Pontiac Grand Prix Heater Not Working

The Heater Doesn't Blow Out Hot Air. When The Car Is Sitting Still And Running The Temp Climbs Up Then It Will Drop Back To Normal What Is...

Minimal Hot Air Coming Out Of Vents. I Have Flushed The System Including The Heater Core, Changed Thermostat, Checked The Three Electonic...

Water Pump Seized Up, I Replaced It. Also Changed Thermostat, Code Reader Said Engine Temp Sensor, So I Replaced That Too. Light Still On...

What Could Be Wrong With My Heat? Have None

Not Blowing Hot Air

I Changed Thermostat, Let Car Get To Temperature Checked The Heater Core Hoses And Both Are Hot To Touch. I Have No Heat Blowing Out Just...

I Replaced Thermostat Heat Worked For A Day. Now No Heat. Car Gets Up To Temperature But Blows Cold Air.

I Just Flushed Hoses Out And Still No Heat. It Worked Right After Flushing But Now Just Cold Air.

Do You Have Any Idea Why My Fans/blowers Will Not Come On? A Few Weeks Ago The Fans Stop Blowing One Day And Were Back On The Next. This...

My Heater Is Blowing Cold Air Out. The Antifreeze Is All Top Up. What Do You Think Is Wrong.