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My car is running hot

Tiny
OLIVIAP79
  • MEMBER
  • 2002 PONTIAC SUNFIRE
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 120,000 MILES
My car's temp hand goes up when i'm in traffic or sitting still and the heater blows cold until I start getting some speed and then the heater gets hot and the temp hand goes all the way down. And it has overheated a couple of times. Is there someway to figure out if it's the thermostat or what's going on
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Monday, January 10th, 2011 AT 7:20 AM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
You need to pressure test the cooling system and determine where it may be losing coolant. The loss of heat is usually due to air pockets in the cooling system.
If you find that it hasn't lost any coolant, then you're probably looking at a plugged up cooling system.
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Monday, January 10th, 2011 AT 1:18 PM

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