Question about 2007 Chevrolet Tahoe

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Air Conditioner From time to time when the auxilary a/c is turned on for the rear air conditioning the rear vents begin blowing hot air instead of cold. After turning the a/c off or running the rear setting up to 90 degrees and back down to 60 degrees it will cool again, but may unexpectantly return to blowing hot air. Has anyone else experienced this problem with their 2007-8 tahoes? I love the car, but this has been a pain and i have had it in at 2 different dealerships and it won't replicate the problem so they can fix it. Thanks

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Hey im working on air cons for bout 6 years now,i get that problem alot, 3 things you shoud have sum one check,

1 :The refrigerant presure, if the presure is too low the compressor would go on and of.

2 :The belt on the air con,see if its tight,the colder you want it the more tention you put on the belt and it can cause it to slip.

3 :If you had sum one working on it in the passed, make sure they filled it with the right gas, it sould say on the compressor witch you should use but i think it would be R134a.


Good luck...

Posted on Sep 09, 2008

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Posted on Jan 02, 2017

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