how often
Team Owner
Joined: May 2001
Posts: 87,302
Likes: 1,583
From: Western NY
FWIW, I have 12,000 miles on my 5 year old C-5 belt, and it still looks OK and runs quietly. However, I just had to replace the belt on my Z-28 a couple of days ago. The car is 10 years old, with 63,000 miles. I've replaced it at least once before, however it just started squealing when I would turn on the a/c. There are no cracks, or any visible damage, but it just lost "traction".
Melting Slicks
Joined: Jul 2005
Posts: 2,572
Likes: 3
From: Rehoboth MA . . . NRA Life Member
St. Jude Donor '06-'07
It's really dependant on a number of variables; millage, damage, heat etc. A belt needs to be inspected on an annual bases. Any visual damage; cracking or brittleness is a good indication that its time to change. Another substance that causes them to deteriorate is ethylene glycol. Leeks in the system that come in contact with belts also causes them to degrade over time and accelerating their replacement.
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Melting Slicks
Joined: Nov 2001
Posts: 3,122
Likes: 2
From: MCO
Originally Posted by cooluhl
Just changed the one on my Tahoe with 130000k miles on it. Still looked good, but the tensioner started squealing. 
)? Or.... did the squealing stop when you changed the belt?
