Overheating replaced the thermostat?

Tiny
TRACEY TUTTLE
  • MEMBER
  • 2007 CADILLAC ESCALADE ESV
  • V8
  • 2WD
  • AUTOMATIC
  • 135,000 MILES
I just replaced the thermostat and the water pump on my Cadillac but it is still overheating. What could be the problem?
Saturday, January 17th, 2026 AT 2:13 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,591 POSTS
When the engine is overheating can you hear the cooling fans running? If not this is the problem, also do an inspection of the radiator when the engine is cold to make sure there is nothing clogging the cooling fins both internally or externally. Please go over this guide to help us get started. Also, please look under the car to make sure the system is not leaking.

https://www.2carpros.com/articles/engine-overheating-or-running-hot

Please go over this guide and get back to us. Please upload a short video in your response of the problem, so I can see what's going on.
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Sunday, January 18th, 2026 AT 9:49 AM

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