My 1991 Chevy Astrovan keeps spewing antifreeze fumes through the vents, actually fogging up the windows. I was told its the heater core. Im getting that fixed this weekend, but now the temp. gauge

Asked by Joe Dec 16, 2014 at 02:59 PM about the 1991 Chevrolet Astro CL AWD

Question type: Maintenance & Repair

Keeps going up and down, is that v related
to the heater core too?

2 Answers
144,755

T_S_T answered 9 years ago

More than likely ,you are loosing coolant through the heater core,and low coolant will make it jump back and fourth.

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