Hesitating XJ
 

Help. We have an '89 XJ with the 4.0 that we keep at our winter home
in Mexico and it has recently started hesitating at light load in
overdrive. Feels like the ignition is completely turned off for just
an instant. It may happen once or twice in 20 miles or it may do it
every minute or so. If we shift out of overdrive and increase the
revs a bit, it either doesn't do it or we can't feel it because of the
increased engine speed. I've replaced the plugs, wires, cap and
rotor, and run through two cans of injection cleaner and checked all
the vital connectors, including the one to the CPS, which has given me
trouble in the past. I'm leaving for Mexico this week and would like
to take down with me any replacement parts that might solve the
problem. Anyone run across this phenomenon before?

Thanks in advance,

Re: Hesitating XJ
 

Take another new Crankcase Position Sensor, with you:
http://www.off-road.com/jeep/cheroke...tdcsensor.html
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Rod Frazier wrote:
>
> Help. We have an '89 XJ with the 4.0 that we keep at our winter home
> in Mexico and it has recently started hesitating at light load in
> overdrive. Feels like the ignition is completely turned off for just
> an instant. It may happen once or twice in 20 miles or it may do it
> every minute or so. If we shift out of overdrive and increase the
> revs a bit, it either doesn't do it or we can't feel it because of the
> increased engine speed. I've replaced the plugs, wires, cap and
> rotor, and run through two cans of injection cleaner and checked all
> the vital connectors, including the one to the CPS, which has given me
> trouble in the past. I'm leaving for Mexico this week and would like
> to take down with me any replacement parts that might solve the
> problem. Anyone run across this phenomenon before?
>
> Thanks in advance,

Re: Hesitating XJ
 

Take another new Crankcase Position Sensor, with you:
http://www.off-road.com/jeep/cheroke...tdcsensor.html
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Rod Frazier wrote:
>
> Help. We have an '89 XJ with the 4.0 that we keep at our winter home
> in Mexico and it has recently started hesitating at light load in
> overdrive. Feels like the ignition is completely turned off for just
> an instant. It may happen once or twice in 20 miles or it may do it
> every minute or so. If we shift out of overdrive and increase the
> revs a bit, it either doesn't do it or we can't feel it because of the
> increased engine speed. I've replaced the plugs, wires, cap and
> rotor, and run through two cans of injection cleaner and checked all
> the vital connectors, including the one to the CPS, which has given me
> trouble in the past. I'm leaving for Mexico this week and would like
> to take down with me any replacement parts that might solve the
> problem. Anyone run across this phenomenon before?
>
> Thanks in advance,

Re: Hesitating XJ
 

Take another new Crankcase Position Sensor, with you:
http://www.off-road.com/jeep/cheroke...tdcsensor.html
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Rod Frazier wrote:
>
> Help. We have an '89 XJ with the 4.0 that we keep at our winter home
> in Mexico and it has recently started hesitating at light load in
> overdrive. Feels like the ignition is completely turned off for just
> an instant. It may happen once or twice in 20 miles or it may do it
> every minute or so. If we shift out of overdrive and increase the
> revs a bit, it either doesn't do it or we can't feel it because of the
> increased engine speed. I've replaced the plugs, wires, cap and
> rotor, and run through two cans of injection cleaner and checked all
> the vital connectors, including the one to the CPS, which has given me
> trouble in the past. I'm leaving for Mexico this week and would like
> to take down with me any replacement parts that might solve the
> problem. Anyone run across this phenomenon before?
>
> Thanks in advance,

Re: Hesitating XJ
 

L.W.(ßill) ------ III <----------@cox.net> wrote in message news:<3F8AE2BB.FF5D63FB@cox.net>...
> Take another new Crankcase Position Sensor, with you:
> http://www.off-road.com/jeep/cheroke...tdcsensor.html
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Rod Frazier wrote:
> >
> > Help. We have an '89 XJ with the 4.0 that we keep at our winter home
> > in Mexico and it has recently started hesitating at light load in
> > overdrive. Feels like the ignition is completely turned off for just
> > an instant. It may happen once or twice in 20 miles or it may do it
> > every minute or so. If we shift out of overdrive and increase the
> > revs a bit, it either doesn't do it or we can't feel it because of the
> > increased engine speed. I've replaced the plugs, wires, cap and
> > rotor, and run through two cans of injection cleaner and checked all
> > the vital connectors, including the one to the CPS, which has given me
> > trouble in the past. I'm leaving for Mexico this week and would like
> > to take down with me any replacement parts that might solve the
> > problem. Anyone run across this phenomenon before?
> >
> > Thanks in advance,

Thanks - Probably a good idea.

Re: Hesitating XJ
 

L.W.(ßill) ------ III <----------@cox.net> wrote in message news:<3F8AE2BB.FF5D63FB@cox.net>...
> Take another new Crankcase Position Sensor, with you:
> http://www.off-road.com/jeep/cheroke...tdcsensor.html
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Rod Frazier wrote:
> >
> > Help. We have an '89 XJ with the 4.0 that we keep at our winter home
> > in Mexico and it has recently started hesitating at light load in
> > overdrive. Feels like the ignition is completely turned off for just
> > an instant. It may happen once or twice in 20 miles or it may do it
> > every minute or so. If we shift out of overdrive and increase the
> > revs a bit, it either doesn't do it or we can't feel it because of the
> > increased engine speed. I've replaced the plugs, wires, cap and
> > rotor, and run through two cans of injection cleaner and checked all
> > the vital connectors, including the one to the CPS, which has given me
> > trouble in the past. I'm leaving for Mexico this week and would like
> > to take down with me any replacement parts that might solve the
> > problem. Anyone run across this phenomenon before?
> >
> > Thanks in advance,

Thanks - Probably a good idea.

Re: Hesitating XJ
 

L.W.(ßill) ------ III <----------@cox.net> wrote in message news:<3F8AE2BB.FF5D63FB@cox.net>...
> Take another new Crankcase Position Sensor, with you:
> http://www.off-road.com/jeep/cheroke...tdcsensor.html
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Rod Frazier wrote:
> >
> > Help. We have an '89 XJ with the 4.0 that we keep at our winter home
> > in Mexico and it has recently started hesitating at light load in
> > overdrive. Feels like the ignition is completely turned off for just
> > an instant. It may happen once or twice in 20 miles or it may do it
> > every minute or so. If we shift out of overdrive and increase the
> > revs a bit, it either doesn't do it or we can't feel it because of the
> > increased engine speed. I've replaced the plugs, wires, cap and
> > rotor, and run through two cans of injection cleaner and checked all
> > the vital connectors, including the one to the CPS, which has given me
> > trouble in the past. I'm leaving for Mexico this week and would like
> > to take down with me any replacement parts that might solve the
> > problem. Anyone run across this phenomenon before?
> >
> > Thanks in advance,

Thanks - Probably a good idea.

Re: Hesitating XJ
 

On Mon, 13 Oct 2003 17:28:14 UTC elmangle@hotmail.com (Rod Frazier)
wrote:

> Help. We have an '89 XJ with the 4.0 that we keep at our winter home
> in Mexico and it has recently started hesitating at light load in
> overdrive. Feels like the ignition is completely turned off for just
> an instant. It may happen once or twice in 20 miles or it may do it
> every minute or so. If we shift out of overdrive and increase the
> revs a bit, it either doesn't do it or we can't feel it because of the
> increased engine speed. I've replaced the plugs, wires, cap and
> rotor, and run through two cans of injection cleaner and checked all
> the vital connectors, including the one to the CPS, which has given me
> trouble in the past. I'm leaving for Mexico this week and would like
> to take down with me any replacement parts that might solve the
> problem. Anyone run across this phenomenon before?

See if it does the same thing in 1st/2nd at low speed, light load -
about the same conditions you would get in a parking lot cruising
around looking for a parking spot. That was the final step on my 88
when I was trying to get it to run right and a new O2 sensor cured
that. If it's just under load, like high or overdrive when it's
pulling hard, Bill had the best idea: CPS and a real tuneup.

--
Will Honea <whonea@codenet.net>

Re: Hesitating XJ
 

On Mon, 13 Oct 2003 17:28:14 UTC elmangle@hotmail.com (Rod Frazier)
wrote:

> Help. We have an '89 XJ with the 4.0 that we keep at our winter home
> in Mexico and it has recently started hesitating at light load in
> overdrive. Feels like the ignition is completely turned off for just
> an instant. It may happen once or twice in 20 miles or it may do it
> every minute or so. If we shift out of overdrive and increase the
> revs a bit, it either doesn't do it or we can't feel it because of the
> increased engine speed. I've replaced the plugs, wires, cap and
> rotor, and run through two cans of injection cleaner and checked all
> the vital connectors, including the one to the CPS, which has given me
> trouble in the past. I'm leaving for Mexico this week and would like
> to take down with me any replacement parts that might solve the
> problem. Anyone run across this phenomenon before?

See if it does the same thing in 1st/2nd at low speed, light load -
about the same conditions you would get in a parking lot cruising
around looking for a parking spot. That was the final step on my 88
when I was trying to get it to run right and a new O2 sensor cured
that. If it's just under load, like high or overdrive when it's
pulling hard, Bill had the best idea: CPS and a real tuneup.

--
Will Honea <whonea@codenet.net>

Re: Hesitating XJ
 

On Mon, 13 Oct 2003 17:28:14 UTC elmangle@hotmail.com (Rod Frazier)
wrote:

> Help. We have an '89 XJ with the 4.0 that we keep at our winter home
> in Mexico and it has recently started hesitating at light load in
> overdrive. Feels like the ignition is completely turned off for just
> an instant. It may happen once or twice in 20 miles or it may do it
> every minute or so. If we shift out of overdrive and increase the
> revs a bit, it either doesn't do it or we can't feel it because of the
> increased engine speed. I've replaced the plugs, wires, cap and
> rotor, and run through two cans of injection cleaner and checked all
> the vital connectors, including the one to the CPS, which has given me
> trouble in the past. I'm leaving for Mexico this week and would like
> to take down with me any replacement parts that might solve the
> problem. Anyone run across this phenomenon before?

See if it does the same thing in 1st/2nd at low speed, light load -
about the same conditions you would get in a parking lot cruising
around looking for a parking spot. That was the final step on my 88
when I was trying to get it to run right and a new O2 sensor cured
that. If it's just under load, like high or overdrive when it's
pulling hard, Bill had the best idea: CPS and a real tuneup.

--
Will Honea <whonea@codenet.net>