The temperature gauge is not working, no A/C the cooling fan stays on after car is shut off?

Tiny
JAMES9999999
  • MEMBER
  • 2016 CADILLAC CT6
  • 3.6L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 45,000 MILES
These symptoms come and go and now engine light is on.
Tuesday, September 27th, 2022 AT 8:32 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
We need to run the codes to see what codes come up. It sounds like you have an engine coolant temperature sensor that has gone out which will cause the radiator cooling fans to run after the engine is shut off. Here is a guide to help you retrieve the codes and the location of the engine coolant sensor in the images below and how to change it:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

The sensor is under the intake manifold. Check out the images (below). Please let us know what happens.
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Tuesday, September 27th, 2022 AT 11:39 AM

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