Mechanics

HEATER NOT WORKING

2005 Pontiac Grand Prix

Heater problem
2005 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic 75000 miles

I am having an issue with my heater in my 05 Grand Prix. About 8 months ago while starting it, I had smoke coming up from the cowl and into the car on the passenger side. I parked the car till now an am trying to fix the issue. I have replaced the heater relay next to the blower motor and have also replaced the blower but still no heat. I had the switch replaced about 2 years ago. Any advise as to where to look next?
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Johnson_82
October 30, 2010.



Seems like heater core may be at fault here. That smoke was most likely coolant being blown from the faulty heater core.

Bluelightnin6
Oct 30, 2010.