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Overheating

Tiny
ENOS1801
  • MEMBER
  • 2006 PONTIAC GRAND PRIX
  • 3.8L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 107,000 MILES
Hello, I am wondering why my car is overheating a bit. It goes over the half way mark but never in the red. I changed out the water pump, thermostat, radiator and temperature sensor, but it still does this. What could it be?
Thursday, August 15th, 2019 AT 10:17 AM

7 Replies

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

Does the cooling fan operate? It should come on at 217 degrees and go off at 195.

https://www.2carpros.com/articles/symptoms-of-an-overheating-engine

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

Roy
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Thursday, August 15th, 2019 AT 1:52 PM
Tiny
ENOS1801
  • MEMBER
  • 4 POSTS
Yes, I replaced the fans as well forgot to add that. They both would come on but then again after the driver side fan wouldn't. I switched the connectors around and now they both come on together and cut off together.
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Thursday, August 15th, 2019 AT 2:25 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, what temperature do they come on and go off?

Roy
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Thursday, August 15th, 2019 AT 2:27 PM
Tiny
ENOS1801
  • MEMBER
  • 4 POSTS
I am not sure, how would I check that?
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Thursday, August 15th, 2019 AT 2:31 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You can get an infrared gun. Harbor Freight has them for about $15.00 to $20.00. Then you can take the temperature of the coolant at the thermostat housing and see the actual temperatures.

Roy
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Thursday, August 15th, 2019 AT 2:33 PM
Tiny
ENOS1801
  • MEMBER
  • 4 POSTS
Okay I'll look into getting one maybe today. I'll get back to you and let you know. Thanks Roy!
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Thursday, August 15th, 2019 AT 2:40 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Keep us updated.

Roy
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Thursday, August 15th, 2019 AT 2:42 PM

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