Alternator sqeak and rough idle
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Instructor
Joined: Sep 2008
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From: lenexa ks
Alternator sqeak and rough idle
I purchased a new alternator about 8 months back and then had my engine rebuilt. I noticed I had coolant leak and got it fixed. My alternator is sqeaking bad when I drive and get above 1500rpms. I replaced the belt yet it still sqeaks and sometimes when I drive for awhile on a highway an get off if the car sits for awhile it starts to idle very rough and makes a loud ticking and sqeaking noise. Can anybody help me on how to fix this? I think maybe some antifreeze got in the alternator.
Le Mans Master
Joined: Mar 2002
Posts: 8,466
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St. Jude Donor '17
sounds like you need to have the problem isolated so somebody can help you. Take it to a trusted corvette mechanic.
the issue could be with one of the pulleys.
remove the a/c belt to start isolating.
I cannot explain your rough idle but the squeek is common with idler pulleys or balancer pulley. Is your balancer grooves running straight or wobble a lot?
the issue could be with one of the pulleys.
remove the a/c belt to start isolating.
I cannot explain your rough idle but the squeek is common with idler pulleys or balancer pulley. Is your balancer grooves running straight or wobble a lot?
Drifting
Joined: Feb 2008
Posts: 1,596
Likes: 67
From: Bahama North Carolina
I purchased a new alternator about 8 months back and then had my engine rebuilt. I noticed I had coolant leak and got it fixed. My alternator is sqeaking bad when I drive and get above 1500rpms. I replaced the belt yet it still sqeaks and sometimes when I drive for awhile on a highway an get off if the car sits for awhile it starts to idle very rough and makes a loud ticking and sqeaking noise. Can anybody help me on how to fix this? I think maybe some antifreeze got in the alternator.
