C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Engine squeal noise

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Old Sep 12, 2018 | 06:03 PM
  #21  
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Thought I would add to this thread. Have same issue as the OP. I removed power steering belt. Same squeal. New alternator, same squeal. Water pump is 3 years old. Removed clutch fan. No squeal. Put on new fan clutch, squeal is back. Not sure what to do.
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Old Sep 13, 2018 | 11:27 AM
  #22  
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Originally Posted by The Punisher
Thought I would add to this thread. Have same issue as the OP. I removed power steering belt. Same squeal. New alternator, same squeal. Water pump is 3 years old. Removed clutch fan. No squeal. Put on new fan clutch, squeal is back. Not sure what to do.
check all your pulleys for wobble can be as simple as the ac clutch engaging sporadically or a very slight main bearing out of round causing the puleys to be mis aligned, you have narrowed it down to water pump to fan sp checking those 2 pulleys will probably show an alignment wobble the new belt dressing isn't the same as the old oil type so if you have not replaced the fan belt a tiny bit of 90 weight oil instead of the new belt dressing may also fix it, but I wouldn't use the oil if the belt is a new nylon one
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Old Sep 14, 2018 | 01:07 AM
  #23  
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Originally Posted by The Punisher
Thought I would add to this thread. Have same issue as the OP. I removed power steering belt. Same squeal. New alternator, same squeal. Water pump is 3 years old. Removed clutch fan. No squeal. Put on new fan clutch, squeal is back. Not sure what to do.
See my solution up above - I finally figured out what my problem was. I did not have the proper belt...when I got the proper belt and routed it properly, the problem went away!
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