How to replaced water pump and thermostat

Tiny
MARYLAN ROSE
  • MEMBER
  • 2005 CHEVROLET IMPALA
  • 3.4L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
Flushed system. Gauge inside stays on zero no matter how long the car has been running.
Thursday, December 5th, 2019 AT 11:24 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
This does not sound like a water pump or thermostat issue. This sounds like an engine cooling temperature sensor issue or possibly wiring.

I would remove the sensor and test it or replace it and see if the gauge is restored.

Here is some info about this. Let me know what questions you have. Thanks

https://www.2carpros.com/articles/symptoms-of-a-bad-coolant-temperature-sensor

https://www.2carpros.com/articles/how-a-coolant-temperature-sensor-works
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Thursday, December 5th, 2019 AT 7:31 PM

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