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1997 Chevy Lumina Engine over heating

Tiny
PROJECT_NOVA
  • MEMBER
  • 1997 CHEVROLET LUMINA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 102,000 MILES
Hi,
I have a 97 chevy lummina with a v6 3.1 engine. It over heats within about 5 minutes. The radiator remains cool to the touch. I already replaced the thermostat.

I did a little testing myself and found out when the engine is cold and I open up the radiator cap. The coolant overflows into the pan I placed under the car for a few minutes while. Then the coolant level drops. So I add more and buy that time its full agian the engine over heats. Could this mean I need a new water pump? Even though the coolant seems to be moving around.
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Saturday, March 28th, 2009 AT 12:51 PM

2 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
When filling you need to open air bleeder valve near thermostat. Open run add fluid till a stream off fluid comes out valve.
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Saturday, March 28th, 2009 AT 1:57 PM
Tiny
PROJECT_NOVA
  • MEMBER
  • 8 POSTS
Ok, I found the bleeder valve and bleed off all the air and its still doing it.
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Sunday, March 29th, 2009 AT 4:03 PM

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