I have a 1986 Mercury Grand Marquis that has a squeak in the engine when i start the car. My dad replaced the water pump a couple of months ago after it broke and i think he didn't tighten one of the belts right when he put it all back together. Could this squeak be from the tension on one of the belts?
Try spraing jus alittle wd-40 when it squels this will determ which belt or not dont spray all at once. if its the belt try to tighten. or if the belts dont have any play then the squeal is bearing. maybe pump,smog ac ,power steerin, good luk claymister
Yes. Squeal is from a/c compressor. Belt too loose.
If squeal occures only when "A/C" or "DEFROST" are selected on heater controls, and goes away when you select HEAT. The squeal is fom the a/c/ compressor. First have a/c/ compressor checked to be certain it itself is not the cause of the squeal. Up and down play in ac belt midway between pulleys should be 3/4 of an inch. Have all belts over 6 years old replaced, regardless of mileage. All pulleys cleaned by a pro and belts tensioned properly. and get it over with. (hopefully) for 6 years. note : some belts when replaced with new ones will require re adjustment after an initial 100 mile break-in period.
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how do i know the squeal is from the a/c compressor and not one of the other belts?
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