why isn't heat working in really cold weather but finevin mild weather

Asked by Feb 03, 2014 at 09:47 PM about the 2003 GMC Envoy XL SLT 4WD

Question type: Maintenance & Repair

If the temp outside is single digits or below zero the heat wont work but if i put a little
space heater on my floor board facing the glove box for 15 minutes & heat it up then my
heat kicks right on

1 Answer

18,145

Have the strength of your antifreeze checked. It may be freezing in the hoses.

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