Question about 2002 Chevrolet Blazer
Posted by Anonymous on
Vacuum leak somewhere. did someone put in a aftermarket radio? most times they will screw something up when they do replace factory items.
Posted on Jun 13, 2014
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Posted on Jan 02, 2017
the idea of the switch is run on vacuum and is not making contact with the switch it self either worn contacts in the switch itself **** as an obstruction as well or the vent door is stuck in just that position either behind the glove box or the ash tray are the vacuum lines one of them may be pinched off or the door needs a bit of help until you can free it up
Posted on Sep 08, 2009
Probably a loose or broken vacuum line under the hood somewhere. With the engine running, wiggle all hoses around and listen for a hissing. Check the one that goes to the vacuum pot that bolts to the under side of the hood. There is also one that runs just on the left side of the air breather that is prone to cracking from heat.
Posted on Jul 14, 2010
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