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Engine Overheating?

Tiny
STEVE19271
  • MEMBER
  • 2006 CHEVROLET IMPALA
  • 3.5L
  • V6
  • 2WD
  • AUTOMATIC
  • 99,000 MILES
My car has a temp gauge and a digital readout for odometer and other functions. Temp gauge was working fine then I noticed my digital display read engine hot A/C off. Temp gauge was all the way a cold and engine didn't feel hot. I squeezed the coolant line and it was warm to the touch but squishy (no excessive pressure build up). Any advice? I'm thinking maybe my temp sensor went out.
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Friday, November 7th, 2014 AT 7:56 AM

2 Replies

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

It sounds like you might have a faulty sensor.
As you mentioned the engine was not hot but the message center says engine hot can mean there is a fault with the sensor.
It also might be a good idea to make sure you do not have air in the cooling system.
Remember to work on the engine when it is cool.

https://www.2carpros.com/articles/how-a-coolant-temperature-sensor-works
https://www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement

I have attached the coolant temperature sensor replacement as well as wiring diagrams for your reference.

Please let me know of any questions.

Thank you.
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Monday, August 2nd, 2021 AT 1:10 PM
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
See below the coolant temperature location and wiring diagram. Thank you.
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Monday, August 2nd, 2021 AT 7:26 PM

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