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Overheating

Tiny
DAVID ATKINSON2
  • MEMBER
  • 2006 CHEVROLET COLORADO
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 200,567 MILES
My truck overheats and will shut off slightly after the halfway point on the temperature gauge. It will reach halfway within 10 minutes of running either idle or driving. I replaced the water pump, thermostat, flushed the radiator and checked sensors. It continues to overheat.
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Tuesday, June 29th, 2021 AT 10:47 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

I would have a leak-down test done to check and see if you have a failed head gasket. This would be the next step from what you have already done. The constant overheating may have damaged the head gaskets.

https://www.2carpros.com/articles/head-gasket-blown-test

This test is done by removing the spark plugs. Then add shop air into each cylinder one at a time and watch for any movement in the radiator coolant level.

https://www.2carpros.com/articles/how-to-change-spark-plugs

Roy
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Wednesday, June 30th, 2021 AT 2:27 AM

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