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Car will not heat up

Tiny
SHWELLS
  • MEMBER
  • 1995 PONTIAC FIREBIRD
  • 150,000 MILES
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
Sunday, February 26th, 2012 AT 9:40 PM

6 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The thermostat could be stuck open-retest it-
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Sunday, February 26th, 2012 AT 9:43 PM
Tiny
SHWELLS
  • MEMBER
  • 20 POSTS
Just checked that, there's pressure in the hose and the radiator
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Monday, February 27th, 2012 AT 12:04 AM
Tiny
TWO LANE
  • MECHANIC
  • 34 POSTS
Does the heater blow hot or is it just cool
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Monday, February 27th, 2012 AT 8:56 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What don't heat up? Heater or the Engine?
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Monday, February 27th, 2012 AT 9:16 AM
Tiny
SHWELLS
  • MEMBER
  • 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
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Monday, February 27th, 2012 AT 4:21 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Reverse flush the heater core, check the air blend door/actuator and also could be a worned water pump impeller
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Monday, February 27th, 2012 AT 6:06 PM

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