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a/c system on 2002 GMC Sierra 1500 HD

when i get off the throttle the a/c belt vibrates really hard, and it allready broke one a/c belt tenchioner

Asked by for the 2002 GMC Sierra 1500 HD
a) I'd start looking at the AC compressor. If like my truck that belt only drives the AC therefore if your not running the AC & (b) you have a good belt (AC off) everything is smooth? yes - Go back up to (a) no- Go to (b)
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a) I'd start looking at the AC compressor. If like my truck that belt only drives the AC therefore if your not running the AC & (b) you have a good belt (AC off) everything is smooth? yes - Go back up to (a) no- Go to (b)