whistling problem
01-23-2012, 04:18 PM
#1
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Join Date: Jul 2011
Location: Southwest Idaho
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Year: 1990
Model: Cherokee
Engine: Straight 6 Cylinder/4.0 Litre
whistling problem
I've got a 1990 Cherokee pioneer with the 4.0L I6. Has a high pitch kinda whistle to it when the motor's warm. When I start it in the mornings to let it warm up, no problem, runs fine. But once it's warm, it's got a high pitch whistle to it. I can shut it off and restart it and it continues. Only happens when idling, when driving down the road-no problem. Anyone else having this kind of problem and might know how to fix it?
01-23-2012, 06:26 PM
#3
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Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
You probably got a leak around the intake manifold/throttle body area. Try spraying some TB cleaner around there and see if it sucks it in anywhere, changing the idle. Then you will have found your leak
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