cold start knock
11-30-2009, 10:42 PM
#1
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Location: Boise Idaho
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Year: 1998
Model: Cherokee
Engine: 4.0L
cold start knock
I did a quick search and came up with nothing. My question is- What would cause a 4.0L with 130,000 mi to knock once or twice when the starter is cranking and its below freezing? when its warm it does not do this... its got me a bit puzzled.
Jeep in question
Jeep in question
Last edited by Baja820; 11-30-2009 at 11:13 PM.
11-30-2009, 11:32 PM
#3
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Year: 89
Model: Cherokee
Engine: 4.0
alot of cars will do this,it is caused by thick oil and lack of oil film between beraing journals and crankshaft,i would suggest a thin grade oil and a block heater.
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