Heater not heating. Blower works but no heat. 2006 grandprix GT with supercharged engine. Just had oil change and checkup for "check engine light" with nothing showing in codes. Where to start?
Tx
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10-20-2013
Heater not heating. Blower works but no heat. 2006 grandprix GT with supercharged engine. Just had oil change and checkup for "check engine light" with nothing showing in codes. Where to start?
Tx
10-20-2013
Check to make sure its full of coolant and if it is start with changing the thermostat since that's a cake easy job to do and its like a 3 dollar part and see if that fixes the issue. Thermostats stick and the cooling doesn't go open loop and the thing wont blow hot air. Ive changed plenty of thermostats just because the car only had warm air in the winter. It usually works especially if it blows but the air is cool.
10-20-2013
Checking the coolant is easy, but I am not sure where the thermostat is located. I imagine it isn't hard to change out either.
10-20-2013
where the top radiator hose goes into the lower intake is where the thermostat is. There is 2 10mm bolts I think holding it down and has a bleeder screw on top of it. If your standing at the front bumper looking at the engine bay its on the drivers side of the engine in front of the throttle body.
10-20-2013
http://www.youtube.com/watch?v=2APv8zw86I0
you do not need to take the hose off the neck! Just take the 2 bolts out holding the thermostat neck down and replace it. That will save you from screwing around putting that hose back one and them clamps can be a pain in the ass too.
10-20-2013
Originally Posted by bluegirl
pop the hood with the engine up to operating temps, theres 2 hoses off the alt bracket to the fire wall, carefully touch them both, if they are both hot, thats good, if one is warm the other cold your heater core has air in it.
take those 2 hoses off the alt bracket, put a garden hose to one hose and flush it till a steady stream of water comes out the other hose, then put it back on.
if both hose's are hot like they should be, the blend door actuators could both be bad. http://www.grandprixforums.net/showt...door+actuators
11-25-2013
Did replacing the T-stat fix your problem? I also have the same issue with my wife's 2007 GP. It's been blowing "luke-warm" air for a week or two. Wondering if it's the same problem?
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