| [GMCnet] Engine sqeak greater than 50 mph [message #68468] |
Sun, 27 December 2009 11:08  |
gmc gmc
Messages: 69
Registered: May 2009
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Hello all,
We are southbound i39 in Illinois. When we exceed about 50 mph we hear
from the engine a constant higher pitched sqeaking sound. It seems to
lessen when we release the accelerator. We suspect it might be a loose
belt, possibly the alternator? We stopped and opened engine
floorboard, started the motor, all was normal. Reved the motor a
little heard some squeaking, one belt looked like it vibrated a
little. Suggestions? Should we stop and try to tighten alternator
tension?
Thank you
Southbound,
Mike and Steph
Sent from my iPhone
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