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Engine idle speed hunts when cold or at temp

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Old 04-21-2017 | 02:18 AM
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MtnGoat's Avatar
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From: NorCal
Year: 1992
Model: Cherokee
Engine: 4.0
Default Engine idle speed hunts when cold or at temp

Lately my 92 4.0 AT will change idle speed 200-500 RPM while stopped in Drive or Park.
With almost 190K on the clock should I just swap out the IAC or TPS?
Or is there another problem I might be overlooking?
Old 04-23-2017 | 01:47 AM
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Year: 1992
Model: Cherokee
Engine: 4.0
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65 hits and no suggestions?
Old 04-23-2017 | 09:58 AM
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From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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Ever clean IAC ?
Old 04-24-2017 | 11:46 PM
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Year: 1992
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Not yet. But now that you mentioned it, I will.

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