gmc envoy 2005 ac problems

07-25-2014, 12:10 PM
at first when i turned on my ac or heater on my 2005 envoy my rpm would lower and the car would stall now when i turn on my ac it blows hot air and i get a burning smell the fan still works but i get this really bad burning smell so i have to shut off the ac .please help

07-25-2014, 12:34 PM
First thing I would check is if the A/C compressor pully is locked up, or possibly the compresor itself is siezed...

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