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Re: P0303 and Coolant
This is from the Factory Service Manual, it is printed in bold typefont:
"CAUTION: Do not use coolant additives that are claimed to improve engine cooling." Under Chemical Cleaning: CHEMICAL CLEANING If visual inspection indicates the formation of sludge or scaly deposits, use a radiator cleaner (Mopar Radiator Kleen or equivalent) before flushing. This will soften scale and other deposits and aid the flushing operation. CAUTION: Be sure instructions on the container are followed. I used Zerex 'Flush' (the milder or the two) because the girl that had the WJ before me allowed her corner Quickie-Lube to 'top off' her expansion tank with Prestone Universal which turned the factory G-05 into reddish-brown slime. I also removed the expansion tank and inoperative coolant sensor and cleaned them in the basement laundry tub. The sensor worked fine after a thorough cleaning and reinstallation. You can check on the Jeep web site for recall notices, there was a recall several years ago to install some reflective insulation on the 4 liter engine manifolds. You may be able to clean spark plug number 3 but then replacement is only a couple dollars. The Jeep engines seem to not like the new high tech sparkplugs so it would probably be best to avoid the +2, +4, & iridium plugs. "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message news:BtOdnSkUXY_bLPXYnZ2dnUVZ_vednZ2d@comcast.com. .. > Thanks for the responses, guys. I cleared the code last night and drove > about 20 miles, it hasn't since returned. I'll change the plug today > anyway. There are no plug wires on a 2k. Instead, there is a coil rail > with three coil packs. The P0303 and the coolant are completely unrelated > issues, I just posted in one post to keep the clutter down. > > My research has shown that the P0303 problem is known to be a heat soak > issue with injector #3. Apparently, sometimes the heat from the exhaust > manifold will creep up to injector #3 on a hot shutdown, causing a > misfire. The fix is an insulating wrap around injector #3. > > The coolant in the radiator right now is brown. I assume someone drained > the radiator and re-filled it with standard coolant. That's why I want to > flush the system. I read that there is a 7-hour flush. Apparently I just > add it to the radiator (after draining a small amount, of course), and it > cleans the system during a seven-hour drive. I'll be driving back over to > Seattle next weekend (a five hour drive) and I plan to change the coolant > while I'm there. Am I barking up the right tree here? > > I have seen positive results with using water wetter in an all ready good > cooling system. I would not expect to see results using a it in a clogged, > contaminated, or otherwise maulfuntioning system. Per reccomendation here, > I will not add it to the XJ. Just curious why they say not to use it? > > > > > > "Jeff Strickland" <crwlr@yahoo.com> wrote in message > news:RumdndEuPqiUPvXYnZ2dnUVZ_tydnZ2d@ez2.net... >> Yes. What would you deduce from a P0303 code? >> >> HINT >> The code means the #3 plug is not firing properly, which by definition is >> a spark issue. >> >> >> >> >> >> "bllsht" <nospam@dot.net> wrote in message >> news:c48hm2hv5ver6p6golf49qrpbsvnspqbp9@4ax.com... >>> So just from the P-code you've already determined it's a spark issue. >>> Wow. You're good. >>> >>> >>> On Sat, 25 Nov 2006 09:15:30 -0800, "Jeff Strickland" >>> <crwlr@yahoo.com> wrote: >>> >>>>Relative to the P-code, ALL he needs to address is the spark issue. >>>> >>>> >>>> >>>> >>>>"Earle Horton" <el_anglo_burgues@usa.com> wrote in message >>>>news:45686645$0$21225$88260bb3@free.teranews.c om... >>>>> Heh, I read this as two separate issues. ;^) >>>>> >>>>> You are right that he needs to address the spark issue too. >>>>> >>>>> Earle >>>>> >>>>> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >>>>> news:OeudnbF-e-vX7fXYnZ2dnUVZ_oadnZ2d@ez2.net... >>>>>> You can drain and refill the coolant all you want -- probably a good >>>>>> thing >>>>>> by the way -- but this will not fix the error code. >>>>>> >>>>>> If I got the code you got, I'd be looking at stuff like spark plug >>>>>> wires >>>>> or >>>>>> the coil (if the motor has a dedicated coil for each plug). I >>>>>> certainly >>>>>> would not spend time and money on completely unrelated systems, >>>>>> especially >>>>>> when those systems have their own series of codes to tell me when >>>>>> they >>>>>> are >>>>>> not feeling well. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message >>>>>> news:G9WdnWxDF-WqDPrYnZ2dnUVZ_tidnZ2d@comcast.com... >>>>>> > Jeep in question is my 2000 XJ. 4.0, Aw4. 95,000 miles >>>>>> > >>>>>> > On the way back from Seattle today, I drove down a washboard road >>>>>> > for >>>>>> > about 7 miles, got gas and went to get back on the highway. Less >>>>>> > than >>>>> one >>>>>> > mile after fueling, I get a CEL. Pull over, gas cap is tight, >>>>>> > everything >>>>>> > looks OK. Continue around 100 miles home, CEL solid the entire way. >>>>>> > Fuel >>>>>> > near home, 15.5MPG! I had previously gotten 21.1, 18.9, 20.1. >>>>>> > >>>>>> > Stop at CSK, pull the codes, and I get P0303. Cylinder number 3 >>>>>> > misfire. >>>>>> > Plugs are new copper champ's, Throttle body was recently removed >>>>>> > and >>>>>> > cleaned. Any ideas where to start looking? >>>>>> > >>>>>> > Also, I'm planning on changing the coolant soon. I have heard I can >>>>>> > get >>>>>> > the prestone heater hose tee, and flush it with a garden hose. Then >>>>> drain >>>>>> > the radiator thru the lower hose, fill the radiator with distilled >>>>> water. >>>>>> > Drain again, and refill with 100% coolant. Will this give me the >>>>>> > right >>>>>> > mixture? >>>>>> > >>>>>> > Thanks, >>>>>> > >>>>>> > Carl >>>>>> > >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Posted via a free Usenet account from http://www.teranews.com >>>>> >> > > |
Re: P0303 and Coolant
This is from the Factory Service Manual, it is printed in bold typefont:
"CAUTION: Do not use coolant additives that are claimed to improve engine cooling." Under Chemical Cleaning: CHEMICAL CLEANING If visual inspection indicates the formation of sludge or scaly deposits, use a radiator cleaner (Mopar Radiator Kleen or equivalent) before flushing. This will soften scale and other deposits and aid the flushing operation. CAUTION: Be sure instructions on the container are followed. I used Zerex 'Flush' (the milder or the two) because the girl that had the WJ before me allowed her corner Quickie-Lube to 'top off' her expansion tank with Prestone Universal which turned the factory G-05 into reddish-brown slime. I also removed the expansion tank and inoperative coolant sensor and cleaned them in the basement laundry tub. The sensor worked fine after a thorough cleaning and reinstallation. You can check on the Jeep web site for recall notices, there was a recall several years ago to install some reflective insulation on the 4 liter engine manifolds. You may be able to clean spark plug number 3 but then replacement is only a couple dollars. The Jeep engines seem to not like the new high tech sparkplugs so it would probably be best to avoid the +2, +4, & iridium plugs. "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message news:BtOdnSkUXY_bLPXYnZ2dnUVZ_vednZ2d@comcast.com. .. > Thanks for the responses, guys. I cleared the code last night and drove > about 20 miles, it hasn't since returned. I'll change the plug today > anyway. There are no plug wires on a 2k. Instead, there is a coil rail > with three coil packs. The P0303 and the coolant are completely unrelated > issues, I just posted in one post to keep the clutter down. > > My research has shown that the P0303 problem is known to be a heat soak > issue with injector #3. Apparently, sometimes the heat from the exhaust > manifold will creep up to injector #3 on a hot shutdown, causing a > misfire. The fix is an insulating wrap around injector #3. > > The coolant in the radiator right now is brown. I assume someone drained > the radiator and re-filled it with standard coolant. That's why I want to > flush the system. I read that there is a 7-hour flush. Apparently I just > add it to the radiator (after draining a small amount, of course), and it > cleans the system during a seven-hour drive. I'll be driving back over to > Seattle next weekend (a five hour drive) and I plan to change the coolant > while I'm there. Am I barking up the right tree here? > > I have seen positive results with using water wetter in an all ready good > cooling system. I would not expect to see results using a it in a clogged, > contaminated, or otherwise maulfuntioning system. Per reccomendation here, > I will not add it to the XJ. Just curious why they say not to use it? > > > > > > "Jeff Strickland" <crwlr@yahoo.com> wrote in message > news:RumdndEuPqiUPvXYnZ2dnUVZ_tydnZ2d@ez2.net... >> Yes. What would you deduce from a P0303 code? >> >> HINT >> The code means the #3 plug is not firing properly, which by definition is >> a spark issue. >> >> >> >> >> >> "bllsht" <nospam@dot.net> wrote in message >> news:c48hm2hv5ver6p6golf49qrpbsvnspqbp9@4ax.com... >>> So just from the P-code you've already determined it's a spark issue. >>> Wow. You're good. >>> >>> >>> On Sat, 25 Nov 2006 09:15:30 -0800, "Jeff Strickland" >>> <crwlr@yahoo.com> wrote: >>> >>>>Relative to the P-code, ALL he needs to address is the spark issue. >>>> >>>> >>>> >>>> >>>>"Earle Horton" <el_anglo_burgues@usa.com> wrote in message >>>>news:45686645$0$21225$88260bb3@free.teranews.c om... >>>>> Heh, I read this as two separate issues. ;^) >>>>> >>>>> You are right that he needs to address the spark issue too. >>>>> >>>>> Earle >>>>> >>>>> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >>>>> news:OeudnbF-e-vX7fXYnZ2dnUVZ_oadnZ2d@ez2.net... >>>>>> You can drain and refill the coolant all you want -- probably a good >>>>>> thing >>>>>> by the way -- but this will not fix the error code. >>>>>> >>>>>> If I got the code you got, I'd be looking at stuff like spark plug >>>>>> wires >>>>> or >>>>>> the coil (if the motor has a dedicated coil for each plug). I >>>>>> certainly >>>>>> would not spend time and money on completely unrelated systems, >>>>>> especially >>>>>> when those systems have their own series of codes to tell me when >>>>>> they >>>>>> are >>>>>> not feeling well. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message >>>>>> news:G9WdnWxDF-WqDPrYnZ2dnUVZ_tidnZ2d@comcast.com... >>>>>> > Jeep in question is my 2000 XJ. 4.0, Aw4. 95,000 miles >>>>>> > >>>>>> > On the way back from Seattle today, I drove down a washboard road >>>>>> > for >>>>>> > about 7 miles, got gas and went to get back on the highway. Less >>>>>> > than >>>>> one >>>>>> > mile after fueling, I get a CEL. Pull over, gas cap is tight, >>>>>> > everything >>>>>> > looks OK. Continue around 100 miles home, CEL solid the entire way. >>>>>> > Fuel >>>>>> > near home, 15.5MPG! I had previously gotten 21.1, 18.9, 20.1. >>>>>> > >>>>>> > Stop at CSK, pull the codes, and I get P0303. Cylinder number 3 >>>>>> > misfire. >>>>>> > Plugs are new copper champ's, Throttle body was recently removed >>>>>> > and >>>>>> > cleaned. Any ideas where to start looking? >>>>>> > >>>>>> > Also, I'm planning on changing the coolant soon. I have heard I can >>>>>> > get >>>>>> > the prestone heater hose tee, and flush it with a garden hose. Then >>>>> drain >>>>>> > the radiator thru the lower hose, fill the radiator with distilled >>>>> water. >>>>>> > Drain again, and refill with 100% coolant. Will this give me the >>>>>> > right >>>>>> > mixture? >>>>>> > >>>>>> > Thanks, >>>>>> > >>>>>> > Carl >>>>>> > >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Posted via a free Usenet account from http://www.teranews.com >>>>> >> > > |
Re: P0303 and Coolant
This is from the Factory Service Manual, it is printed in bold typefont:
"CAUTION: Do not use coolant additives that are claimed to improve engine cooling." Under Chemical Cleaning: CHEMICAL CLEANING If visual inspection indicates the formation of sludge or scaly deposits, use a radiator cleaner (Mopar Radiator Kleen or equivalent) before flushing. This will soften scale and other deposits and aid the flushing operation. CAUTION: Be sure instructions on the container are followed. I used Zerex 'Flush' (the milder or the two) because the girl that had the WJ before me allowed her corner Quickie-Lube to 'top off' her expansion tank with Prestone Universal which turned the factory G-05 into reddish-brown slime. I also removed the expansion tank and inoperative coolant sensor and cleaned them in the basement laundry tub. The sensor worked fine after a thorough cleaning and reinstallation. You can check on the Jeep web site for recall notices, there was a recall several years ago to install some reflective insulation on the 4 liter engine manifolds. You may be able to clean spark plug number 3 but then replacement is only a couple dollars. The Jeep engines seem to not like the new high tech sparkplugs so it would probably be best to avoid the +2, +4, & iridium plugs. "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message news:BtOdnSkUXY_bLPXYnZ2dnUVZ_vednZ2d@comcast.com. .. > Thanks for the responses, guys. I cleared the code last night and drove > about 20 miles, it hasn't since returned. I'll change the plug today > anyway. There are no plug wires on a 2k. Instead, there is a coil rail > with three coil packs. The P0303 and the coolant are completely unrelated > issues, I just posted in one post to keep the clutter down. > > My research has shown that the P0303 problem is known to be a heat soak > issue with injector #3. Apparently, sometimes the heat from the exhaust > manifold will creep up to injector #3 on a hot shutdown, causing a > misfire. The fix is an insulating wrap around injector #3. > > The coolant in the radiator right now is brown. I assume someone drained > the radiator and re-filled it with standard coolant. That's why I want to > flush the system. I read that there is a 7-hour flush. Apparently I just > add it to the radiator (after draining a small amount, of course), and it > cleans the system during a seven-hour drive. I'll be driving back over to > Seattle next weekend (a five hour drive) and I plan to change the coolant > while I'm there. Am I barking up the right tree here? > > I have seen positive results with using water wetter in an all ready good > cooling system. I would not expect to see results using a it in a clogged, > contaminated, or otherwise maulfuntioning system. Per reccomendation here, > I will not add it to the XJ. Just curious why they say not to use it? > > > > > > "Jeff Strickland" <crwlr@yahoo.com> wrote in message > news:RumdndEuPqiUPvXYnZ2dnUVZ_tydnZ2d@ez2.net... >> Yes. What would you deduce from a P0303 code? >> >> HINT >> The code means the #3 plug is not firing properly, which by definition is >> a spark issue. >> >> >> >> >> >> "bllsht" <nospam@dot.net> wrote in message >> news:c48hm2hv5ver6p6golf49qrpbsvnspqbp9@4ax.com... >>> So just from the P-code you've already determined it's a spark issue. >>> Wow. You're good. >>> >>> >>> On Sat, 25 Nov 2006 09:15:30 -0800, "Jeff Strickland" >>> <crwlr@yahoo.com> wrote: >>> >>>>Relative to the P-code, ALL he needs to address is the spark issue. >>>> >>>> >>>> >>>> >>>>"Earle Horton" <el_anglo_burgues@usa.com> wrote in message >>>>news:45686645$0$21225$88260bb3@free.teranews.c om... >>>>> Heh, I read this as two separate issues. ;^) >>>>> >>>>> You are right that he needs to address the spark issue too. >>>>> >>>>> Earle >>>>> >>>>> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >>>>> news:OeudnbF-e-vX7fXYnZ2dnUVZ_oadnZ2d@ez2.net... >>>>>> You can drain and refill the coolant all you want -- probably a good >>>>>> thing >>>>>> by the way -- but this will not fix the error code. >>>>>> >>>>>> If I got the code you got, I'd be looking at stuff like spark plug >>>>>> wires >>>>> or >>>>>> the coil (if the motor has a dedicated coil for each plug). I >>>>>> certainly >>>>>> would not spend time and money on completely unrelated systems, >>>>>> especially >>>>>> when those systems have their own series of codes to tell me when >>>>>> they >>>>>> are >>>>>> not feeling well. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message >>>>>> news:G9WdnWxDF-WqDPrYnZ2dnUVZ_tidnZ2d@comcast.com... >>>>>> > Jeep in question is my 2000 XJ. 4.0, Aw4. 95,000 miles >>>>>> > >>>>>> > On the way back from Seattle today, I drove down a washboard road >>>>>> > for >>>>>> > about 7 miles, got gas and went to get back on the highway. Less >>>>>> > than >>>>> one >>>>>> > mile after fueling, I get a CEL. Pull over, gas cap is tight, >>>>>> > everything >>>>>> > looks OK. Continue around 100 miles home, CEL solid the entire way. >>>>>> > Fuel >>>>>> > near home, 15.5MPG! I had previously gotten 21.1, 18.9, 20.1. >>>>>> > >>>>>> > Stop at CSK, pull the codes, and I get P0303. Cylinder number 3 >>>>>> > misfire. >>>>>> > Plugs are new copper champ's, Throttle body was recently removed >>>>>> > and >>>>>> > cleaned. Any ideas where to start looking? >>>>>> > >>>>>> > Also, I'm planning on changing the coolant soon. I have heard I can >>>>>> > get >>>>>> > the prestone heater hose tee, and flush it with a garden hose. Then >>>>> drain >>>>>> > the radiator thru the lower hose, fill the radiator with distilled >>>>> water. >>>>>> > Drain again, and refill with 100% coolant. Will this give me the >>>>>> > right >>>>>> > mixture? >>>>>> > >>>>>> > Thanks, >>>>>> > >>>>>> > Carl >>>>>> > >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Posted via a free Usenet account from http://www.teranews.com >>>>> >> > > |
Re: P0303 and Coolant
Thanks, Billy. I only ever run the copper Champ's in my 4.0's. $1.29 each. I
have recently (less thank 2000 miles ago) replaced all 6 plugs. I bought one new and will replace plug #3 today. Thanks, Carl "billy ray" <billy_ray@SPAMfuse.net> wrote in message news:9f157$4568bb04$422afc51$4598@FUSE.NET... > This is from the Factory Service Manual, it is printed in bold typefont: > "CAUTION: Do not use coolant additives that are > > claimed to improve engine cooling." > > Under Chemical Cleaning: > > CHEMICAL CLEANING > > If visual inspection indicates the formation of > > sludge or scaly deposits, use a radiator cleaner > > (Mopar Radiator Kleen or equivalent) before flushing. > > This will soften scale and other deposits and aid the > > flushing operation. > > CAUTION: Be sure instructions on the container are > > followed. > > > > I used Zerex 'Flush' (the milder or the two) because the girl that had the > WJ before me allowed her corner Quickie-Lube to 'top off' her expansion > tank with Prestone Universal which turned the factory G-05 into > reddish-brown slime. > > I also removed the expansion tank and inoperative coolant sensor and > cleaned them in the basement laundry tub. The sensor worked fine after a > thorough cleaning and reinstallation. > > You can check on the Jeep web site for recall notices, there was a recall > several years ago to install some reflective insulation on the 4 liter > engine manifolds. > > You may be able to clean spark plug number 3 but then replacement is only > a couple dollars. The Jeep engines seem to not like the new high tech > sparkplugs so it would probably be best to avoid the +2, +4, & iridium > plugs. > > > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message > news:BtOdnSkUXY_bLPXYnZ2dnUVZ_vednZ2d@comcast.com. .. >> Thanks for the responses, guys. I cleared the code last night and drove >> about 20 miles, it hasn't since returned. I'll change the plug today >> anyway. There are no plug wires on a 2k. Instead, there is a coil rail >> with three coil packs. The P0303 and the coolant are completely unrelated >> issues, I just posted in one post to keep the clutter down. >> >> My research has shown that the P0303 problem is known to be a heat soak >> issue with injector #3. Apparently, sometimes the heat from the exhaust >> manifold will creep up to injector #3 on a hot shutdown, causing a >> misfire. The fix is an insulating wrap around injector #3. >> >> The coolant in the radiator right now is brown. I assume someone drained >> the radiator and re-filled it with standard coolant. That's why I want to >> flush the system. I read that there is a 7-hour flush. Apparently I just >> add it to the radiator (after draining a small amount, of course), and it >> cleans the system during a seven-hour drive. I'll be driving back over to >> Seattle next weekend (a five hour drive) and I plan to change the coolant >> while I'm there. Am I barking up the right tree here? >> >> I have seen positive results with using water wetter in an all ready good >> cooling system. I would not expect to see results using a it in a >> clogged, contaminated, or otherwise maulfuntioning system. Per >> reccomendation here, I will not add it to the XJ. Just curious why they >> say not to use it? >> >> >> >> >> >> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >> news:RumdndEuPqiUPvXYnZ2dnUVZ_tydnZ2d@ez2.net... >>> Yes. What would you deduce from a P0303 code? >>> >>> HINT >>> The code means the #3 plug is not firing properly, which by definition >>> is a spark issue. >>> >>> >>> >>> >>> >>> "bllsht" <nospam@dot.net> wrote in message >>> news:c48hm2hv5ver6p6golf49qrpbsvnspqbp9@4ax.com... >>>> So just from the P-code you've already determined it's a spark issue. >>>> Wow. You're good. >>>> >>>> >>>> On Sat, 25 Nov 2006 09:15:30 -0800, "Jeff Strickland" >>>> <crwlr@yahoo.com> wrote: >>>> >>>>>Relative to the P-code, ALL he needs to address is the spark issue. >>>>> >>>>> >>>>> >>>>> >>>>>"Earle Horton" <el_anglo_burgues@usa.com> wrote in message >>>>>news:45686645$0$21225$88260bb3@free.teranews. com... >>>>>> Heh, I read this as two separate issues. ;^) >>>>>> >>>>>> You are right that he needs to address the spark issue too. >>>>>> >>>>>> Earle >>>>>> >>>>>> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >>>>>> news:OeudnbF-e-vX7fXYnZ2dnUVZ_oadnZ2d@ez2.net... >>>>>>> You can drain and refill the coolant all you want -- probably a good >>>>>>> thing >>>>>>> by the way -- but this will not fix the error code. >>>>>>> >>>>>>> If I got the code you got, I'd be looking at stuff like spark plug >>>>>>> wires >>>>>> or >>>>>>> the coil (if the motor has a dedicated coil for each plug). I >>>>>>> certainly >>>>>>> would not spend time and money on completely unrelated systems, >>>>>>> especially >>>>>>> when those systems have their own series of codes to tell me when >>>>>>> they >>>>>>> are >>>>>>> not feeling well. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message >>>>>>> news:G9WdnWxDF-WqDPrYnZ2dnUVZ_tidnZ2d@comcast.com... >>>>>>> > Jeep in question is my 2000 XJ. 4.0, Aw4. 95,000 miles >>>>>>> > >>>>>>> > On the way back from Seattle today, I drove down a washboard road >>>>>>> > for >>>>>>> > about 7 miles, got gas and went to get back on the highway. Less >>>>>>> > than >>>>>> one >>>>>>> > mile after fueling, I get a CEL. Pull over, gas cap is tight, >>>>>>> > everything >>>>>>> > looks OK. Continue around 100 miles home, CEL solid the entire >>>>>>> > way. >>>>>>> > Fuel >>>>>>> > near home, 15.5MPG! I had previously gotten 21.1, 18.9, 20.1. >>>>>>> > >>>>>>> > Stop at CSK, pull the codes, and I get P0303. Cylinder number 3 >>>>>>> > misfire. >>>>>>> > Plugs are new copper champ's, Throttle body was recently removed >>>>>>> > and >>>>>>> > cleaned. Any ideas where to start looking? >>>>>>> > >>>>>>> > Also, I'm planning on changing the coolant soon. I have heard I >>>>>>> > can get >>>>>>> > the prestone heater hose tee, and flush it with a garden hose. >>>>>>> > Then >>>>>> drain >>>>>>> > the radiator thru the lower hose, fill the radiator with distilled >>>>>> water. >>>>>>> > Drain again, and refill with 100% coolant. Will this give me the >>>>>>> > right >>>>>>> > mixture? >>>>>>> > >>>>>>> > Thanks, >>>>>>> > >>>>>>> > Carl >>>>>>> > >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Posted via a free Usenet account from http://www.teranews.com >>>>>> >>> >> >> > > |
Re: P0303 and Coolant
Thanks, Billy. I only ever run the copper Champ's in my 4.0's. $1.29 each. I
have recently (less thank 2000 miles ago) replaced all 6 plugs. I bought one new and will replace plug #3 today. Thanks, Carl "billy ray" <billy_ray@SPAMfuse.net> wrote in message news:9f157$4568bb04$422afc51$4598@FUSE.NET... > This is from the Factory Service Manual, it is printed in bold typefont: > "CAUTION: Do not use coolant additives that are > > claimed to improve engine cooling." > > Under Chemical Cleaning: > > CHEMICAL CLEANING > > If visual inspection indicates the formation of > > sludge or scaly deposits, use a radiator cleaner > > (Mopar Radiator Kleen or equivalent) before flushing. > > This will soften scale and other deposits and aid the > > flushing operation. > > CAUTION: Be sure instructions on the container are > > followed. > > > > I used Zerex 'Flush' (the milder or the two) because the girl that had the > WJ before me allowed her corner Quickie-Lube to 'top off' her expansion > tank with Prestone Universal which turned the factory G-05 into > reddish-brown slime. > > I also removed the expansion tank and inoperative coolant sensor and > cleaned them in the basement laundry tub. The sensor worked fine after a > thorough cleaning and reinstallation. > > You can check on the Jeep web site for recall notices, there was a recall > several years ago to install some reflective insulation on the 4 liter > engine manifolds. > > You may be able to clean spark plug number 3 but then replacement is only > a couple dollars. The Jeep engines seem to not like the new high tech > sparkplugs so it would probably be best to avoid the +2, +4, & iridium > plugs. > > > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message > news:BtOdnSkUXY_bLPXYnZ2dnUVZ_vednZ2d@comcast.com. .. >> Thanks for the responses, guys. I cleared the code last night and drove >> about 20 miles, it hasn't since returned. I'll change the plug today >> anyway. There are no plug wires on a 2k. Instead, there is a coil rail >> with three coil packs. The P0303 and the coolant are completely unrelated >> issues, I just posted in one post to keep the clutter down. >> >> My research has shown that the P0303 problem is known to be a heat soak >> issue with injector #3. Apparently, sometimes the heat from the exhaust >> manifold will creep up to injector #3 on a hot shutdown, causing a >> misfire. The fix is an insulating wrap around injector #3. >> >> The coolant in the radiator right now is brown. I assume someone drained >> the radiator and re-filled it with standard coolant. That's why I want to >> flush the system. I read that there is a 7-hour flush. Apparently I just >> add it to the radiator (after draining a small amount, of course), and it >> cleans the system during a seven-hour drive. I'll be driving back over to >> Seattle next weekend (a five hour drive) and I plan to change the coolant >> while I'm there. Am I barking up the right tree here? >> >> I have seen positive results with using water wetter in an all ready good >> cooling system. I would not expect to see results using a it in a >> clogged, contaminated, or otherwise maulfuntioning system. Per >> reccomendation here, I will not add it to the XJ. Just curious why they >> say not to use it? >> >> >> >> >> >> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >> news:RumdndEuPqiUPvXYnZ2dnUVZ_tydnZ2d@ez2.net... >>> Yes. What would you deduce from a P0303 code? >>> >>> HINT >>> The code means the #3 plug is not firing properly, which by definition >>> is a spark issue. >>> >>> >>> >>> >>> >>> "bllsht" <nospam@dot.net> wrote in message >>> news:c48hm2hv5ver6p6golf49qrpbsvnspqbp9@4ax.com... >>>> So just from the P-code you've already determined it's a spark issue. >>>> Wow. You're good. >>>> >>>> >>>> On Sat, 25 Nov 2006 09:15:30 -0800, "Jeff Strickland" >>>> <crwlr@yahoo.com> wrote: >>>> >>>>>Relative to the P-code, ALL he needs to address is the spark issue. >>>>> >>>>> >>>>> >>>>> >>>>>"Earle Horton" <el_anglo_burgues@usa.com> wrote in message >>>>>news:45686645$0$21225$88260bb3@free.teranews. com... >>>>>> Heh, I read this as two separate issues. ;^) >>>>>> >>>>>> You are right that he needs to address the spark issue too. >>>>>> >>>>>> Earle >>>>>> >>>>>> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >>>>>> news:OeudnbF-e-vX7fXYnZ2dnUVZ_oadnZ2d@ez2.net... >>>>>>> You can drain and refill the coolant all you want -- probably a good >>>>>>> thing >>>>>>> by the way -- but this will not fix the error code. >>>>>>> >>>>>>> If I got the code you got, I'd be looking at stuff like spark plug >>>>>>> wires >>>>>> or >>>>>>> the coil (if the motor has a dedicated coil for each plug). I >>>>>>> certainly >>>>>>> would not spend time and money on completely unrelated systems, >>>>>>> especially >>>>>>> when those systems have their own series of codes to tell me when >>>>>>> they >>>>>>> are >>>>>>> not feeling well. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message >>>>>>> news:G9WdnWxDF-WqDPrYnZ2dnUVZ_tidnZ2d@comcast.com... >>>>>>> > Jeep in question is my 2000 XJ. 4.0, Aw4. 95,000 miles >>>>>>> > >>>>>>> > On the way back from Seattle today, I drove down a washboard road >>>>>>> > for >>>>>>> > about 7 miles, got gas and went to get back on the highway. Less >>>>>>> > than >>>>>> one >>>>>>> > mile after fueling, I get a CEL. Pull over, gas cap is tight, >>>>>>> > everything >>>>>>> > looks OK. Continue around 100 miles home, CEL solid the entire >>>>>>> > way. >>>>>>> > Fuel >>>>>>> > near home, 15.5MPG! I had previously gotten 21.1, 18.9, 20.1. >>>>>>> > >>>>>>> > Stop at CSK, pull the codes, and I get P0303. Cylinder number 3 >>>>>>> > misfire. >>>>>>> > Plugs are new copper champ's, Throttle body was recently removed >>>>>>> > and >>>>>>> > cleaned. Any ideas where to start looking? >>>>>>> > >>>>>>> > Also, I'm planning on changing the coolant soon. I have heard I >>>>>>> > can get >>>>>>> > the prestone heater hose tee, and flush it with a garden hose. >>>>>>> > Then >>>>>> drain >>>>>>> > the radiator thru the lower hose, fill the radiator with distilled >>>>>> water. >>>>>>> > Drain again, and refill with 100% coolant. Will this give me the >>>>>>> > right >>>>>>> > mixture? >>>>>>> > >>>>>>> > Thanks, >>>>>>> > >>>>>>> > Carl >>>>>>> > >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Posted via a free Usenet account from http://www.teranews.com >>>>>> >>> >> >> > > |
Re: P0303 and Coolant
Thanks, Billy. I only ever run the copper Champ's in my 4.0's. $1.29 each. I
have recently (less thank 2000 miles ago) replaced all 6 plugs. I bought one new and will replace plug #3 today. Thanks, Carl "billy ray" <billy_ray@SPAMfuse.net> wrote in message news:9f157$4568bb04$422afc51$4598@FUSE.NET... > This is from the Factory Service Manual, it is printed in bold typefont: > "CAUTION: Do not use coolant additives that are > > claimed to improve engine cooling." > > Under Chemical Cleaning: > > CHEMICAL CLEANING > > If visual inspection indicates the formation of > > sludge or scaly deposits, use a radiator cleaner > > (Mopar Radiator Kleen or equivalent) before flushing. > > This will soften scale and other deposits and aid the > > flushing operation. > > CAUTION: Be sure instructions on the container are > > followed. > > > > I used Zerex 'Flush' (the milder or the two) because the girl that had the > WJ before me allowed her corner Quickie-Lube to 'top off' her expansion > tank with Prestone Universal which turned the factory G-05 into > reddish-brown slime. > > I also removed the expansion tank and inoperative coolant sensor and > cleaned them in the basement laundry tub. The sensor worked fine after a > thorough cleaning and reinstallation. > > You can check on the Jeep web site for recall notices, there was a recall > several years ago to install some reflective insulation on the 4 liter > engine manifolds. > > You may be able to clean spark plug number 3 but then replacement is only > a couple dollars. The Jeep engines seem to not like the new high tech > sparkplugs so it would probably be best to avoid the +2, +4, & iridium > plugs. > > > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message > news:BtOdnSkUXY_bLPXYnZ2dnUVZ_vednZ2d@comcast.com. .. >> Thanks for the responses, guys. I cleared the code last night and drove >> about 20 miles, it hasn't since returned. I'll change the plug today >> anyway. There are no plug wires on a 2k. Instead, there is a coil rail >> with three coil packs. The P0303 and the coolant are completely unrelated >> issues, I just posted in one post to keep the clutter down. >> >> My research has shown that the P0303 problem is known to be a heat soak >> issue with injector #3. Apparently, sometimes the heat from the exhaust >> manifold will creep up to injector #3 on a hot shutdown, causing a >> misfire. The fix is an insulating wrap around injector #3. >> >> The coolant in the radiator right now is brown. I assume someone drained >> the radiator and re-filled it with standard coolant. That's why I want to >> flush the system. I read that there is a 7-hour flush. Apparently I just >> add it to the radiator (after draining a small amount, of course), and it >> cleans the system during a seven-hour drive. I'll be driving back over to >> Seattle next weekend (a five hour drive) and I plan to change the coolant >> while I'm there. Am I barking up the right tree here? >> >> I have seen positive results with using water wetter in an all ready good >> cooling system. I would not expect to see results using a it in a >> clogged, contaminated, or otherwise maulfuntioning system. Per >> reccomendation here, I will not add it to the XJ. Just curious why they >> say not to use it? >> >> >> >> >> >> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >> news:RumdndEuPqiUPvXYnZ2dnUVZ_tydnZ2d@ez2.net... >>> Yes. What would you deduce from a P0303 code? >>> >>> HINT >>> The code means the #3 plug is not firing properly, which by definition >>> is a spark issue. >>> >>> >>> >>> >>> >>> "bllsht" <nospam@dot.net> wrote in message >>> news:c48hm2hv5ver6p6golf49qrpbsvnspqbp9@4ax.com... >>>> So just from the P-code you've already determined it's a spark issue. >>>> Wow. You're good. >>>> >>>> >>>> On Sat, 25 Nov 2006 09:15:30 -0800, "Jeff Strickland" >>>> <crwlr@yahoo.com> wrote: >>>> >>>>>Relative to the P-code, ALL he needs to address is the spark issue. >>>>> >>>>> >>>>> >>>>> >>>>>"Earle Horton" <el_anglo_burgues@usa.com> wrote in message >>>>>news:45686645$0$21225$88260bb3@free.teranews. com... >>>>>> Heh, I read this as two separate issues. ;^) >>>>>> >>>>>> You are right that he needs to address the spark issue too. >>>>>> >>>>>> Earle >>>>>> >>>>>> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >>>>>> news:OeudnbF-e-vX7fXYnZ2dnUVZ_oadnZ2d@ez2.net... >>>>>>> You can drain and refill the coolant all you want -- probably a good >>>>>>> thing >>>>>>> by the way -- but this will not fix the error code. >>>>>>> >>>>>>> If I got the code you got, I'd be looking at stuff like spark plug >>>>>>> wires >>>>>> or >>>>>>> the coil (if the motor has a dedicated coil for each plug). I >>>>>>> certainly >>>>>>> would not spend time and money on completely unrelated systems, >>>>>>> especially >>>>>>> when those systems have their own series of codes to tell me when >>>>>>> they >>>>>>> are >>>>>>> not feeling well. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message >>>>>>> news:G9WdnWxDF-WqDPrYnZ2dnUVZ_tidnZ2d@comcast.com... >>>>>>> > Jeep in question is my 2000 XJ. 4.0, Aw4. 95,000 miles >>>>>>> > >>>>>>> > On the way back from Seattle today, I drove down a washboard road >>>>>>> > for >>>>>>> > about 7 miles, got gas and went to get back on the highway. Less >>>>>>> > than >>>>>> one >>>>>>> > mile after fueling, I get a CEL. Pull over, gas cap is tight, >>>>>>> > everything >>>>>>> > looks OK. Continue around 100 miles home, CEL solid the entire >>>>>>> > way. >>>>>>> > Fuel >>>>>>> > near home, 15.5MPG! I had previously gotten 21.1, 18.9, 20.1. >>>>>>> > >>>>>>> > Stop at CSK, pull the codes, and I get P0303. Cylinder number 3 >>>>>>> > misfire. >>>>>>> > Plugs are new copper champ's, Throttle body was recently removed >>>>>>> > and >>>>>>> > cleaned. Any ideas where to start looking? >>>>>>> > >>>>>>> > Also, I'm planning on changing the coolant soon. I have heard I >>>>>>> > can get >>>>>>> > the prestone heater hose tee, and flush it with a garden hose. >>>>>>> > Then >>>>>> drain >>>>>>> > the radiator thru the lower hose, fill the radiator with distilled >>>>>> water. >>>>>>> > Drain again, and refill with 100% coolant. Will this give me the >>>>>>> > right >>>>>>> > mixture? >>>>>>> > >>>>>>> > Thanks, >>>>>>> > >>>>>>> > Carl >>>>>>> > >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Posted via a free Usenet account from http://www.teranews.com >>>>>> >>> >> >> > > |
Re: P0303 and Coolant
Positive results meaning a much lower reading on the gauge. For now, I'll
skip the chemical flush and the water wetter. Thanks for the responses. I will replace plug #3 today and find out more about injector #3 insulation. Carl "Earle Horton" <el_anglo_burgues@usa.com> wrote in message news:4568a6f5$0$21090$88260bb3@free.teranews.com.. . > Brown coolant is undoubtedly bad, but it doesn't necessarily translate to > scale and sludge in the coolant chambers of the block or blocked radiator > tubes. I would flush the system with water, and only resort to a chemical > flush if big pieces came out. Otherwise, you can assume that most of it > is > already in suspension. Another tell-tale is the bottom of the overflow > reservoir. Nasty pieces will tend to accumulate there because it doesn't > really have circulation. I am against flushing with chemicals unless you > have reason to believe that they are necessary, and then you have to take > extra care to rinse them all out afterwards. > > When you say "positive results with using water wetter in an all ready > good > cooling system" what do you mean exactly? Lower reading on the > temperature > gauge? I don't get how you can tell, that this stuff is doing what they > say > it does. > > Earle > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message > news:BtOdnSkUXY_bLPXYnZ2dnUVZ_vednZ2d@comcast.com. .. >> Thanks for the responses, guys. I cleared the code last night and drove >> about 20 miles, it hasn't since returned. I'll change the plug today > anyway. >> There are no plug wires on a 2k. Instead, there is a coil rail with three >> coil packs. The P0303 and the coolant are completely unrelated issues, I >> just posted in one post to keep the clutter down. >> >> My research has shown that the P0303 problem is known to be a heat soak >> issue with injector #3. Apparently, sometimes the heat from the exhaust >> manifold will creep up to injector #3 on a hot shutdown, causing a > misfire. >> The fix is an insulating wrap around injector #3. >> >> The coolant in the radiator right now is brown. I assume someone drained > the >> radiator and re-filled it with standard coolant. That's why I want to > flush >> the system. I read that there is a 7-hour flush. Apparently I just add it > to >> the radiator (after draining a small amount, of course), and it cleans >> the >> system during a seven-hour drive. I'll be driving back over to Seattle > next >> weekend (a five hour drive) and I plan to change the coolant while I'm >> there. Am I barking up the right tree here? >> >> I have seen positive results with using water wetter in an all ready good >> cooling system. I would not expect to see results using a it in a >> clogged, >> contaminated, or otherwise maulfuntioning system. Per reccomendation >> here, > I >> will not add it to the XJ. Just curious why they say not to use it? >> >> >> >> >> >> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >> news:RumdndEuPqiUPvXYnZ2dnUVZ_tydnZ2d@ez2.net... >> > Yes. What would you deduce from a P0303 code? >> > >> > HINT >> > The code means the #3 plug is not firing properly, which by definition > is >> > a spark issue. >> > >> > >> > >> > >> > >> > "bllsht" <nospam@dot.net> wrote in message >> > news:c48hm2hv5ver6p6golf49qrpbsvnspqbp9@4ax.com... >> >> So just from the P-code you've already determined it's a spark issue. >> >> Wow. You're good. >> >> >> >> >> >> On Sat, 25 Nov 2006 09:15:30 -0800, "Jeff Strickland" >> >> <crwlr@yahoo.com> wrote: >> >> >> >>>Relative to the P-code, ALL he needs to address is the spark issue. >> >>> >> >>> >> >>> >> >>> >> >>>"Earle Horton" <el_anglo_burgues@usa.com> wrote in message >> >>>news:45686645$0$21225$88260bb3@free.teranews.co m... >> >>>> Heh, I read this as two separate issues. ;^) >> >>>> >> >>>> You are right that he needs to address the spark issue too. >> >>>> >> >>>> Earle >> >>>> >> >>>> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >> >>>> news:OeudnbF-e-vX7fXYnZ2dnUVZ_oadnZ2d@ez2.net... >> >>>>> You can drain and refill the coolant all you want -- probably a >> >>>>> good >> >>>>> thing >> >>>>> by the way -- but this will not fix the error code. >> >>>>> >> >>>>> If I got the code you got, I'd be looking at stuff like spark plug >> >>>>> wires >> >>>> or >> >>>>> the coil (if the motor has a dedicated coil for each plug). I >> >>>>> certainly >> >>>>> would not spend time and money on completely unrelated systems, >> >>>>> especially >> >>>>> when those systems have their own series of codes to tell me when > they >> >>>>> are >> >>>>> not feeling well. >> >>>>> >> >>>>> >> >>>>> >> >>>>> >> >>>>> "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message >> >>>>> news:G9WdnWxDF-WqDPrYnZ2dnUVZ_tidnZ2d@comcast.com... >> >>>>> > Jeep in question is my 2000 XJ. 4.0, Aw4. 95,000 miles >> >>>>> > >> >>>>> > On the way back from Seattle today, I drove down a washboard road >> >>>>> > for >> >>>>> > about 7 miles, got gas and went to get back on the highway. Less >> >>>>> > than >> >>>> one >> >>>>> > mile after fueling, I get a CEL. Pull over, gas cap is tight, >> >>>>> > everything >> >>>>> > looks OK. Continue around 100 miles home, CEL solid the entire > way. >> >>>>> > Fuel >> >>>>> > near home, 15.5MPG! I had previously gotten 21.1, 18.9, 20.1. >> >>>>> > >> >>>>> > Stop at CSK, pull the codes, and I get P0303. Cylinder number 3 >> >>>>> > misfire. >> >>>>> > Plugs are new copper champ's, Throttle body was recently removed > and >> >>>>> > cleaned. Any ideas where to start looking? >> >>>>> > >> >>>>> > Also, I'm planning on changing the coolant soon. I have heard I > can >> >>>>> > get >> >>>>> > the prestone heater hose tee, and flush it with a garden hose. > Then >> >>>> drain >> >>>>> > the radiator thru the lower hose, fill the radiator with >> >>>>> > distilled >> >>>> water. >> >>>>> > Drain again, and refill with 100% coolant. Will this give me the >> >>>>> > right >> >>>>> > mixture? >> >>>>> > >> >>>>> > Thanks, >> >>>>> > >> >>>>> > Carl >> >>>>> > >> >>>>> >> >>>> >> >>>> >> >>>> >> >>>> -- >> >>>> Posted via a free Usenet account from http://www.teranews.com >> >>>> >> > >> >> > > > > -- > Posted via a free Usenet account from http://www.teranews.com > |
Re: P0303 and Coolant
Positive results meaning a much lower reading on the gauge. For now, I'll
skip the chemical flush and the water wetter. Thanks for the responses. I will replace plug #3 today and find out more about injector #3 insulation. Carl "Earle Horton" <el_anglo_burgues@usa.com> wrote in message news:4568a6f5$0$21090$88260bb3@free.teranews.com.. . > Brown coolant is undoubtedly bad, but it doesn't necessarily translate to > scale and sludge in the coolant chambers of the block or blocked radiator > tubes. I would flush the system with water, and only resort to a chemical > flush if big pieces came out. Otherwise, you can assume that most of it > is > already in suspension. Another tell-tale is the bottom of the overflow > reservoir. Nasty pieces will tend to accumulate there because it doesn't > really have circulation. I am against flushing with chemicals unless you > have reason to believe that they are necessary, and then you have to take > extra care to rinse them all out afterwards. > > When you say "positive results with using water wetter in an all ready > good > cooling system" what do you mean exactly? Lower reading on the > temperature > gauge? I don't get how you can tell, that this stuff is doing what they > say > it does. > > Earle > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message > news:BtOdnSkUXY_bLPXYnZ2dnUVZ_vednZ2d@comcast.com. .. >> Thanks for the responses, guys. I cleared the code last night and drove >> about 20 miles, it hasn't since returned. I'll change the plug today > anyway. >> There are no plug wires on a 2k. Instead, there is a coil rail with three >> coil packs. The P0303 and the coolant are completely unrelated issues, I >> just posted in one post to keep the clutter down. >> >> My research has shown that the P0303 problem is known to be a heat soak >> issue with injector #3. Apparently, sometimes the heat from the exhaust >> manifold will creep up to injector #3 on a hot shutdown, causing a > misfire. >> The fix is an insulating wrap around injector #3. >> >> The coolant in the radiator right now is brown. I assume someone drained > the >> radiator and re-filled it with standard coolant. That's why I want to > flush >> the system. I read that there is a 7-hour flush. Apparently I just add it > to >> the radiator (after draining a small amount, of course), and it cleans >> the >> system during a seven-hour drive. I'll be driving back over to Seattle > next >> weekend (a five hour drive) and I plan to change the coolant while I'm >> there. Am I barking up the right tree here? >> >> I have seen positive results with using water wetter in an all ready good >> cooling system. I would not expect to see results using a it in a >> clogged, >> contaminated, or otherwise maulfuntioning system. Per reccomendation >> here, > I >> will not add it to the XJ. Just curious why they say not to use it? >> >> >> >> >> >> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >> news:RumdndEuPqiUPvXYnZ2dnUVZ_tydnZ2d@ez2.net... >> > Yes. What would you deduce from a P0303 code? >> > >> > HINT >> > The code means the #3 plug is not firing properly, which by definition > is >> > a spark issue. >> > >> > >> > >> > >> > >> > "bllsht" <nospam@dot.net> wrote in message >> > news:c48hm2hv5ver6p6golf49qrpbsvnspqbp9@4ax.com... >> >> So just from the P-code you've already determined it's a spark issue. >> >> Wow. You're good. >> >> >> >> >> >> On Sat, 25 Nov 2006 09:15:30 -0800, "Jeff Strickland" >> >> <crwlr@yahoo.com> wrote: >> >> >> >>>Relative to the P-code, ALL he needs to address is the spark issue. >> >>> >> >>> >> >>> >> >>> >> >>>"Earle Horton" <el_anglo_burgues@usa.com> wrote in message >> >>>news:45686645$0$21225$88260bb3@free.teranews.co m... >> >>>> Heh, I read this as two separate issues. ;^) >> >>>> >> >>>> You are right that he needs to address the spark issue too. >> >>>> >> >>>> Earle >> >>>> >> >>>> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >> >>>> news:OeudnbF-e-vX7fXYnZ2dnUVZ_oadnZ2d@ez2.net... >> >>>>> You can drain and refill the coolant all you want -- probably a >> >>>>> good >> >>>>> thing >> >>>>> by the way -- but this will not fix the error code. >> >>>>> >> >>>>> If I got the code you got, I'd be looking at stuff like spark plug >> >>>>> wires >> >>>> or >> >>>>> the coil (if the motor has a dedicated coil for each plug). I >> >>>>> certainly >> >>>>> would not spend time and money on completely unrelated systems, >> >>>>> especially >> >>>>> when those systems have their own series of codes to tell me when > they >> >>>>> are >> >>>>> not feeling well. >> >>>>> >> >>>>> >> >>>>> >> >>>>> >> >>>>> "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message >> >>>>> news:G9WdnWxDF-WqDPrYnZ2dnUVZ_tidnZ2d@comcast.com... >> >>>>> > Jeep in question is my 2000 XJ. 4.0, Aw4. 95,000 miles >> >>>>> > >> >>>>> > On the way back from Seattle today, I drove down a washboard road >> >>>>> > for >> >>>>> > about 7 miles, got gas and went to get back on the highway. Less >> >>>>> > than >> >>>> one >> >>>>> > mile after fueling, I get a CEL. Pull over, gas cap is tight, >> >>>>> > everything >> >>>>> > looks OK. Continue around 100 miles home, CEL solid the entire > way. >> >>>>> > Fuel >> >>>>> > near home, 15.5MPG! I had previously gotten 21.1, 18.9, 20.1. >> >>>>> > >> >>>>> > Stop at CSK, pull the codes, and I get P0303. Cylinder number 3 >> >>>>> > misfire. >> >>>>> > Plugs are new copper champ's, Throttle body was recently removed > and >> >>>>> > cleaned. Any ideas where to start looking? >> >>>>> > >> >>>>> > Also, I'm planning on changing the coolant soon. I have heard I > can >> >>>>> > get >> >>>>> > the prestone heater hose tee, and flush it with a garden hose. > Then >> >>>> drain >> >>>>> > the radiator thru the lower hose, fill the radiator with >> >>>>> > distilled >> >>>> water. >> >>>>> > Drain again, and refill with 100% coolant. Will this give me the >> >>>>> > right >> >>>>> > mixture? >> >>>>> > >> >>>>> > Thanks, >> >>>>> > >> >>>>> > Carl >> >>>>> > >> >>>>> >> >>>> >> >>>> >> >>>> >> >>>> -- >> >>>> Posted via a free Usenet account from http://www.teranews.com >> >>>> >> > >> >> > > > > -- > Posted via a free Usenet account from http://www.teranews.com > |
Re: P0303 and Coolant
Positive results meaning a much lower reading on the gauge. For now, I'll
skip the chemical flush and the water wetter. Thanks for the responses. I will replace plug #3 today and find out more about injector #3 insulation. Carl "Earle Horton" <el_anglo_burgues@usa.com> wrote in message news:4568a6f5$0$21090$88260bb3@free.teranews.com.. . > Brown coolant is undoubtedly bad, but it doesn't necessarily translate to > scale and sludge in the coolant chambers of the block or blocked radiator > tubes. I would flush the system with water, and only resort to a chemical > flush if big pieces came out. Otherwise, you can assume that most of it > is > already in suspension. Another tell-tale is the bottom of the overflow > reservoir. Nasty pieces will tend to accumulate there because it doesn't > really have circulation. I am against flushing with chemicals unless you > have reason to believe that they are necessary, and then you have to take > extra care to rinse them all out afterwards. > > When you say "positive results with using water wetter in an all ready > good > cooling system" what do you mean exactly? Lower reading on the > temperature > gauge? I don't get how you can tell, that this stuff is doing what they > say > it does. > > Earle > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message > news:BtOdnSkUXY_bLPXYnZ2dnUVZ_vednZ2d@comcast.com. .. >> Thanks for the responses, guys. I cleared the code last night and drove >> about 20 miles, it hasn't since returned. I'll change the plug today > anyway. >> There are no plug wires on a 2k. Instead, there is a coil rail with three >> coil packs. The P0303 and the coolant are completely unrelated issues, I >> just posted in one post to keep the clutter down. >> >> My research has shown that the P0303 problem is known to be a heat soak >> issue with injector #3. Apparently, sometimes the heat from the exhaust >> manifold will creep up to injector #3 on a hot shutdown, causing a > misfire. >> The fix is an insulating wrap around injector #3. >> >> The coolant in the radiator right now is brown. I assume someone drained > the >> radiator and re-filled it with standard coolant. That's why I want to > flush >> the system. I read that there is a 7-hour flush. Apparently I just add it > to >> the radiator (after draining a small amount, of course), and it cleans >> the >> system during a seven-hour drive. I'll be driving back over to Seattle > next >> weekend (a five hour drive) and I plan to change the coolant while I'm >> there. Am I barking up the right tree here? >> >> I have seen positive results with using water wetter in an all ready good >> cooling system. I would not expect to see results using a it in a >> clogged, >> contaminated, or otherwise maulfuntioning system. Per reccomendation >> here, > I >> will not add it to the XJ. Just curious why they say not to use it? >> >> >> >> >> >> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >> news:RumdndEuPqiUPvXYnZ2dnUVZ_tydnZ2d@ez2.net... >> > Yes. What would you deduce from a P0303 code? >> > >> > HINT >> > The code means the #3 plug is not firing properly, which by definition > is >> > a spark issue. >> > >> > >> > >> > >> > >> > "bllsht" <nospam@dot.net> wrote in message >> > news:c48hm2hv5ver6p6golf49qrpbsvnspqbp9@4ax.com... >> >> So just from the P-code you've already determined it's a spark issue. >> >> Wow. You're good. >> >> >> >> >> >> On Sat, 25 Nov 2006 09:15:30 -0800, "Jeff Strickland" >> >> <crwlr@yahoo.com> wrote: >> >> >> >>>Relative to the P-code, ALL he needs to address is the spark issue. >> >>> >> >>> >> >>> >> >>> >> >>>"Earle Horton" <el_anglo_burgues@usa.com> wrote in message >> >>>news:45686645$0$21225$88260bb3@free.teranews.co m... >> >>>> Heh, I read this as two separate issues. ;^) >> >>>> >> >>>> You are right that he needs to address the spark issue too. >> >>>> >> >>>> Earle >> >>>> >> >>>> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >> >>>> news:OeudnbF-e-vX7fXYnZ2dnUVZ_oadnZ2d@ez2.net... >> >>>>> You can drain and refill the coolant all you want -- probably a >> >>>>> good >> >>>>> thing >> >>>>> by the way -- but this will not fix the error code. >> >>>>> >> >>>>> If I got the code you got, I'd be looking at stuff like spark plug >> >>>>> wires >> >>>> or >> >>>>> the coil (if the motor has a dedicated coil for each plug). I >> >>>>> certainly >> >>>>> would not spend time and money on completely unrelated systems, >> >>>>> especially >> >>>>> when those systems have their own series of codes to tell me when > they >> >>>>> are >> >>>>> not feeling well. >> >>>>> >> >>>>> >> >>>>> >> >>>>> >> >>>>> "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message >> >>>>> news:G9WdnWxDF-WqDPrYnZ2dnUVZ_tidnZ2d@comcast.com... >> >>>>> > Jeep in question is my 2000 XJ. 4.0, Aw4. 95,000 miles >> >>>>> > >> >>>>> > On the way back from Seattle today, I drove down a washboard road >> >>>>> > for >> >>>>> > about 7 miles, got gas and went to get back on the highway. Less >> >>>>> > than >> >>>> one >> >>>>> > mile after fueling, I get a CEL. Pull over, gas cap is tight, >> >>>>> > everything >> >>>>> > looks OK. Continue around 100 miles home, CEL solid the entire > way. >> >>>>> > Fuel >> >>>>> > near home, 15.5MPG! I had previously gotten 21.1, 18.9, 20.1. >> >>>>> > >> >>>>> > Stop at CSK, pull the codes, and I get P0303. Cylinder number 3 >> >>>>> > misfire. >> >>>>> > Plugs are new copper champ's, Throttle body was recently removed > and >> >>>>> > cleaned. Any ideas where to start looking? >> >>>>> > >> >>>>> > Also, I'm planning on changing the coolant soon. I have heard I > can >> >>>>> > get >> >>>>> > the prestone heater hose tee, and flush it with a garden hose. > Then >> >>>> drain >> >>>>> > the radiator thru the lower hose, fill the radiator with >> >>>>> > distilled >> >>>> water. >> >>>>> > Drain again, and refill with 100% coolant. Will this give me the >> >>>>> > right >> >>>>> > mixture? >> >>>>> > >> >>>>> > Thanks, >> >>>>> > >> >>>>> > Carl >> >>>>> > >> >>>>> >> >>>> >> >>>> >> >>>> >> >>>> -- >> >>>> Posted via a free Usenet account from http://www.teranews.com >> >>>> >> > >> >> > > > > -- > Posted via a free Usenet account from http://www.teranews.com > |
Re: P0303 and Coolant
P0303 means the PCM has detected a misfire in the #3 cylinder. Do you
see the word SPARK in that definition? HINT There's a lot of things that can cause a misfire, and some things that can cause the PCM to THINK it detects a misfire. On Sat, 25 Nov 2006 12:09:50 -0800, "Jeff Strickland" <crwlr@yahoo.com> wrote: >Yes. What would you deduce from a P0303 code? > >HINT >The code means the #3 plug is not firing properly, which by definition is a >spark issue. > > > > > >"bllsht" <nospam@dot.net> wrote in message >news:c48hm2hv5ver6p6golf49qrpbsvnspqbp9@4ax.com.. . >> So just from the P-code you've already determined it's a spark issue. >> Wow. You're good. >> >> >> On Sat, 25 Nov 2006 09:15:30 -0800, "Jeff Strickland" >> <crwlr@yahoo.com> wrote: >> >>>Relative to the P-code, ALL he needs to address is the spark issue. >>> >>> >>> >>> >>>"Earle Horton" <el_anglo_burgues@usa.com> wrote in message >>>news:45686645$0$21225$88260bb3@free.teranews.co m... >>>> Heh, I read this as two separate issues. ;^) >>>> >>>> You are right that he needs to address the spark issue too. >>>> >>>> Earle >>>> >>>> "Jeff Strickland" <crwlr@yahoo.com> wrote in message >>>> news:OeudnbF-e-vX7fXYnZ2dnUVZ_oadnZ2d@ez2.net... >>>>> You can drain and refill the coolant all you want -- probably a good >>>>> thing >>>>> by the way -- but this will not fix the error code. >>>>> >>>>> If I got the code you got, I'd be looking at stuff like spark plug >>>>> wires >>>> or >>>>> the coil (if the motor has a dedicated coil for each plug). I certainly >>>>> would not spend time and money on completely unrelated systems, >>>>> especially >>>>> when those systems have their own series of codes to tell me when they >>>>> are >>>>> not feeling well. >>>>> >>>>> >>>>> >>>>> >>>>> "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message >>>>> news:G9WdnWxDF-WqDPrYnZ2dnUVZ_tidnZ2d@comcast.com... >>>>> > Jeep in question is my 2000 XJ. 4.0, Aw4. 95,000 miles >>>>> > >>>>> > On the way back from Seattle today, I drove down a washboard road for >>>>> > about 7 miles, got gas and went to get back on the highway. Less than >>>> one >>>>> > mile after fueling, I get a CEL. Pull over, gas cap is tight, >>>>> > everything >>>>> > looks OK. Continue around 100 miles home, CEL solid the entire way. >>>>> > Fuel >>>>> > near home, 15.5MPG! I had previously gotten 21.1, 18.9, 20.1. >>>>> > >>>>> > Stop at CSK, pull the codes, and I get P0303. Cylinder number 3 >>>>> > misfire. >>>>> > Plugs are new copper champ's, Throttle body was recently removed and >>>>> > cleaned. Any ideas where to start looking? >>>>> > >>>>> > Also, I'm planning on changing the coolant soon. I have heard I can >>>>> > get >>>>> > the prestone heater hose tee, and flush it with a garden hose. Then >>>> drain >>>>> > the radiator thru the lower hose, fill the radiator with distilled >>>> water. >>>>> > Drain again, and refill with 100% coolant. Will this give me the >>>>> > right >>>>> > mixture? >>>>> > >>>>> > Thanks, >>>>> > >>>>> > Carl >>>>> > >>>>> >>>> >>>> >>>> >>>> -- >>>> Posted via a free Usenet account from http://www.teranews.com >>>> |
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