Temp guage light on and temp is past the red zone, why is this happening?

Tiny
JESSEANDJULES
  • MEMBER
  • 1996 BUICK REGAL
  • 180,000 MILES
We have replaced the radiator, thermostat, and now the coolant sensor today after having problems with the fans not coming on. So after getting the coolant sensor put in the temp gauge is past the red and the temp light is on. The plus of it is now the passenger fan is coming on every few mins. The car is not overheating but the gauge is saying that we are. What did we do wrong?
Sunday, October 16th, 2011 AT 12:57 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
How do you know it is not overheating? Did you take the temp of the radiator? The gauge may be right. If it is, you may have done damage to the head gaskets.

A scan tool will give you the temp of the coolant to verify. Please do not assume anything here till you can verify what is happening.

Roy
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Sunday, October 16th, 2011 AT 1:01 AM

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