Odd problem with 98 TJ
10-31-2005, 09:59 PM
#21
Guest
Posts: n/a
Re: Odd problem with 98 TJ
You might also want to check the TPS.
This is a problem that some of us have been having off and on. As far as I know, no
one who has had it (who has the original engine) has ever truely figured out the
problem. It hardly ever will do it for the shop. You have to have the scanners
hooked up and running when it does for them to see it.
On mine, which does NOT have the original engine, we ended up having to clock the
distributor to stop this problem. The shop thinks it was either the wrong crank or
the wrong cam for the engine...thats what I get for going with a cheap rebuilt. My
rig litteraly spent months in the shop while they tried to figure it out.
On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net> wrote:
>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>the camshaft position sensor should be the next logical step. It's
>>mounted inside the distributor, just underneath the plastic shield
>>underneath the distributor cap.
>>
>>Jerry
>>
>>Kelly wrote:
>>> Hi Jerry, That's what i thoought at first, so as i said, that was the first
>>> thing I replaced. I have a spanking new CPS in there, but the problem still
>>> persists. I did save the old one so at least i have a spare now.
>>>
>>> Regards, Kelly
>>>
>>>
>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>
>>>>Maybe the cam position sensor?
>>>>
>>>>Kelly wrote:
>>>>
>>>>>Hi,
>>>>>
>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>
>>>>>I have an intermittant problem the engine. It only happens on occasion (maybe
>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds. The engine
>>>>>will sudenly begin to stutter, and keeping the foot in the gas will just drop
>>>>>the revs faster. I just have to press in the clutch and coast to the side of
>>>>>the road. Once off the road, it will idle smooth as silk, no danger of
>>>>>stalling, and if I sit there idleing for just a minute or two I can continue
>>>>>with no problem.
>>>>>
>>>>>I had a similar problem a couple of years ago and finally tracked it down to a
>>>>>bad Crank Position sensor. Since this problem was so similar, I went ahead and
>>>>>put a new CPS in but the problem still remains. I thought it might be bad gas,
>>>>>but several tanks from differant locations and a couple of bottles of fuel
>>>>>system cleaner have not fixed it. Although I would think that bad gas or a
>>>>>clogged filter would give a more consistant, and sustained symptom. Any other
>>>>>ideas??
>>>>>
>>>>>Thanks for your help.
>>>>>
>>>>>Kelly
>>>>>98TJ
>>>>>2" suspension
>>>>>1" body
>>>>>truetrak in dana 35
>>>>>32" Super Swampers
>>>>>
>>>>
>>>
This is a problem that some of us have been having off and on. As far as I know, no
one who has had it (who has the original engine) has ever truely figured out the
problem. It hardly ever will do it for the shop. You have to have the scanners
hooked up and running when it does for them to see it.
On mine, which does NOT have the original engine, we ended up having to clock the
distributor to stop this problem. The shop thinks it was either the wrong crank or
the wrong cam for the engine...thats what I get for going with a cheap rebuilt. My
rig litteraly spent months in the shop while they tried to figure it out.
On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net> wrote:
>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>the camshaft position sensor should be the next logical step. It's
>>mounted inside the distributor, just underneath the plastic shield
>>underneath the distributor cap.
>>
>>Jerry
>>
>>Kelly wrote:
>>> Hi Jerry, That's what i thoought at first, so as i said, that was the first
>>> thing I replaced. I have a spanking new CPS in there, but the problem still
>>> persists. I did save the old one so at least i have a spare now.
>>>
>>> Regards, Kelly
>>>
>>>
>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>
>>>>Maybe the cam position sensor?
>>>>
>>>>Kelly wrote:
>>>>
>>>>>Hi,
>>>>>
>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>
>>>>>I have an intermittant problem the engine. It only happens on occasion (maybe
>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds. The engine
>>>>>will sudenly begin to stutter, and keeping the foot in the gas will just drop
>>>>>the revs faster. I just have to press in the clutch and coast to the side of
>>>>>the road. Once off the road, it will idle smooth as silk, no danger of
>>>>>stalling, and if I sit there idleing for just a minute or two I can continue
>>>>>with no problem.
>>>>>
>>>>>I had a similar problem a couple of years ago and finally tracked it down to a
>>>>>bad Crank Position sensor. Since this problem was so similar, I went ahead and
>>>>>put a new CPS in but the problem still remains. I thought it might be bad gas,
>>>>>but several tanks from differant locations and a couple of bottles of fuel
>>>>>system cleaner have not fixed it. Although I would think that bad gas or a
>>>>>clogged filter would give a more consistant, and sustained symptom. Any other
>>>>>ideas??
>>>>>
>>>>>Thanks for your help.
>>>>>
>>>>>Kelly
>>>>>98TJ
>>>>>2" suspension
>>>>>1" body
>>>>>truetrak in dana 35
>>>>>32" Super Swampers
>>>>>
>>>>
>>>
10-31-2005, 09:59 PM
#22
Guest
Posts: n/a
Re: Odd problem with 98 TJ
You might also want to check the TPS.
This is a problem that some of us have been having off and on. As far as I know, no
one who has had it (who has the original engine) has ever truely figured out the
problem. It hardly ever will do it for the shop. You have to have the scanners
hooked up and running when it does for them to see it.
On mine, which does NOT have the original engine, we ended up having to clock the
distributor to stop this problem. The shop thinks it was either the wrong crank or
the wrong cam for the engine...thats what I get for going with a cheap rebuilt. My
rig litteraly spent months in the shop while they tried to figure it out.
On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net> wrote:
>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>the camshaft position sensor should be the next logical step. It's
>>mounted inside the distributor, just underneath the plastic shield
>>underneath the distributor cap.
>>
>>Jerry
>>
>>Kelly wrote:
>>> Hi Jerry, That's what i thoought at first, so as i said, that was the first
>>> thing I replaced. I have a spanking new CPS in there, but the problem still
>>> persists. I did save the old one so at least i have a spare now.
>>>
>>> Regards, Kelly
>>>
>>>
>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>
>>>>Maybe the cam position sensor?
>>>>
>>>>Kelly wrote:
>>>>
>>>>>Hi,
>>>>>
>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>
>>>>>I have an intermittant problem the engine. It only happens on occasion (maybe
>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds. The engine
>>>>>will sudenly begin to stutter, and keeping the foot in the gas will just drop
>>>>>the revs faster. I just have to press in the clutch and coast to the side of
>>>>>the road. Once off the road, it will idle smooth as silk, no danger of
>>>>>stalling, and if I sit there idleing for just a minute or two I can continue
>>>>>with no problem.
>>>>>
>>>>>I had a similar problem a couple of years ago and finally tracked it down to a
>>>>>bad Crank Position sensor. Since this problem was so similar, I went ahead and
>>>>>put a new CPS in but the problem still remains. I thought it might be bad gas,
>>>>>but several tanks from differant locations and a couple of bottles of fuel
>>>>>system cleaner have not fixed it. Although I would think that bad gas or a
>>>>>clogged filter would give a more consistant, and sustained symptom. Any other
>>>>>ideas??
>>>>>
>>>>>Thanks for your help.
>>>>>
>>>>>Kelly
>>>>>98TJ
>>>>>2" suspension
>>>>>1" body
>>>>>truetrak in dana 35
>>>>>32" Super Swampers
>>>>>
>>>>
>>>
This is a problem that some of us have been having off and on. As far as I know, no
one who has had it (who has the original engine) has ever truely figured out the
problem. It hardly ever will do it for the shop. You have to have the scanners
hooked up and running when it does for them to see it.
On mine, which does NOT have the original engine, we ended up having to clock the
distributor to stop this problem. The shop thinks it was either the wrong crank or
the wrong cam for the engine...thats what I get for going with a cheap rebuilt. My
rig litteraly spent months in the shop while they tried to figure it out.
On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net> wrote:
>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>the camshaft position sensor should be the next logical step. It's
>>mounted inside the distributor, just underneath the plastic shield
>>underneath the distributor cap.
>>
>>Jerry
>>
>>Kelly wrote:
>>> Hi Jerry, That's what i thoought at first, so as i said, that was the first
>>> thing I replaced. I have a spanking new CPS in there, but the problem still
>>> persists. I did save the old one so at least i have a spare now.
>>>
>>> Regards, Kelly
>>>
>>>
>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>
>>>>Maybe the cam position sensor?
>>>>
>>>>Kelly wrote:
>>>>
>>>>>Hi,
>>>>>
>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>
>>>>>I have an intermittant problem the engine. It only happens on occasion (maybe
>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds. The engine
>>>>>will sudenly begin to stutter, and keeping the foot in the gas will just drop
>>>>>the revs faster. I just have to press in the clutch and coast to the side of
>>>>>the road. Once off the road, it will idle smooth as silk, no danger of
>>>>>stalling, and if I sit there idleing for just a minute or two I can continue
>>>>>with no problem.
>>>>>
>>>>>I had a similar problem a couple of years ago and finally tracked it down to a
>>>>>bad Crank Position sensor. Since this problem was so similar, I went ahead and
>>>>>put a new CPS in but the problem still remains. I thought it might be bad gas,
>>>>>but several tanks from differant locations and a couple of bottles of fuel
>>>>>system cleaner have not fixed it. Although I would think that bad gas or a
>>>>>clogged filter would give a more consistant, and sustained symptom. Any other
>>>>>ideas??
>>>>>
>>>>>Thanks for your help.
>>>>>
>>>>>Kelly
>>>>>98TJ
>>>>>2" suspension
>>>>>1" body
>>>>>truetrak in dana 35
>>>>>32" Super Swampers
>>>>>
>>>>
>>>
11-04-2005, 11:25 PM
#23
Guest
Posts: n/a
Re: Odd problem with 98 TJ
try unplugging the TPS several times. It may just need a bit of oxidation
removal from the pins...
cal
"jbjeep" <jbjeep@saw.net> wrote in message
news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com...
> You might also want to check the TPS.
>
> This is a problem that some of us have been having off and on. As far as
> I know, no
> one who has had it (who has the original engine) has ever truely figured
> out the
> problem. It hardly ever will do it for the shop. You have to have the
> scanners
> hooked up and running when it does for them to see it.
>
> On mine, which does NOT have the original engine, we ended up having to
> clock the
> distributor to stop this problem. The shop thinks it was either the wrong
> crank or
> the wrong cam for the engine...thats what I get for going with a cheap
> rebuilt. My
> rig litteraly spent months in the shop while they tried to figure it out.
>
>
>
> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>the camshaft position sensor should be the next logical step. It's
>>>mounted inside the distributor, just underneath the plastic shield
>>>underneath the distributor cap.
>>>
>>>Jerry
>>>
>>>Kelly wrote:
>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>> first
>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>> still
>>>> persists. I did save the old one so at least i have a spare now.
>>>>
>>>> Regards, Kelly
>>>>
>>>>
>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>
>>>>>Maybe the cam position sensor?
>>>>>
>>>>>Kelly wrote:
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>
>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>occasion (maybe
>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>The engine
>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>just drop
>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>side of
>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>of
>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>continue
>>>>>>with no problem.
>>>>>>
>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>down to a
>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>ahead and
>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>bad gas,
>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>fuel
>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>or a
>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>Any other
>>>>>>ideas??
>>>>>>
>>>>>>Thanks for your help.
>>>>>>
>>>>>>Kelly
>>>>>>98TJ
>>>>>>2" suspension
>>>>>>1" body
>>>>>>truetrak in dana 35
>>>>>>32" Super Swampers
>>>>>>
>>>>>
>>>>
removal from the pins...
cal
"jbjeep" <jbjeep@saw.net> wrote in message
news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com...
> You might also want to check the TPS.
>
> This is a problem that some of us have been having off and on. As far as
> I know, no
> one who has had it (who has the original engine) has ever truely figured
> out the
> problem. It hardly ever will do it for the shop. You have to have the
> scanners
> hooked up and running when it does for them to see it.
>
> On mine, which does NOT have the original engine, we ended up having to
> clock the
> distributor to stop this problem. The shop thinks it was either the wrong
> crank or
> the wrong cam for the engine...thats what I get for going with a cheap
> rebuilt. My
> rig litteraly spent months in the shop while they tried to figure it out.
>
>
>
> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>the camshaft position sensor should be the next logical step. It's
>>>mounted inside the distributor, just underneath the plastic shield
>>>underneath the distributor cap.
>>>
>>>Jerry
>>>
>>>Kelly wrote:
>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>> first
>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>> still
>>>> persists. I did save the old one so at least i have a spare now.
>>>>
>>>> Regards, Kelly
>>>>
>>>>
>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>
>>>>>Maybe the cam position sensor?
>>>>>
>>>>>Kelly wrote:
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>
>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>occasion (maybe
>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>The engine
>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>just drop
>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>side of
>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>of
>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>continue
>>>>>>with no problem.
>>>>>>
>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>down to a
>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>ahead and
>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>bad gas,
>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>fuel
>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>or a
>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>Any other
>>>>>>ideas??
>>>>>>
>>>>>>Thanks for your help.
>>>>>>
>>>>>>Kelly
>>>>>>98TJ
>>>>>>2" suspension
>>>>>>1" body
>>>>>>truetrak in dana 35
>>>>>>32" Super Swampers
>>>>>>
>>>>>
>>>>
11-04-2005, 11:25 PM
#24
Guest
Posts: n/a
Re: Odd problem with 98 TJ
try unplugging the TPS several times. It may just need a bit of oxidation
removal from the pins...
cal
"jbjeep" <jbjeep@saw.net> wrote in message
news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com...
> You might also want to check the TPS.
>
> This is a problem that some of us have been having off and on. As far as
> I know, no
> one who has had it (who has the original engine) has ever truely figured
> out the
> problem. It hardly ever will do it for the shop. You have to have the
> scanners
> hooked up and running when it does for them to see it.
>
> On mine, which does NOT have the original engine, we ended up having to
> clock the
> distributor to stop this problem. The shop thinks it was either the wrong
> crank or
> the wrong cam for the engine...thats what I get for going with a cheap
> rebuilt. My
> rig litteraly spent months in the shop while they tried to figure it out.
>
>
>
> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>the camshaft position sensor should be the next logical step. It's
>>>mounted inside the distributor, just underneath the plastic shield
>>>underneath the distributor cap.
>>>
>>>Jerry
>>>
>>>Kelly wrote:
>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>> first
>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>> still
>>>> persists. I did save the old one so at least i have a spare now.
>>>>
>>>> Regards, Kelly
>>>>
>>>>
>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>
>>>>>Maybe the cam position sensor?
>>>>>
>>>>>Kelly wrote:
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>
>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>occasion (maybe
>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>The engine
>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>just drop
>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>side of
>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>of
>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>continue
>>>>>>with no problem.
>>>>>>
>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>down to a
>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>ahead and
>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>bad gas,
>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>fuel
>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>or a
>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>Any other
>>>>>>ideas??
>>>>>>
>>>>>>Thanks for your help.
>>>>>>
>>>>>>Kelly
>>>>>>98TJ
>>>>>>2" suspension
>>>>>>1" body
>>>>>>truetrak in dana 35
>>>>>>32" Super Swampers
>>>>>>
>>>>>
>>>>
removal from the pins...
cal
"jbjeep" <jbjeep@saw.net> wrote in message
news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com...
> You might also want to check the TPS.
>
> This is a problem that some of us have been having off and on. As far as
> I know, no
> one who has had it (who has the original engine) has ever truely figured
> out the
> problem. It hardly ever will do it for the shop. You have to have the
> scanners
> hooked up and running when it does for them to see it.
>
> On mine, which does NOT have the original engine, we ended up having to
> clock the
> distributor to stop this problem. The shop thinks it was either the wrong
> crank or
> the wrong cam for the engine...thats what I get for going with a cheap
> rebuilt. My
> rig litteraly spent months in the shop while they tried to figure it out.
>
>
>
> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>the camshaft position sensor should be the next logical step. It's
>>>mounted inside the distributor, just underneath the plastic shield
>>>underneath the distributor cap.
>>>
>>>Jerry
>>>
>>>Kelly wrote:
>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>> first
>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>> still
>>>> persists. I did save the old one so at least i have a spare now.
>>>>
>>>> Regards, Kelly
>>>>
>>>>
>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>
>>>>>Maybe the cam position sensor?
>>>>>
>>>>>Kelly wrote:
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>
>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>occasion (maybe
>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>The engine
>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>just drop
>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>side of
>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>of
>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>continue
>>>>>>with no problem.
>>>>>>
>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>down to a
>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>ahead and
>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>bad gas,
>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>fuel
>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>or a
>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>Any other
>>>>>>ideas??
>>>>>>
>>>>>>Thanks for your help.
>>>>>>
>>>>>>Kelly
>>>>>>98TJ
>>>>>>2" suspension
>>>>>>1" body
>>>>>>truetrak in dana 35
>>>>>>32" Super Swampers
>>>>>>
>>>>>
>>>>
11-04-2005, 11:25 PM
#25
Guest
Posts: n/a
Re: Odd problem with 98 TJ
try unplugging the TPS several times. It may just need a bit of oxidation
removal from the pins...
cal
"jbjeep" <jbjeep@saw.net> wrote in message
news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com...
> You might also want to check the TPS.
>
> This is a problem that some of us have been having off and on. As far as
> I know, no
> one who has had it (who has the original engine) has ever truely figured
> out the
> problem. It hardly ever will do it for the shop. You have to have the
> scanners
> hooked up and running when it does for them to see it.
>
> On mine, which does NOT have the original engine, we ended up having to
> clock the
> distributor to stop this problem. The shop thinks it was either the wrong
> crank or
> the wrong cam for the engine...thats what I get for going with a cheap
> rebuilt. My
> rig litteraly spent months in the shop while they tried to figure it out.
>
>
>
> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>the camshaft position sensor should be the next logical step. It's
>>>mounted inside the distributor, just underneath the plastic shield
>>>underneath the distributor cap.
>>>
>>>Jerry
>>>
>>>Kelly wrote:
>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>> first
>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>> still
>>>> persists. I did save the old one so at least i have a spare now.
>>>>
>>>> Regards, Kelly
>>>>
>>>>
>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>
>>>>>Maybe the cam position sensor?
>>>>>
>>>>>Kelly wrote:
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>
>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>occasion (maybe
>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>The engine
>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>just drop
>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>side of
>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>of
>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>continue
>>>>>>with no problem.
>>>>>>
>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>down to a
>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>ahead and
>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>bad gas,
>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>fuel
>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>or a
>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>Any other
>>>>>>ideas??
>>>>>>
>>>>>>Thanks for your help.
>>>>>>
>>>>>>Kelly
>>>>>>98TJ
>>>>>>2" suspension
>>>>>>1" body
>>>>>>truetrak in dana 35
>>>>>>32" Super Swampers
>>>>>>
>>>>>
>>>>
removal from the pins...
cal
"jbjeep" <jbjeep@saw.net> wrote in message
news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com...
> You might also want to check the TPS.
>
> This is a problem that some of us have been having off and on. As far as
> I know, no
> one who has had it (who has the original engine) has ever truely figured
> out the
> problem. It hardly ever will do it for the shop. You have to have the
> scanners
> hooked up and running when it does for them to see it.
>
> On mine, which does NOT have the original engine, we ended up having to
> clock the
> distributor to stop this problem. The shop thinks it was either the wrong
> crank or
> the wrong cam for the engine...thats what I get for going with a cheap
> rebuilt. My
> rig litteraly spent months in the shop while they tried to figure it out.
>
>
>
> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>the camshaft position sensor should be the next logical step. It's
>>>mounted inside the distributor, just underneath the plastic shield
>>>underneath the distributor cap.
>>>
>>>Jerry
>>>
>>>Kelly wrote:
>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>> first
>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>> still
>>>> persists. I did save the old one so at least i have a spare now.
>>>>
>>>> Regards, Kelly
>>>>
>>>>
>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>
>>>>>Maybe the cam position sensor?
>>>>>
>>>>>Kelly wrote:
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>
>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>occasion (maybe
>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>The engine
>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>just drop
>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>side of
>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>of
>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>continue
>>>>>>with no problem.
>>>>>>
>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>down to a
>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>ahead and
>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>bad gas,
>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>fuel
>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>or a
>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>Any other
>>>>>>ideas??
>>>>>>
>>>>>>Thanks for your help.
>>>>>>
>>>>>>Kelly
>>>>>>98TJ
>>>>>>2" suspension
>>>>>>1" body
>>>>>>truetrak in dana 35
>>>>>>32" Super Swampers
>>>>>>
>>>>>
>>>>
11-05-2005, 01:48 AM
#26
Guest
Posts: n/a
Re: Odd problem with 98 TJ
Thanks Cal, that sounds like an easy and inexpensive thing to try. pardon my
ignorance, but what and where is the TPS? I really need to invest in a Jeep
shop manual:-)I hate Chiltons and Hanes books and to be honest i haven't even
seen one of those available for the 98 wrangler.
Kelly
In article <9vWaf.990$4C5.432381@twister.southeast.rr.com>, Cal says...
>
>try unplugging the TPS several times. It may just need a bit of oxidation
>removal from the pins...
>
>cal
>
>"jbjeep" <jbjeep@saw.net> wrote in message
>news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com.. .
>> You might also want to check the TPS.
>>
>> This is a problem that some of us have been having off and on. As far as
>> I know, no
>> one who has had it (who has the original engine) has ever truely figured
>> out the
>> problem. It hardly ever will do it for the shop. You have to have the
>> scanners
>> hooked up and running when it does for them to see it.
>>
>> On mine, which does NOT have the original engine, we ended up having to
>> clock the
>> distributor to stop this problem. The shop thinks it was either the wrong
>> crank or
>> the wrong cam for the engine...thats what I get for going with a cheap
>> rebuilt. My
>> rig litteraly spent months in the shop while they tried to figure it out.
>>
>>
>>
>> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
>> wrote:
>>
>>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>>the camshaft position sensor should be the next logical step. It's
>>>>mounted inside the distributor, just underneath the plastic shield
>>>>underneath the distributor cap.
>>>>
>>>>Jerry
>>>>
>>>>Kelly wrote:
>>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>>> first
>>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>>> still
>>>>> persists. I did save the old one so at least i have a spare now.
>>>>>
>>>>> Regards, Kelly
>>>>>
>>>>>
>>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>>
>>>>>>Maybe the cam position sensor?
>>>>>>
>>>>>>Kelly wrote:
>>>>>>
>>>>>>>Hi,
>>>>>>>
>>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>>
>>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>>occasion (maybe
>>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>>The engine
>>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>>just drop
>>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>>side of
>>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>>of
>>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>>continue
>>>>>>>with no problem.
>>>>>>>
>>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>>down to a
>>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>>ahead and
>>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>>bad gas,
>>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>>fuel
>>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>>or a
>>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>>Any other
>>>>>>>ideas??
>>>>>>>
>>>>>>>Thanks for your help.
>>>>>>>
>>>>>>>Kelly
>>>>>>>98TJ
>>>>>>>2" suspension
>>>>>>>1" body
>>>>>>>truetrak in dana 35
>>>>>>>32" Super Swampers
>>>>>>>
>>>>>>
>>>>>
>
>
ignorance, but what and where is the TPS? I really need to invest in a Jeep
shop manual:-)I hate Chiltons and Hanes books and to be honest i haven't even
seen one of those available for the 98 wrangler.
Kelly
In article <9vWaf.990$4C5.432381@twister.southeast.rr.com>, Cal says...
>
>try unplugging the TPS several times. It may just need a bit of oxidation
>removal from the pins...
>
>cal
>
>"jbjeep" <jbjeep@saw.net> wrote in message
>news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com.. .
>> You might also want to check the TPS.
>>
>> This is a problem that some of us have been having off and on. As far as
>> I know, no
>> one who has had it (who has the original engine) has ever truely figured
>> out the
>> problem. It hardly ever will do it for the shop. You have to have the
>> scanners
>> hooked up and running when it does for them to see it.
>>
>> On mine, which does NOT have the original engine, we ended up having to
>> clock the
>> distributor to stop this problem. The shop thinks it was either the wrong
>> crank or
>> the wrong cam for the engine...thats what I get for going with a cheap
>> rebuilt. My
>> rig litteraly spent months in the shop while they tried to figure it out.
>>
>>
>>
>> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
>> wrote:
>>
>>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>>the camshaft position sensor should be the next logical step. It's
>>>>mounted inside the distributor, just underneath the plastic shield
>>>>underneath the distributor cap.
>>>>
>>>>Jerry
>>>>
>>>>Kelly wrote:
>>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>>> first
>>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>>> still
>>>>> persists. I did save the old one so at least i have a spare now.
>>>>>
>>>>> Regards, Kelly
>>>>>
>>>>>
>>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>>
>>>>>>Maybe the cam position sensor?
>>>>>>
>>>>>>Kelly wrote:
>>>>>>
>>>>>>>Hi,
>>>>>>>
>>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>>
>>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>>occasion (maybe
>>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>>The engine
>>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>>just drop
>>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>>side of
>>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>>of
>>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>>continue
>>>>>>>with no problem.
>>>>>>>
>>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>>down to a
>>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>>ahead and
>>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>>bad gas,
>>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>>fuel
>>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>>or a
>>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>>Any other
>>>>>>>ideas??
>>>>>>>
>>>>>>>Thanks for your help.
>>>>>>>
>>>>>>>Kelly
>>>>>>>98TJ
>>>>>>>2" suspension
>>>>>>>1" body
>>>>>>>truetrak in dana 35
>>>>>>>32" Super Swampers
>>>>>>>
>>>>>>
>>>>>
>
>
11-05-2005, 01:48 AM
#27
Guest
Posts: n/a
Re: Odd problem with 98 TJ
Thanks Cal, that sounds like an easy and inexpensive thing to try. pardon my
ignorance, but what and where is the TPS? I really need to invest in a Jeep
shop manual:-)I hate Chiltons and Hanes books and to be honest i haven't even
seen one of those available for the 98 wrangler.
Kelly
In article <9vWaf.990$4C5.432381@twister.southeast.rr.com>, Cal says...
>
>try unplugging the TPS several times. It may just need a bit of oxidation
>removal from the pins...
>
>cal
>
>"jbjeep" <jbjeep@saw.net> wrote in message
>news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com.. .
>> You might also want to check the TPS.
>>
>> This is a problem that some of us have been having off and on. As far as
>> I know, no
>> one who has had it (who has the original engine) has ever truely figured
>> out the
>> problem. It hardly ever will do it for the shop. You have to have the
>> scanners
>> hooked up and running when it does for them to see it.
>>
>> On mine, which does NOT have the original engine, we ended up having to
>> clock the
>> distributor to stop this problem. The shop thinks it was either the wrong
>> crank or
>> the wrong cam for the engine...thats what I get for going with a cheap
>> rebuilt. My
>> rig litteraly spent months in the shop while they tried to figure it out.
>>
>>
>>
>> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
>> wrote:
>>
>>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>>the camshaft position sensor should be the next logical step. It's
>>>>mounted inside the distributor, just underneath the plastic shield
>>>>underneath the distributor cap.
>>>>
>>>>Jerry
>>>>
>>>>Kelly wrote:
>>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>>> first
>>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>>> still
>>>>> persists. I did save the old one so at least i have a spare now.
>>>>>
>>>>> Regards, Kelly
>>>>>
>>>>>
>>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>>
>>>>>>Maybe the cam position sensor?
>>>>>>
>>>>>>Kelly wrote:
>>>>>>
>>>>>>>Hi,
>>>>>>>
>>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>>
>>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>>occasion (maybe
>>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>>The engine
>>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>>just drop
>>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>>side of
>>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>>of
>>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>>continue
>>>>>>>with no problem.
>>>>>>>
>>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>>down to a
>>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>>ahead and
>>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>>bad gas,
>>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>>fuel
>>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>>or a
>>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>>Any other
>>>>>>>ideas??
>>>>>>>
>>>>>>>Thanks for your help.
>>>>>>>
>>>>>>>Kelly
>>>>>>>98TJ
>>>>>>>2" suspension
>>>>>>>1" body
>>>>>>>truetrak in dana 35
>>>>>>>32" Super Swampers
>>>>>>>
>>>>>>
>>>>>
>
>
ignorance, but what and where is the TPS? I really need to invest in a Jeep
shop manual:-)I hate Chiltons and Hanes books and to be honest i haven't even
seen one of those available for the 98 wrangler.
Kelly
In article <9vWaf.990$4C5.432381@twister.southeast.rr.com>, Cal says...
>
>try unplugging the TPS several times. It may just need a bit of oxidation
>removal from the pins...
>
>cal
>
>"jbjeep" <jbjeep@saw.net> wrote in message
>news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com.. .
>> You might also want to check the TPS.
>>
>> This is a problem that some of us have been having off and on. As far as
>> I know, no
>> one who has had it (who has the original engine) has ever truely figured
>> out the
>> problem. It hardly ever will do it for the shop. You have to have the
>> scanners
>> hooked up and running when it does for them to see it.
>>
>> On mine, which does NOT have the original engine, we ended up having to
>> clock the
>> distributor to stop this problem. The shop thinks it was either the wrong
>> crank or
>> the wrong cam for the engine...thats what I get for going with a cheap
>> rebuilt. My
>> rig litteraly spent months in the shop while they tried to figure it out.
>>
>>
>>
>> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
>> wrote:
>>
>>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>>the camshaft position sensor should be the next logical step. It's
>>>>mounted inside the distributor, just underneath the plastic shield
>>>>underneath the distributor cap.
>>>>
>>>>Jerry
>>>>
>>>>Kelly wrote:
>>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>>> first
>>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>>> still
>>>>> persists. I did save the old one so at least i have a spare now.
>>>>>
>>>>> Regards, Kelly
>>>>>
>>>>>
>>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>>
>>>>>>Maybe the cam position sensor?
>>>>>>
>>>>>>Kelly wrote:
>>>>>>
>>>>>>>Hi,
>>>>>>>
>>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>>
>>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>>occasion (maybe
>>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>>The engine
>>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>>just drop
>>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>>side of
>>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>>of
>>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>>continue
>>>>>>>with no problem.
>>>>>>>
>>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>>down to a
>>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>>ahead and
>>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>>bad gas,
>>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>>fuel
>>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>>or a
>>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>>Any other
>>>>>>>ideas??
>>>>>>>
>>>>>>>Thanks for your help.
>>>>>>>
>>>>>>>Kelly
>>>>>>>98TJ
>>>>>>>2" suspension
>>>>>>>1" body
>>>>>>>truetrak in dana 35
>>>>>>>32" Super Swampers
>>>>>>>
>>>>>>
>>>>>
>
>
11-05-2005, 01:48 AM
#28
Guest
Posts: n/a
Re: Odd problem with 98 TJ
Thanks Cal, that sounds like an easy and inexpensive thing to try. pardon my
ignorance, but what and where is the TPS? I really need to invest in a Jeep
shop manual:-)I hate Chiltons and Hanes books and to be honest i haven't even
seen one of those available for the 98 wrangler.
Kelly
In article <9vWaf.990$4C5.432381@twister.southeast.rr.com>, Cal says...
>
>try unplugging the TPS several times. It may just need a bit of oxidation
>removal from the pins...
>
>cal
>
>"jbjeep" <jbjeep@saw.net> wrote in message
>news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com.. .
>> You might also want to check the TPS.
>>
>> This is a problem that some of us have been having off and on. As far as
>> I know, no
>> one who has had it (who has the original engine) has ever truely figured
>> out the
>> problem. It hardly ever will do it for the shop. You have to have the
>> scanners
>> hooked up and running when it does for them to see it.
>>
>> On mine, which does NOT have the original engine, we ended up having to
>> clock the
>> distributor to stop this problem. The shop thinks it was either the wrong
>> crank or
>> the wrong cam for the engine...thats what I get for going with a cheap
>> rebuilt. My
>> rig litteraly spent months in the shop while they tried to figure it out.
>>
>>
>>
>> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
>> wrote:
>>
>>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>>the camshaft position sensor should be the next logical step. It's
>>>>mounted inside the distributor, just underneath the plastic shield
>>>>underneath the distributor cap.
>>>>
>>>>Jerry
>>>>
>>>>Kelly wrote:
>>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>>> first
>>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>>> still
>>>>> persists. I did save the old one so at least i have a spare now.
>>>>>
>>>>> Regards, Kelly
>>>>>
>>>>>
>>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>>
>>>>>>Maybe the cam position sensor?
>>>>>>
>>>>>>Kelly wrote:
>>>>>>
>>>>>>>Hi,
>>>>>>>
>>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>>
>>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>>occasion (maybe
>>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>>The engine
>>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>>just drop
>>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>>side of
>>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>>of
>>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>>continue
>>>>>>>with no problem.
>>>>>>>
>>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>>down to a
>>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>>ahead and
>>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>>bad gas,
>>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>>fuel
>>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>>or a
>>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>>Any other
>>>>>>>ideas??
>>>>>>>
>>>>>>>Thanks for your help.
>>>>>>>
>>>>>>>Kelly
>>>>>>>98TJ
>>>>>>>2" suspension
>>>>>>>1" body
>>>>>>>truetrak in dana 35
>>>>>>>32" Super Swampers
>>>>>>>
>>>>>>
>>>>>
>
>
ignorance, but what and where is the TPS? I really need to invest in a Jeep
shop manual:-)I hate Chiltons and Hanes books and to be honest i haven't even
seen one of those available for the 98 wrangler.
Kelly
In article <9vWaf.990$4C5.432381@twister.southeast.rr.com>, Cal says...
>
>try unplugging the TPS several times. It may just need a bit of oxidation
>removal from the pins...
>
>cal
>
>"jbjeep" <jbjeep@saw.net> wrote in message
>news:5cmdm1t2gf4nirq3cd40nurlf0ebsdp048@4ax.com.. .
>> You might also want to check the TPS.
>>
>> This is a problem that some of us have been having off and on. As far as
>> I know, no
>> one who has had it (who has the original engine) has ever truely figured
>> out the
>> problem. It hardly ever will do it for the shop. You have to have the
>> scanners
>> hooked up and running when it does for them to see it.
>>
>> On mine, which does NOT have the original engine, we ended up having to
>> clock the
>> distributor to stop this problem. The shop thinks it was either the wrong
>> crank or
>> the wrong cam for the engine...thats what I get for going with a cheap
>> rebuilt. My
>> rig litteraly spent months in the shop while they tried to figure it out.
>>
>>
>>
>> On Mon, 31 Oct 2005 15:05:38 -0800, Jerry Bransford <jerrypb@***.net>
>> wrote:
>>
>>>>Yes I know you replaced the crankshaft position sensor, I was suggesting
>>>>the camshaft position sensor should be the next logical step. It's
>>>>mounted inside the distributor, just underneath the plastic shield
>>>>underneath the distributor cap.
>>>>
>>>>Jerry
>>>>
>>>>Kelly wrote:
>>>>> Hi Jerry, That's what i thoought at first, so as i said, that was the
>>>>> first
>>>>> thing I replaced. I have a spanking new CPS in there, but the problem
>>>>> still
>>>>> persists. I did save the old one so at least i have a spare now.
>>>>>
>>>>> Regards, Kelly
>>>>>
>>>>>
>>>>> In article <qMs9f.16302$MN6.11681@fed1read04>, Jerry Bransford says...
>>>>>
>>>>>>Maybe the cam position sensor?
>>>>>>
>>>>>>Kelly wrote:
>>>>>>
>>>>>>>Hi,
>>>>>>>
>>>>>>>I have a 98TJ 4.0L with 5 speed. 97,000 miles
>>>>>>>
>>>>>>>I have an intermittant problem the engine. It only happens on
>>>>>>>occasion (maybe
>>>>>>>once a week) and ONLY after 30+ minutes of sustained highway speeds.
>>>>>>>The engine
>>>>>>>will sudenly begin to stutter, and keeping the foot in the gas will
>>>>>>>just drop
>>>>>>>the revs faster. I just have to press in the clutch and coast to the
>>>>>>>side of
>>>>>>>the road. Once off the road, it will idle smooth as silk, no danger
>>>>>>>of
>>>>>>>stalling, and if I sit there idleing for just a minute or two I can
>>>>>>>continue
>>>>>>>with no problem.
>>>>>>>
>>>>>>>I had a similar problem a couple of years ago and finally tracked it
>>>>>>>down to a
>>>>>>>bad Crank Position sensor. Since this problem was so similar, I went
>>>>>>>ahead and
>>>>>>>put a new CPS in but the problem still remains. I thought it might be
>>>>>>>bad gas,
>>>>>>>but several tanks from differant locations and a couple of bottles of
>>>>>>>fuel
>>>>>>>system cleaner have not fixed it. Although I would think that bad gas
>>>>>>>or a
>>>>>>>clogged filter would give a more consistant, and sustained symptom.
>>>>>>>Any other
>>>>>>>ideas??
>>>>>>>
>>>>>>>Thanks for your help.
>>>>>>>
>>>>>>>Kelly
>>>>>>>98TJ
>>>>>>>2" suspension
>>>>>>>1" body
>>>>>>>truetrak in dana 35
>>>>>>>32" Super Swampers
>>>>>>>
>>>>>>
>>>>>
>
>
11-05-2005, 05:47 AM
#29
Guest
Posts: n/a
Re: Odd problem with 98 TJ
About half the books call it a Crankshaft Position Sensor:
http://www.----------.com/cps.jpg
God Bless America, Bill O|||||||O
mailto:--------------------
Kelly wrote:
>
> Thanks Cal, that sounds like an easy and inexpensive thing to try. pardon my
> ignorance, but what and where is the TPS? I really need to invest in a Jeep
> shop manual:-)I hate Chiltons and Hanes books and to be honest i haven't even
> seen one of those available for the 98 wrangler.
>
> Kelly
http://www.----------.com/cps.jpg
God Bless America, Bill O|||||||O
mailto:--------------------
Kelly wrote:
>
> Thanks Cal, that sounds like an easy and inexpensive thing to try. pardon my
> ignorance, but what and where is the TPS? I really need to invest in a Jeep
> shop manual:-)I hate Chiltons and Hanes books and to be honest i haven't even
> seen one of those available for the 98 wrangler.
>
> Kelly
11-05-2005, 05:47 AM
#30
Guest
Posts: n/a
Re: Odd problem with 98 TJ
About half the books call it a Crankshaft Position Sensor:
http://www.----------.com/cps.jpg
God Bless America, Bill O|||||||O
mailto:--------------------
Kelly wrote:
>
> Thanks Cal, that sounds like an easy and inexpensive thing to try. pardon my
> ignorance, but what and where is the TPS? I really need to invest in a Jeep
> shop manual:-)I hate Chiltons and Hanes books and to be honest i haven't even
> seen one of those available for the 98 wrangler.
>
> Kelly
http://www.----------.com/cps.jpg
God Bless America, Bill O|||||||O
mailto:--------------------
Kelly wrote:
>
> Thanks Cal, that sounds like an easy and inexpensive thing to try. pardon my
> ignorance, but what and where is the TPS? I really need to invest in a Jeep
> shop manual:-)I hate Chiltons and Hanes books and to be honest i haven't even
> seen one of those available for the 98 wrangler.
>
> Kelly