I have a Pontiac Grand Am and the thing u put.

Tiny
NICO18062
  • 1999 PONTIAC GRAND AM

I have a Pontiac grand am and the thing u put water in I think its called the overflow valve it got a hole in it what could of caused that I just replace the thermostate

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Monday, February 4th, 2013 AT 7:37 PM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,362 POSTS

It could be brittle from the under hood heat. If the coolant leaks from it, it will need replaced.

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Monday, February 4th, 2013 AT 9:31 PM

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