High Idle
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Joined: Aug 2021
Posts: 6
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From: Riverview Florida
Year: 1991
Model: Cherokee (XJ)
Engine: 4.0
High Idle
91 XJ 270000 Miles
had high idle, Replaced idle air control, Throttle position sensor and Throttle body gasket.
Fully cleaned throttle body replaced.
Still doing the same thing.
Vacume in thr green.
Any suggestions would be greatly appreciated.
had high idle, Replaced idle air control, Throttle position sensor and Throttle body gasket.
Fully cleaned throttle body replaced.
Still doing the same thing.
Vacume in thr green.
Any suggestions would be greatly appreciated.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
91 TPS isn't adjustable. Only Renix 1987 to 1990.
I agree with checking for vacuum leaks.
Never hurts to make sure intake manifold bolts are snug.
I agree with checking for vacuum leaks.
Never hurts to make sure intake manifold bolts are snug.
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