Re: engine stalling and hesitating after warmed up.
 

Hi Elijah:

Wow - this sounds a lot like my post... See my recent post:
"Help with 1989 Cherokee XJ LTD rough idle and acceleration"

My problem also started after the truck sat outside for about a month
without running.

I'm still trying to solve my problem.
--

<elijahs@gmail.com> wrote in message
news:1164418779.816959.120780@j72g2000cwa.googlegr oups.com...
>
> Ok - 1992 Cherokee Sport 4.0L, auto, 110k miles.
>
> Engine stalls and runs poorly AFTER heating up.
>
> I can often get it to idle or run at just above idle just fine (that's
> how I got it home) but too much throttle and it keeps choking, then
> catching, then choking again. There's no place on the throttle range
> that runs well, which makes me *not* suspect the TPS - should I? If I
> floor it, it runs at low RPMs but sounds horrible (and no power).
>
> I changed the fuel filter - no change. Since it runs fine until hot, I
> don't suspect the fuel pump - should I?
>
> This begin occurring immediately after it sat for a few months while I
> was out of town, in a humid tropical environment. It's hell on cars
> here and I'm suspecting one of the sensors is out of whack but I don't
> know which one to look at first.
>
> Oh, and the only ODB code is 1-2-5-5. Battery disconnected.
>
> Any help is terribly appreciated!
>
> Elijah
>

Re: engine stalling and hesitating after warmed up.
 

Hi Elijah:

Wow - this sounds a lot like my post... See my recent post:
"Help with 1989 Cherokee XJ LTD rough idle and acceleration"

My problem also started after the truck sat outside for about a month
without running.

I'm still trying to solve my problem.
--

<elijahs@gmail.com> wrote in message
news:1164418779.816959.120780@j72g2000cwa.googlegr oups.com...
>
> Ok - 1992 Cherokee Sport 4.0L, auto, 110k miles.
>
> Engine stalls and runs poorly AFTER heating up.
>
> I can often get it to idle or run at just above idle just fine (that's
> how I got it home) but too much throttle and it keeps choking, then
> catching, then choking again. There's no place on the throttle range
> that runs well, which makes me *not* suspect the TPS - should I? If I
> floor it, it runs at low RPMs but sounds horrible (and no power).
>
> I changed the fuel filter - no change. Since it runs fine until hot, I
> don't suspect the fuel pump - should I?
>
> This begin occurring immediately after it sat for a few months while I
> was out of town, in a humid tropical environment. It's hell on cars
> here and I'm suspecting one of the sensors is out of whack but I don't
> know which one to look at first.
>
> Oh, and the only ODB code is 1-2-5-5. Battery disconnected.
>
> Any help is terribly appreciated!
>
> Elijah
>

Re: engine stalling and hesitating after warmed up.
 

Although a TPS can fail only at some rotations, it can fail altogether too.
It sure is easy to change them, and they don't cost much. I've had two go
bad on me - one on a 97 TJ in less than 3 years service, and one on a 2000
JGC in less that 6 years service.

You can also use a common ohm meter to test the TPS, but it can be hard to
find bad spots this way.

Paul Nelson


in article S6mbh.3053$YX1.77@newsfe23.lga, NT at noThanks@hotmail.com wrote
on 11/29/06 2:31 PM:

>> I can often get it to idle or run at just above idle just fine (that's
>> how I got it home) but too much throttle and it keeps choking, then
>> catching, then choking again. There's no place on the throttle range
>> that runs well, which makes me *not* suspect the TPS - should I? If I
>> floor it, it runs at low RPMs but sounds horrible (and no power).

Re: engine stalling and hesitating after warmed up.
 

Although a TPS can fail only at some rotations, it can fail altogether too.
It sure is easy to change them, and they don't cost much. I've had two go
bad on me - one on a 97 TJ in less than 3 years service, and one on a 2000
JGC in less that 6 years service.

You can also use a common ohm meter to test the TPS, but it can be hard to
find bad spots this way.

Paul Nelson


in article S6mbh.3053$YX1.77@newsfe23.lga, NT at noThanks@hotmail.com wrote
on 11/29/06 2:31 PM:

>> I can often get it to idle or run at just above idle just fine (that's
>> how I got it home) but too much throttle and it keeps choking, then
>> catching, then choking again. There's no place on the throttle range
>> that runs well, which makes me *not* suspect the TPS - should I? If I
>> floor it, it runs at low RPMs but sounds horrible (and no power).

Re: engine stalling and hesitating after warmed up.
 

Although a TPS can fail only at some rotations, it can fail altogether too.
It sure is easy to change them, and they don't cost much. I've had two go
bad on me - one on a 97 TJ in less than 3 years service, and one on a 2000
JGC in less that 6 years service.

You can also use a common ohm meter to test the TPS, but it can be hard to
find bad spots this way.

Paul Nelson


in article S6mbh.3053$YX1.77@newsfe23.lga, NT at noThanks@hotmail.com wrote
on 11/29/06 2:31 PM:

>> I can often get it to idle or run at just above idle just fine (that's
>> how I got it home) but too much throttle and it keeps choking, then
>> catching, then choking again. There's no place on the throttle range
>> that runs well, which makes me *not* suspect the TPS - should I? If I
>> floor it, it runs at low RPMs but sounds horrible (and no power).

Re: engine stalling and hesitating after warmed up.
 

HI folks - I got my truck working good. It ended up to seemingly be
just a bad battery connection! I accidentally discharged my battery
(leaving the truck on after a troubleshooting session) and when I
attached my charger to the battery terminals, the charger registered no
battery. Curious, I pulled the terminals and attached the charger
directly. This worked, and charged the battery, and made me
suspicious. So I took one of those little wire-brush battery terminals
to the battery and lo, the car started and ran and hasn't had any
problems since (except the new "too cool" code I'm getting, *sigh*).

I felt kind of stupid, after all that, it was just the battery. it
didn't look corroded at *all* and I had pulled and replaced the
terminals already. it needed to be brushed.

I had ordered the CPS already, and so I put it in last night anyway
(the old one had tested bad with the ohmmeter). I found it a real
bitch to get at - finally came at it from below and behind with two
long ratchet extensions on my handle, and my other hand coming up in
front of the bellhousing to help position the socket. Once the two
bolt were broken free it was pretty easy, though.

next: new springs all around, complete new front breaks, new thermostat
& coolant sensor.


thanks, everyone!



NT wrote:
> Hi Elijah:
>
> Wow - this sounds a lot like my post... See my recent post:
> "Help with 1989 Cherokee XJ LTD rough idle and acceleration"
>
> My problem also started after the truck sat outside for about a month
> without running.
>
> I'm still trying to solve my problem.
> --
>
> <elijahs@gmail.com> wrote in message
> news:1164418779.816959.120780@j72g2000cwa.googlegr oups.com...
> >
> > Ok - 1992 Cherokee Sport 4.0L, auto, 110k miles.
> >
> > Engine stalls and runs poorly AFTER heating up.
> >
> > I can often get it to idle or run at just above idle just fine (that's
> > how I got it home) but too much throttle and it keeps choking, then
> > catching, then choking again. There's no place on the throttle range
> > that runs well, which makes me *not* suspect the TPS - should I? If I
> > floor it, it runs at low RPMs but sounds horrible (and no power).
> >
> > I changed the fuel filter - no change. Since it runs fine until hot, I
> > don't suspect the fuel pump - should I?
> >
> > This begin occurring immediately after it sat for a few months while I
> > was out of town, in a humid tropical environment. It's hell on cars
> > here and I'm suspecting one of the sensors is out of whack but I don't
> > know which one to look at first.
> >
> > Oh, and the only ODB code is 1-2-5-5. Battery disconnected.
> >
> > Any help is terribly appreciated!
> >
> > Elijah
> >

Re: engine stalling and hesitating after warmed up.
 

HI folks - I got my truck working good. It ended up to seemingly be
just a bad battery connection! I accidentally discharged my battery
(leaving the truck on after a troubleshooting session) and when I
attached my charger to the battery terminals, the charger registered no
battery. Curious, I pulled the terminals and attached the charger
directly. This worked, and charged the battery, and made me
suspicious. So I took one of those little wire-brush battery terminals
to the battery and lo, the car started and ran and hasn't had any
problems since (except the new "too cool" code I'm getting, *sigh*).

I felt kind of stupid, after all that, it was just the battery. it
didn't look corroded at *all* and I had pulled and replaced the
terminals already. it needed to be brushed.

I had ordered the CPS already, and so I put it in last night anyway
(the old one had tested bad with the ohmmeter). I found it a real
bitch to get at - finally came at it from below and behind with two
long ratchet extensions on my handle, and my other hand coming up in
front of the bellhousing to help position the socket. Once the two
bolt were broken free it was pretty easy, though.

next: new springs all around, complete new front breaks, new thermostat
& coolant sensor.


thanks, everyone!



NT wrote:
> Hi Elijah:
>
> Wow - this sounds a lot like my post... See my recent post:
> "Help with 1989 Cherokee XJ LTD rough idle and acceleration"
>
> My problem also started after the truck sat outside for about a month
> without running.
>
> I'm still trying to solve my problem.
> --
>
> <elijahs@gmail.com> wrote in message
> news:1164418779.816959.120780@j72g2000cwa.googlegr oups.com...
> >
> > Ok - 1992 Cherokee Sport 4.0L, auto, 110k miles.
> >
> > Engine stalls and runs poorly AFTER heating up.
> >
> > I can often get it to idle or run at just above idle just fine (that's
> > how I got it home) but too much throttle and it keeps choking, then
> > catching, then choking again. There's no place on the throttle range
> > that runs well, which makes me *not* suspect the TPS - should I? If I
> > floor it, it runs at low RPMs but sounds horrible (and no power).
> >
> > I changed the fuel filter - no change. Since it runs fine until hot, I
> > don't suspect the fuel pump - should I?
> >
> > This begin occurring immediately after it sat for a few months while I
> > was out of town, in a humid tropical environment. It's hell on cars
> > here and I'm suspecting one of the sensors is out of whack but I don't
> > know which one to look at first.
> >
> > Oh, and the only ODB code is 1-2-5-5. Battery disconnected.
> >
> > Any help is terribly appreciated!
> >
> > Elijah
> >

Re: engine stalling and hesitating after warmed up.
 

HI folks - I got my truck working good. It ended up to seemingly be
just a bad battery connection! I accidentally discharged my battery
(leaving the truck on after a troubleshooting session) and when I
attached my charger to the battery terminals, the charger registered no
battery. Curious, I pulled the terminals and attached the charger
directly. This worked, and charged the battery, and made me
suspicious. So I took one of those little wire-brush battery terminals
to the battery and lo, the car started and ran and hasn't had any
problems since (except the new "too cool" code I'm getting, *sigh*).

I felt kind of stupid, after all that, it was just the battery. it
didn't look corroded at *all* and I had pulled and replaced the
terminals already. it needed to be brushed.

I had ordered the CPS already, and so I put it in last night anyway
(the old one had tested bad with the ohmmeter). I found it a real
bitch to get at - finally came at it from below and behind with two
long ratchet extensions on my handle, and my other hand coming up in
front of the bellhousing to help position the socket. Once the two
bolt were broken free it was pretty easy, though.

next: new springs all around, complete new front breaks, new thermostat
& coolant sensor.


thanks, everyone!



NT wrote:
> Hi Elijah:
>
> Wow - this sounds a lot like my post... See my recent post:
> "Help with 1989 Cherokee XJ LTD rough idle and acceleration"
>
> My problem also started after the truck sat outside for about a month
> without running.
>
> I'm still trying to solve my problem.
> --
>
> <elijahs@gmail.com> wrote in message
> news:1164418779.816959.120780@j72g2000cwa.googlegr oups.com...
> >
> > Ok - 1992 Cherokee Sport 4.0L, auto, 110k miles.
> >
> > Engine stalls and runs poorly AFTER heating up.
> >
> > I can often get it to idle or run at just above idle just fine (that's
> > how I got it home) but too much throttle and it keeps choking, then
> > catching, then choking again. There's no place on the throttle range
> > that runs well, which makes me *not* suspect the TPS - should I? If I
> > floor it, it runs at low RPMs but sounds horrible (and no power).
> >
> > I changed the fuel filter - no change. Since it runs fine until hot, I
> > don't suspect the fuel pump - should I?
> >
> > This begin occurring immediately after it sat for a few months while I
> > was out of town, in a humid tropical environment. It's hell on cars
> > here and I'm suspecting one of the sensors is out of whack but I don't
> > know which one to look at first.
> >
> > Oh, and the only ODB code is 1-2-5-5. Battery disconnected.
> >
> > Any help is terribly appreciated!
> >
> > Elijah
> >

Re: engine stalling and hesitating after warmed up.
 

Thanks for the follow up. It's nice to know the outcomes. Jeeps are
really picky about battery power. Our Cherokee can have enough power to
turn the starter but not enough to fire the spark off at the same time
if the battery is too low or has a poor connection.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

elijahs@gmail.com wrote:
>
> HI folks - I got my truck working good. It ended up to seemingly be
> just a bad battery connection! I accidentally discharged my battery
> (leaving the truck on after a troubleshooting session) and when I
> attached my charger to the battery terminals, the charger registered no
> battery. Curious, I pulled the terminals and attached the charger
> directly. This worked, and charged the battery, and made me
> suspicious. So I took one of those little wire-brush battery terminals
> to the battery and lo, the car started and ran and hasn't had any
> problems since (except the new "too cool" code I'm getting, *sigh*).
>
> I felt kind of stupid, after all that, it was just the battery. it
> didn't look corroded at *all* and I had pulled and replaced the
> terminals already. it needed to be brushed.
>
> I had ordered the CPS already, and so I put it in last night anyway
> (the old one had tested bad with the ohmmeter). I found it a real
> bitch to get at - finally came at it from below and behind with two
> long ratchet extensions on my handle, and my other hand coming up in
> front of the bellhousing to help position the socket. Once the two
> bolt were broken free it was pretty easy, though.
>
> next: new springs all around, complete new front breaks, new thermostat
> & coolant sensor.
>
> thanks, everyone!
>
> NT wrote:
> > Hi Elijah:
> >
> > Wow - this sounds a lot like my post... See my recent post:
> > "Help with 1989 Cherokee XJ LTD rough idle and acceleration"
> >
> > My problem also started after the truck sat outside for about a month
> > without running.
> >
> > I'm still trying to solve my problem.
> > --
> >
> > <elijahs@gmail.com> wrote in message
> > news:1164418779.816959.120780@j72g2000cwa.googlegr oups.com...
> > >
> > > Ok - 1992 Cherokee Sport 4.0L, auto, 110k miles.
> > >
> > > Engine stalls and runs poorly AFTER heating up.
> > >
> > > I can often get it to idle or run at just above idle just fine (that's
> > > how I got it home) but too much throttle and it keeps choking, then
> > > catching, then choking again. There's no place on the throttle range
> > > that runs well, which makes me *not* suspect the TPS - should I? If I
> > > floor it, it runs at low RPMs but sounds horrible (and no power).
> > >
> > > I changed the fuel filter - no change. Since it runs fine until hot, I
> > > don't suspect the fuel pump - should I?
> > >
> > > This begin occurring immediately after it sat for a few months while I
> > > was out of town, in a humid tropical environment. It's hell on cars
> > > here and I'm suspecting one of the sensors is out of whack but I don't
> > > know which one to look at first.
> > >
> > > Oh, and the only ODB code is 1-2-5-5. Battery disconnected.
> > >
> > > Any help is terribly appreciated!
> > >
> > > Elijah
> > >

Re: engine stalling and hesitating after warmed up.
 

Thanks for the follow up. It's nice to know the outcomes. Jeeps are
really picky about battery power. Our Cherokee can have enough power to
turn the starter but not enough to fire the spark off at the same time
if the battery is too low or has a poor connection.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

elijahs@gmail.com wrote:
>
> HI folks - I got my truck working good. It ended up to seemingly be
> just a bad battery connection! I accidentally discharged my battery
> (leaving the truck on after a troubleshooting session) and when I
> attached my charger to the battery terminals, the charger registered no
> battery. Curious, I pulled the terminals and attached the charger
> directly. This worked, and charged the battery, and made me
> suspicious. So I took one of those little wire-brush battery terminals
> to the battery and lo, the car started and ran and hasn't had any
> problems since (except the new "too cool" code I'm getting, *sigh*).
>
> I felt kind of stupid, after all that, it was just the battery. it
> didn't look corroded at *all* and I had pulled and replaced the
> terminals already. it needed to be brushed.
>
> I had ordered the CPS already, and so I put it in last night anyway
> (the old one had tested bad with the ohmmeter). I found it a real
> bitch to get at - finally came at it from below and behind with two
> long ratchet extensions on my handle, and my other hand coming up in
> front of the bellhousing to help position the socket. Once the two
> bolt were broken free it was pretty easy, though.
>
> next: new springs all around, complete new front breaks, new thermostat
> & coolant sensor.
>
> thanks, everyone!
>
> NT wrote:
> > Hi Elijah:
> >
> > Wow - this sounds a lot like my post... See my recent post:
> > "Help with 1989 Cherokee XJ LTD rough idle and acceleration"
> >
> > My problem also started after the truck sat outside for about a month
> > without running.
> >
> > I'm still trying to solve my problem.
> > --
> >
> > <elijahs@gmail.com> wrote in message
> > news:1164418779.816959.120780@j72g2000cwa.googlegr oups.com...
> > >
> > > Ok - 1992 Cherokee Sport 4.0L, auto, 110k miles.
> > >
> > > Engine stalls and runs poorly AFTER heating up.
> > >
> > > I can often get it to idle or run at just above idle just fine (that's
> > > how I got it home) but too much throttle and it keeps choking, then
> > > catching, then choking again. There's no place on the throttle range
> > > that runs well, which makes me *not* suspect the TPS - should I? If I
> > > floor it, it runs at low RPMs but sounds horrible (and no power).
> > >
> > > I changed the fuel filter - no change. Since it runs fine until hot, I
> > > don't suspect the fuel pump - should I?
> > >
> > > This begin occurring immediately after it sat for a few months while I
> > > was out of town, in a humid tropical environment. It's hell on cars
> > > here and I'm suspecting one of the sensors is out of whack but I don't
> > > know which one to look at first.
> > >
> > > Oh, and the only ODB code is 1-2-5-5. Battery disconnected.
> > >
> > > Any help is terribly appreciated!
> > >
> > > Elijah
> > >