Engine Squeak
Thread Starter
Heel & Toe
Joined: May 2017
Posts: 20
Likes: 1
Engine Squeak
I have an engine squeak on my 2000 Corvette. I've changed both belts and now the power steering pump (thought for sure that was the culprit). No luck. Any ideas? Its tough to track down. It sounds like it's coming from the drivers side. It's just really hard to tell for sure. I read about it and others reported the Power Steering pump. I had someone else look at it and they thought it was the pump as well. One thing, I did buy a rebuilt pump. The one that came out didn't feel bad to me just by manually turning the shaft.
Le Mans Master
Joined: Sep 2014
Posts: 5,278
Likes: 540
From: Kelowna BC
Pull the belts and check the pulleys out. They should turn nice, the same, no wobble if you try to wobble them. Could also be the HB. Run the motor without the belts; does the noise stay? Does it wobble at all?
Racer
Joined: Feb 2018
Posts: 252
Likes: 21
From: Meridian Idaho
Using a stick of wood, squweegee handle works great, as a sythescope ,go around the areas, you will hear the good n bad so when the squeel comes you will definitly know it. Sound transmits through solid objetcs well so explore around until you are certain.
Thread Starter
Heel & Toe
Joined: May 2017
Posts: 20
Likes: 1
Ok I've tracked it down to the Harmonic Balance Pulley. I did this by pulling both belts (no squeak), adding only ac belt I get squeak, adding only serpentine belt I get squeak. I spray WD40 on the harmonic balancer w/ only the serpentine belt squeak goes away for a minute. My question now is why? What could go wrong with it? Its seated on the shaft correct? Could I have more damage that is unseen? I'm a little worried as to the what all could be wrong. Do I just replace the harmonic balancer pulley and go on? Any ideas appreciated. Thanks...
Race Director
Joined: Apr 2017
Posts: 10,247
Likes: 888
From: Hickory NC
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Is the harmonic dampener (balancer) wobbling when the engine is running?
When you say, replace the harmonic balancer pulley, are you meaning replacing the balancer?
If you think about a common link to your trouble shooting above, (with just the ac belt you get a squeak and with just the serpentine belt you get a squeak), I believe the single major common engine part involved is your balancer.
Look to see if you balancer wobbles when the engine runs. With the engine off, see if there is any play in the balancer if you try moving it back and forth by hand.
Hopefully, that will help you determine if your balancer is good or bad. After that, check the belt tensioners and idle pulleys as Corvette#2 suggested.
Good luck.
When you say, replace the harmonic balancer pulley, are you meaning replacing the balancer?
If you think about a common link to your trouble shooting above, (with just the ac belt you get a squeak and with just the serpentine belt you get a squeak), I believe the single major common engine part involved is your balancer.
Look to see if you balancer wobbles when the engine runs. With the engine off, see if there is any play in the balancer if you try moving it back and forth by hand.
Hopefully, that will help you determine if your balancer is good or bad. After that, check the belt tensioners and idle pulleys as Corvette#2 suggested.
Good luck.
Thread Starter
Heel & Toe
Joined: May 2017
Posts: 20
Likes: 1
Is the harmonic dampener (balancer) wobbling when the engine is running?
When you say, replace the harmonic balancer pulley, are you meaning replacing the balancer?
If you think about a common link to your trouble shooting above, (with just the ac belt you get a squeak and with just the serpentine belt you get a squeak), I believe the single major common engine part involved is your balancer.
Look to see if you balancer wobbles when the engine runs. With the engine off, see if there is any play in the balancer if you try moving it back and forth by hand.
Hopefully, that will help you determine if your balancer is good or bad. After that, check the belt tensioners and idle pulleys as Corvette#2 suggested.
Good luck.
When you say, replace the harmonic balancer pulley, are you meaning replacing the balancer?
If you think about a common link to your trouble shooting above, (with just the ac belt you get a squeak and with just the serpentine belt you get a squeak), I believe the single major common engine part involved is your balancer.
Look to see if you balancer wobbles when the engine runs. With the engine off, see if there is any play in the balancer if you try moving it back and forth by hand.
Hopefully, that will help you determine if your balancer is good or bad. After that, check the belt tensioners and idle pulleys as Corvette#2 suggested.
Good luck.
Yes I'm fairly certain it is the harmonic balancer that needs replaced.
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Thread Starter
Heel & Toe
Joined: May 2017
Posts: 20
Likes: 1
Yes at first it did (all last summer) after about 10 minutes of driving it would go away. But in trouble shooting I sprayed WD40 on the harmonic balance pulley (which DID make the squeak go away for a minute or so) and now the slight squeak is WAY worse and in driving for 15 minutes it did not go away.