probably just needs belt replaced , make sure its not got a leak and matbe getting coolant on the belt , and the oil pressure is not even closely related to the belt , all internal in the engine
looks dont mean anything, how many miles are on the belt , im not saying it is the belt , the thing to do would be to take the belt loose and spin the alternator , tensioner ,a/c pulleys and see if you can hear anything noisy that shouldnt be , if you dont see anything then , the belt may be worn and may not visually look bad
then i would check everything like i was telln ya , and also make sure you arent getting coolant on the belt , that will cause it to squeal also , you can spray something on it like brake clean while engine is running , if noise goes away for a second after you spray it then the belt is the problem , if it doesnt then look deeper
hey guys thanks i did the brake clean ad did what scuffy828 said so i put a new belt on and its all good now thanks
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