Car will not heat up

1995 PONTIAC FIREBIRD
150,000 MILES
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SHWELLS
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  • 20 POSTS
Ive checked the coolant, the car wont heat up, the temp gauge is below 160 at all times, the car heats up when it stands but then when I start driving it cools off, the thermostat is brand new as of summer
Feb 26, 2012 at 9:40 PM
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RASMATAZ
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The thermostat could be stuck open-retest it-
Feb 26, 2012 at 9:43 PM
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SHWELLS
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  • 20 POSTS
Just checked that, there's pressure in the hose and the radiator
Feb 27, 2012 at 12:04 AM
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TWO LANE
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  • 34 POSTS
Does the heater blow hot or is it just cool
Feb 27, 2012 at 8:56 AM
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RASMATAZ
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What don't heat up? Heater or the Engine?
Feb 27, 2012 at 9:16 AM
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SHWELLS
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  • 20 POSTS
The heater blows warm, and gets hotter as the temp gauge goes up, only when it's idling but as soon as I drive the temp gauge goes back down, and the air gets cooler, the engine gets hot
Feb 27, 2012 at 4:21 PM
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RASMATAZ
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Reverse flush the heater core, check the air blend door/actuator and also could be a worned water pump impeller
Feb 27, 2012 at 6:06 PM