2003 Pontiac Grand Am Logo
Posted on Dec 18, 2009
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Low coolant light keeps coming on and going off.. months ago i had the intake manifold fixed due to antifreeze leak.. but theres no leak i can see.. some small smell of antifreeze but the light comes and goes off.. only on somedays

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Chris

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  • Expert 197 Answers
  • Posted on Dec 18, 2009
Chris
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If you have a coolant low light, you have a sensor in your coolant "overflow" bottle. Check the bottle and make sure your coolant level is proper in the bottle (generally there are markings on the side for hot and cold levels). It sounds like the level is just at the point where it needs a little added.

If the level is fine, I'd get the sensor checked, as it may just be a bad (intermittent) sensor.

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  • Master 1,214 Answers
  • Posted on Dec 18, 2009
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Well, top off the overflow tank to the marks as indicated based on engine temperature, and see if it happens again, and note how long it took for it to happen.

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