P0303 and Coolant
11-25-2006, 09:07 PM
#51
Guest
Posts: n/a
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
>>>>
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
>>>>
11-25-2006, 09:07 PM
#52
Guest
Posts: n/a
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
>>>>
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
>>>>
11-25-2006, 09:10 PM
#53
Guest
Posts: n/a
Re: P0303 and Coolant
I changed the spark plug today. The one I pulled out looked still brand new.
No fouling, white ceramic, clean center electrode, gapped at .035. I
replaced it anyway. I reset the computer and all seems OK for now. I'm sure
it will come back eventually.
Carl
"bllsht" <nospam@dot.net> wrote in message
news:kishm25j93jjopnqfph9lecfj85h61rfcn@4ax.com...
> 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.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
>>>>>
No fouling, white ceramic, clean center electrode, gapped at .035. I
replaced it anyway. I reset the computer and all seems OK for now. I'm sure
it will come back eventually.
Carl
"bllsht" <nospam@dot.net> wrote in message
news:kishm25j93jjopnqfph9lecfj85h61rfcn@4ax.com...
> 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.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
>>>>>
11-25-2006, 09:10 PM
#54
Guest
Posts: n/a
Re: P0303 and Coolant
I changed the spark plug today. The one I pulled out looked still brand new.
No fouling, white ceramic, clean center electrode, gapped at .035. I
replaced it anyway. I reset the computer and all seems OK for now. I'm sure
it will come back eventually.
Carl
"bllsht" <nospam@dot.net> wrote in message
news:kishm25j93jjopnqfph9lecfj85h61rfcn@4ax.com...
> 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.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
>>>>>
No fouling, white ceramic, clean center electrode, gapped at .035. I
replaced it anyway. I reset the computer and all seems OK for now. I'm sure
it will come back eventually.
Carl
"bllsht" <nospam@dot.net> wrote in message
news:kishm25j93jjopnqfph9lecfj85h61rfcn@4ax.com...
> 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.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
>>>>>
11-25-2006, 09:10 PM
#55
Guest
Posts: n/a
Re: P0303 and Coolant
I changed the spark plug today. The one I pulled out looked still brand new.
No fouling, white ceramic, clean center electrode, gapped at .035. I
replaced it anyway. I reset the computer and all seems OK for now. I'm sure
it will come back eventually.
Carl
"bllsht" <nospam@dot.net> wrote in message
news:kishm25j93jjopnqfph9lecfj85h61rfcn@4ax.com...
> 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.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
>>>>>
No fouling, white ceramic, clean center electrode, gapped at .035. I
replaced it anyway. I reset the computer and all seems OK for now. I'm sure
it will come back eventually.
Carl
"bllsht" <nospam@dot.net> wrote in message
news:kishm25j93jjopnqfph9lecfj85h61rfcn@4ax.com...
> 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.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
>>>>>
11-26-2006, 01:42 AM
#56
Guest
Posts: n/a
Re: P0303 and Coolant
Jeff Strickland 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.
Not always. A fuel or compression problem in one cylinder will also set
this code. If you unplug one injector, you'll get it. I've also seen
303's thrown if the engine is revved fast enough to induce valve float,
causing a lack of compression. A fouled plug or bad plug wire should
always be ruled out first, but other causes can be present as well.
> 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.
Not always. A fuel or compression problem in one cylinder will also set
this code. If you unplug one injector, you'll get it. I've also seen
303's thrown if the engine is revved fast enough to induce valve float,
causing a lack of compression. A fouled plug or bad plug wire should
always be ruled out first, but other causes can be present as well.
11-26-2006, 01:42 AM
#57
Guest
Posts: n/a
Re: P0303 and Coolant
Jeff Strickland 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.
Not always. A fuel or compression problem in one cylinder will also set
this code. If you unplug one injector, you'll get it. I've also seen
303's thrown if the engine is revved fast enough to induce valve float,
causing a lack of compression. A fouled plug or bad plug wire should
always be ruled out first, but other causes can be present as well.
> 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.
Not always. A fuel or compression problem in one cylinder will also set
this code. If you unplug one injector, you'll get it. I've also seen
303's thrown if the engine is revved fast enough to induce valve float,
causing a lack of compression. A fouled plug or bad plug wire should
always be ruled out first, but other causes can be present as well.
11-26-2006, 01:42 AM
#58
Guest
Posts: n/a
Re: P0303 and Coolant
Jeff Strickland 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.
Not always. A fuel or compression problem in one cylinder will also set
this code. If you unplug one injector, you'll get it. I've also seen
303's thrown if the engine is revved fast enough to induce valve float,
causing a lack of compression. A fouled plug or bad plug wire should
always be ruled out first, but other causes can be present as well.
> 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.
Not always. A fuel or compression problem in one cylinder will also set
this code. If you unplug one injector, you'll get it. I've also seen
303's thrown if the engine is revved fast enough to induce valve float,
causing a lack of compression. A fouled plug or bad plug wire should
always be ruled out first, but other causes can be present as well.
11-26-2006, 08:27 AM
#59
Guest
Posts: n/a
Re: P0303 and Coolant
I had a P302 code this summer after a carbon cleaning.
When I pulled spark plug number 2 it looked perfect but when I swirled the
tip in a small vial of some solvent a few particles of carbon were washed
out. I replace the plug and it has worked fine since.
"Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message
news:x4qdnTyzJMB2avXYnZ2dnUVZ_uCdnZ2d@comcast.com. ..
>I changed the spark plug today. The one I pulled out looked still brand
>new. No fouling, white ceramic, clean center electrode, gapped at .035. I
>replaced it anyway. I reset the computer and all seems OK for now. I'm sure
>it will come back eventually.
>
> Carl
>
>
> "bllsht" <nospam@dot.net> wrote in message
> news:kishm25j93jjopnqfph9lecfj85h61rfcn@4ax.com...
>> 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. 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
>>>>>>
>
>
When I pulled spark plug number 2 it looked perfect but when I swirled the
tip in a small vial of some solvent a few particles of carbon were washed
out. I replace the plug and it has worked fine since.
"Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message
news:x4qdnTyzJMB2avXYnZ2dnUVZ_uCdnZ2d@comcast.com. ..
>I changed the spark plug today. The one I pulled out looked still brand
>new. No fouling, white ceramic, clean center electrode, gapped at .035. I
>replaced it anyway. I reset the computer and all seems OK for now. I'm sure
>it will come back eventually.
>
> Carl
>
>
> "bllsht" <nospam@dot.net> wrote in message
> news:kishm25j93jjopnqfph9lecfj85h61rfcn@4ax.com...
>> 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. 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
>>>>>>
>
>
11-26-2006, 08:27 AM
#60
Guest
Posts: n/a
Re: P0303 and Coolant
I had a P302 code this summer after a carbon cleaning.
When I pulled spark plug number 2 it looked perfect but when I swirled the
tip in a small vial of some solvent a few particles of carbon were washed
out. I replace the plug and it has worked fine since.
"Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message
news:x4qdnTyzJMB2avXYnZ2dnUVZ_uCdnZ2d@comcast.com. ..
>I changed the spark plug today. The one I pulled out looked still brand
>new. No fouling, white ceramic, clean center electrode, gapped at .035. I
>replaced it anyway. I reset the computer and all seems OK for now. I'm sure
>it will come back eventually.
>
> Carl
>
>
> "bllsht" <nospam@dot.net> wrote in message
> news:kishm25j93jjopnqfph9lecfj85h61rfcn@4ax.com...
>> 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. 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
>>>>>>
>
>
When I pulled spark plug number 2 it looked perfect but when I swirled the
tip in a small vial of some solvent a few particles of carbon were washed
out. I replace the plug and it has worked fine since.
"Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message
news:x4qdnTyzJMB2avXYnZ2dnUVZ_uCdnZ2d@comcast.com. ..
>I changed the spark plug today. The one I pulled out looked still brand
>new. No fouling, white ceramic, clean center electrode, gapped at .035. I
>replaced it anyway. I reset the computer and all seems OK for now. I'm sure
>it will come back eventually.
>
> Carl
>
>
> "bllsht" <nospam@dot.net> wrote in message
> news:kishm25j93jjopnqfph9lecfj85h61rfcn@4ax.com...
>> 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. 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
>>>>>>
>
>