87 cherokee 4.0 idle drops off during warm up and catches itself but is great once wa
01-01-2018, 11:32 PM
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Model: Cherokee(SJ)
87 cherokee 4.0 idle drops off during warm up and catches itself but is great once wa
87 Cherokee 4.0 Stumbles to low rough idle then catches itself to normal idle speed until falling of again. continues this until warmed up then runs perfectly. Have set throttle plate to .005. Set new TPS with good meter. Replaced faulty CTS. Replaced crank sensor. Cleaned throttle body and checked for air leaks. New Iac....maybe defective or wrong one? Thanks....
01-02-2018, 06:38 AM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
87 Cherokee 4.0 Stumbles to low rough idle then catches itself to normal idle speed until falling of again. continues this until warmed up then runs perfectly. Have set throttle plate to .005. Set new TPS with good meter. Replaced faulty CTS. Replaced crank sensor. Cleaned throttle body and checked for air leaks. New Iac....maybe defective or wrong one? Thanks....
Also, how did you set your TPS? Which connector did you use? The flat one or the square one?
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