Question about 1997 GMC Safari
The selector switch for the heater and airconditioner just stays on defrost, only blows out the top, the airconditioner works as well the heater but will not blow out the front vents or anywhere else?
Sounds like a vacuum leak. Check the vac supply on the intake manifold. Passenger side front of intake.
Posted on Jun 24, 2009
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Posted on Jan 02, 2017
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