I have a 2004 yukon the rear heat quit blowing heat will just blow out cold air what should I look for as a problem and do you know how it works,
I know there is a blower in the rear passenger side panel thanks
Make sure your antifreeze is topped off.
In my '95 'burb, the rear heat quit working. Expansion tank was empty, and I found a hole in the aluminum line on the passenger side. The previous owner put running boards on and the screw was just hitting the line, and eventually rubbed a hole. That was my only experience with no rear heat...
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