Re: '91' XJ: fluctuating idle when at stop, in gear
 

That sounds like a dirty connection on the TPS. It has a connection to
the tranny. The plug just gets dirty and can be cleaned with a spray
contact cleaner. WD40 will work.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Doug wrote:
>
> The idle in my '91' XJ has been fluctuating by 500 RPM when I'm stopped in
> gear (auto trans). If I put the truck in neutral the idle
> fluctuation disappears. The auto-trans shifts fine and I recently (within
> the last year) refilled the auto trans fluid 4 times (to get out as much of
> the old fluid as possible) w/synthetic auto-trans fluid. Am I looking at
> serious problems here?
>
> --
> Remove nospam to email

Re: '91' XJ: fluctuating idle when at stop, in gear
 

That sounds like a dirty connection on the TPS. It has a connection to
the tranny. The plug just gets dirty and can be cleaned with a spray
contact cleaner. WD40 will work.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Doug wrote:
>
> The idle in my '91' XJ has been fluctuating by 500 RPM when I'm stopped in
> gear (auto trans). If I put the truck in neutral the idle
> fluctuation disappears. The auto-trans shifts fine and I recently (within
> the last year) refilled the auto trans fluid 4 times (to get out as much of
> the old fluid as possible) w/synthetic auto-trans fluid. Am I looking at
> serious problems here?
>
> --
> Remove nospam to email

Re: '91' XJ: fluctuating idle when at stop, in gear
 

That sounds like a dirty connection on the TPS. It has a connection to
the tranny. The plug just gets dirty and can be cleaned with a spray
contact cleaner. WD40 will work.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Doug wrote:
>
> The idle in my '91' XJ has been fluctuating by 500 RPM when I'm stopped in
> gear (auto trans). If I put the truck in neutral the idle
> fluctuation disappears. The auto-trans shifts fine and I recently (within
> the last year) refilled the auto trans fluid 4 times (to get out as much of
> the old fluid as possible) w/synthetic auto-trans fluid. Am I looking at
> serious problems here?
>
> --
> Remove nospam to email