Mechanics

HEAT & AIR TEMPS

GMC Jimmy

I have a 1999 Jimmy SLS. The problem seems to be that the belt driven ac unit engages on & off when the temperature gage is set on heat. Is this normal and what may be the problem to rectify the situation
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Torypa
November 18, 2006.



Yes this is normal. As long as the control is set in one of the defrost modes.

Tiny
Heavyduty
Nov 20, 2006.