SPONSORED LINKS

Overheating in hot weather/stop and go driving

Tiny
DEB HAYES
  • MEMBER
  • 2003 CHEVROLET TRAILBLAZER
  • V6
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
Mechanic replaced thermostat, clutch fan (second one in two years), water pump (third one in four years), and it still overheats if it is hot outside or with city (stop and go) driving. I took it back to the Sears mechanic and he said he cannot find anything wrong. They let in run for hours in the sun I the parking lot and it never overheated. They said the radiator, hoses, and head are all good. Please help!
SPONSORED LINKS
Wednesday, July 4th, 2018 AT 4:00 AM

3 Replies

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

It sounds like the radiator may be clogged with debris. Letting it run for hours at idle will never tell if it is bad.

It fails under load or while driving. They need to drive it until it runs hot. Then they need to take the temperatures of the radiator at the top and the bottom of the radiator.

Roy

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

https://www.2carpros.com/articles/how-to-replace-a-car-radiator
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+1
Wednesday, July 4th, 2018 AT 5:15 AM
Tiny
DEB HAYES
  • MEMBER
  • 2 POSTS
Thank you so much for your reply. I am going to try that. I will let you know how it turns out.
Was this
answer
helpful?
Yes
No
Wednesday, July 4th, 2018 AT 7:04 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Sounds like a plan.

Roy
Was this
answer
helpful?
Yes
No
Wednesday, July 4th, 2018 AT 7:05 AM

Please login or register to post a reply.

Related Engine Overheat Content

Is Your Engine Cool Enough to Check?
VIDEO
Is Your Engine Cool Enough to Check?
Instructional repair video
Overheating Symptoms
GUIDE
Overheating Symptoms
An overheating engine is never a good thing to have happen. If the problem is caught quickly you can save the headache of a major engine repair. Knowing the information from...
VIEW MORE

Sponsored links