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Q:

Serpentine Belt with new AC and new Tensioner on 1990 Chevrolet S10

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
1988 s10 tahoe 4.3 v6 new air compressor, new belt derailed at compressor within 5 miles, tensioner replaced, belt replaced, belt came off at compressor again within 5 miles.
Both times truck was in reverse backing out, if this makes a difference.
(1) Answer
was the ac compressor new or used?? who charged the system?? if it was overcharged, the compressor will lock up and throw the belt. you need to have a shop familiar with ac work to check and confirm.


Roy