The temperature gauge is fluctuating a lot lately (especially when I accelerate).

Tiny
EKATHRYN
  • MEMBER
  • 1999 CHEVROLET LUMINA
  • 57,000 MILES
No warning lights come on, but sometimes the gauge goes pretty high. I am suspicious that my mechanic hasn't been checking my fluids when I get my oil changed. I wonder if it's just that my coolant is low. How do I check that and top it off? Thanks!
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Friday, January 27th, 2012 AT 1:44 AM

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Tiny
PROMECHANIC
  • EXPERT
You need to top off your coolant first of all. If there is not a cap on the radiator then you need to find the coolant reservoir. You can find where it is using your owners manual. It will have a picture of it.
It sounds like you probably have a leak in your cooling system. You need to have a pressure test done on your cooling system if you can't find the leak just by looking.
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Friday, January 27th, 2012 AT 2:21 AM

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