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what causes squealing sound on my 5.7L gmc motor even with all belting removed?
2 Answers
Bob answered about a year ago
See if you can determine if the noise is coming from the front or rear of the engine. If front I would suspect something to do with the timing chain maybe rubbing on the timing cover. If at the rear of the engine I would suspect something to do with the starter or flexplate (flywheel). Does the noise change with engine RPM? If not check the heater a/c blower motor.
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