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2004 GMC Yukon XL 1500 Question: Have a vibrating noise comming from ac seems like when compressor kicks on .
Answer #1Greg's Orange Auto (14968 Answers) , Orange, CA - (714) 361-9386globalhelper August 07, 2012, 09:54Master
could be a blockage and compressor may be going out. i rec getting it ck'd before it causes more damage
Answer #2Chevy Power August 07, 2012, 16:58Journeyman
Check for an A/C hose or line "grounding out", meaning it is rubbing against something that it should not. Also I have seen a dirty cabin air filter cause a blower motor noise.