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1992 4.0 auto stalling issue

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Old 04-08-2018, 11:14 AM
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Year: 1992 2dr Sport 2wd & 1992 4dr Laredo 4x4
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Engine: 4.0 liter H.O.
Question 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?
Old 04-08-2018, 11:25 AM
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Year: 1997
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Engine: 4.0L
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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.
Old 04-09-2018, 03:18 PM
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Year: 1992 2dr Sport 2wd & 1992 4dr Laredo 4x4
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no vac leaks.....any other ideas?
Old 04-09-2018, 04:26 PM
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Remove and clean the engine grounds.
Old 04-09-2018, 05:12 PM
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Ever clean the throttle body?
Old 04-10-2018, 03:41 PM
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throttle body clean, grounds good, thinking a bad "new" mapp sensor.......will know tomorrow, thanks
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