I got a 91 cherokee laredo with the standard 4 liter 6 cylinder engine, with a manual transmission. It has developed a squeal in the engine bay somewhere. When the engine is cold, it's silent. After warming up for about 20 min, it begins squealing. This squeal is high-pitched, being loudest when the car is idling, both in gear and in neutral, and decreasing in volume when I accelerate. It fully disappears when the tachometer hits around 2500 rpm. As soon as it drops below this value, the squeal returns. I am wondering if anyone knows what may be causing this and what I'm looking at as far as an approximate repair bill goes. Any input is greatly appreciated... Thanks

 

are you sure that it is not a lose/glazed belt...

 

start by replaceing your belt,also make sure your PS fluid is full

 

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