2002 Cadillac Escalade Q&A

2002 Cadillac Escalade Question: there is a loud squeeling and chattering noise when I accelerate with the a/c on

it doesn't make the noise with the a/c off,I have replaced the tensioner pulleys and and it seems to be in or around the compressor, do you know what is causing the noise -
Answer 1
GM has a bulletin out about this issue. The cure is to replace the A/C compressor. The original compressor causes the belt tensioner to become damaged from the startup load on the belt. -
Comment 1
is there a recall on it? -
Answer 2
You may have bend reed valves in compressor if you turn the compressor around ten revolutions it may bind verifying the internals are bad. -
Comment 1
is it possible that its just the a/c clutch -