1997 suburban heater fan only works on high why?

Asked by Jan 11, 2014 at 04:56 AM about the 1997 Chevrolet Suburban K1500 4WD

Question type: Maintenance & Repair

2 Answers

90

Your AC pump is overwound, remove your serpentine belt and rotate the compressor counter clockwise 250 to 300 times. Of course I am assuming you are only driving when you are not high!

3,055

might need a new resistor,thats what controls your fan speed.

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