C5 Squeaking engine, is it the harmonic balancer?
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C5 Squeaking engine, is it the harmonic balancer?
I have an 1999 Corvette and have a squeaking sound coming from the engine. It used to be only at start up and would go away but now it is always present. I tried replacing the idler pulley/tensioner pulley for the serpentine belt, but that didn't fix it. I have watched the harmonic balancer while engine is running and it doesn't look like it is vibrating, or maybe it vibrates very slightly. How can I tell if it is the harmonic balancer? The squeaking is coming from front of the engine and it changes with rpm, but never really goes away.
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How's the S-belt look?
Did you change it with the tensioner?
Good luck
Did you change it with the tensioner?
Good luck
Thread Starter
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Joined: Feb 2012
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Serpentine belt is fairly new, but I didn't change the belt when I put on the new pulley. The squeak is not the same as belt squalling sound. It's like the squeak speeds up, but it doesnt' get more intense like a slipping belt sound.
Last edited by rodvet; Jul 9, 2021 at 03:13 PM.
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Belts, I should say. Don't forget the AC. It also has its own tensioner that can make noise. Just did that on my mom's 02 Escalade for the same reason.
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