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Overheating

Tiny
PAJAMU
  • MEMBER
  • 1999 PONTIAC MONTANA
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 174,764 MILES
I have a Pontiac Montana 1999. My car overheats The temp gauge registers all the way over to 240 and I am losing power to the van when this happens, yet no water loss at all.
Saturday, December 11th, 2010 AT 5:47 PM

2 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,878 POSTS
Hello,

This sounds like you have a stuck thermostat does it make a thumping noise when the engine is overheating?

Here are two guides to help you see what you are in for when changing the thermostat and checking an over heating engine.

https://www.2carpros.com/articles/replace-thermostat

and

https://www.2carpros.com/articles/engine-overheating-or-running-hot

Please let us know what you find.

Cheers, Ken

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Monday, February 5th, 2018 AT 1:44 PM
Tiny
PAJAMU
  • MEMBER
  • 1 POST
I checked out the guides you sent which were great and I had to agree on the thermostat so I replaced it and now its all fixed! Thanks for everything this site is great.
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Monday, February 5th, 2018 AT 1:45 PM

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