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Engine overheating?

Tiny
JUICEMANN
  • MEMBER
  • 2002 CHEVROLET IMPALA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 115,000 MILES
My car was overheating so I bought a thermostat for it. Still it was overheating, I then found out it was the radiator that was cracked so I bought a new one and installed it with a newer thermostat.I also found out the intake gasket was cracked so I got a new one put in. Ran the car for a while. Ac worked fine heat came on fine just like brand new. But the car still was overheating too fast. Im wondering if its da water pump?
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Tuesday, April 6th, 2010 AT 4:11 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

It could be the water pump, but also it can be the cooling fans.
Do you know if they are coming on as they supposed to?
First you need to check the relays for the cooling fan and verify that they are good.

Here is an article on how to test relays:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

If the relays are good then you will have to check to see if there is power going to the fan.
I have attached the diagrams for the relay and fan.

https://www.2carpros.com/articles/how-an-electric-cooling-fan-works

Please let me know of any questions.

Thank you.
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Monday, August 2nd, 2021 AT 3:03 PM

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