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Temperature gauge goes up and down

Tiny
CRAIG PARKER
  • MEMBER
  • 2002 PONTIAC
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 100,000 MILES
As the temperature gauge goes up cool air coming out of vents, as it drops I have heat. No leaks that I know of.

I changed my thermostat two months ago.
Saturday, February 25th, 2017 AT 1:28 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,070 POSTS
Hey CRAIG,

It sounds like you have air stuck in the system, check out this guide to help you get the problem fixed.

https://www.2carpros.com/articles/car-heater-not-working

Please let us know happens.

Best, Ken
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Monday, February 27th, 2017 AT 10:28 AM

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