Question about 2002 Pontiac Grand Prix

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Heater not working

The heater will not work. the temp of the car runs normal but it also loses water but cant find out where

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Hello;
You state that the car looses water. Does it leak onto the ground or inside the car? Is the carpet wet? If you have not done so, change the thermostat and backflush the system. Inspect all your connection points for coolant. Make sure that all the connections are tight. I have seen the heater control valve fail and leak also. Hope this helps.
Thanks;
Rich
RPM Northwest

Posted on Jan 27, 2009

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