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Coolant sensor switch location

Tiny
THE WOOD
  • MEMBER
  • 2007 CHEVROLET EXPRESS
  • 4.8L
  • V8
  • AUTOMATIC
  • 351,000 MILES
Car is overheating! Replaced the radiator cap because the overflow level remained unchanged while vehicle was overheating. That new cap resolve that issue but still overheating, turn heater on and lukewarm air comes out. Had the thermostat replaced in October 2018.
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Thursday, August 1st, 2019 AT 10:10 AM

1 Reply

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

Did you pressure test the cooling system for leaks?

https://www.2carpros.com/articles/radiator-pressure-test

I would replace the thermostat again. That was October and this is now. It may have been damaged from the overheating.

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

The coolant sensor has no effect on the overheating.

Roy
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Thursday, August 1st, 2019 AT 1:20 PM

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