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Hello. I have a 2007 Cadillac CTS 3.6 and I’m having an issue with the ac system. Ac blower blows great but the compressor is not coming on. On the ac control panel the “ac off” lift stays on constantly no matter what buttons I press also on the radio screen the message cones up “service ac system”. I made it as far as checking the fuse which is good and I swapped out the relay and it’s still the same. Just wondering if anyone can help point me in which direction to go from here. Any help is much appreciated 

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You prob. need a r-134 charge.  If the system is out of r-134 then the compressor wont engage.

You could buy one of those a/c recharge kits at your local parts store and DIY if your handy.

https://www.walmart.com/ip/Supertech-R-134a-Combo-Kit-18-Ounce/105656096

 

 

Edited by sonjaab

93 DeVille-13 Chevy Impala

72 GTO - 77 Triumph Bonneville

84 Z-28

Syracuse NY

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