1992 4.0 auto stalling issue
Thread Starter
Seasoned Member
Joined: Apr 2009
Posts: 330
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From: Nokomis FLA.
Year: 1992 2dr Sport 2wd & 1992 4dr Laredo 4x4
Model: Cherokee
Engine: 4.0 liter H.O.
1992 4.0 auto stalling issue
Jeep runs smooth until it doesn't wants to stall at stops & then revs high (1500rpm) then back to normal. replaced the idle control valve, throttle position sensor & map/bapp sensor & fuel filter. Cleaned the throttle body & replaced the air filter.....IDEAS?
CF Veteran
Joined: Dec 2015
Posts: 3,038
Likes: 338
From: PA
Year: 1997
Model: Cherokee
Engine: 4.0L
Possible vacuum leak. Check hoses and lines for breaks or loose fit. Check any and all rubber connections for the same. Pull them off and squeeze. If the rubber cracks, replace. Doublecheck the boot for the MAP sensor.
Thread Starter
Seasoned Member
Joined: Apr 2009
Posts: 330
Likes: 0
From: Nokomis FLA.
Year: 1992 2dr Sport 2wd & 1992 4dr Laredo 4x4
Model: Cherokee
Engine: 4.0 liter H.O.
throttle body clean, grounds good, thinking a bad "new" mapp sensor.......will know tomorrow, thanks
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