Question about 2001 GMC Safari
The knob that turns the heater from A/C to windshield to upper vents etc doesnt do anything. i know it is vacuum activated but where should i begin to diagnose
The cable is probably dislocated from the knob or at the blend door actuator.The cable may also be seized.
Posted on Jul 28, 2009
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Posted on Jan 02, 2017
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