THE HEATER RUNS HOT AS DRIVING WHEN I FIRST TURN...

2005 Pontiac Grand Am

Tiny

kmahieu79

March, 8, 2013 AT 11:11 PM

The heater runs hot as driving when I first turn it on, then goes to warm, and it will do the same cycle if I turn it off and turn it back on 2 mins later. At an idle it starts warm then goes to cold. My temp gauge also fluctuates between 195-215 as I am driving. Just changed thermostat, no change. Checked reservoir, shows it being to the full line.

1 Answer

Tiny

homer1967

March, 9, 2013 AT 1:23 AM

The cooling system has to be bled. Your symptoms are tipical of air pockets in the cooling system. Take it to a shop and have them bleed it thoroughly.

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