Question about 1999 Chevrolet Express

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Our 1999 chevy express 1500 rear a/c does not work but the front a/c works well. it seems that there should be a coolant shut off valve or something to allow the a/c to work.

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I am having same problem but don't see the vavle what is the doghouse thing you r talking about my rear is blowning hot air frontispiece cold

Posted on Jun 07, 2011

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Sometimes there is a valve on the right upper part of the doghouse if you are facing front. With hood popped look for a wing -nut looking valve. Test it a little and make sure its the right one before driving anywhere. Hope this helps.

Posted on May 09, 2009

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