Temperature gauge not working?

2010 CHEVROLET EQUINOX

160,000 MILES • 2.4L • 2WD • AUTOMATIC

FAYE.M.SHOULDERS

MEMBER
1 POST

temperature gauge reads cold does not move. on dash it says A/C off due to engine temperature for 3 days. reservoir was at fill line now it's over fill line. car starts and drives. upper hose hot and reservoir hose hot.

Jun 17, 2021 at 1:18 PM

JACOBANDNICKOLAS

✓ASE Certified Mechanic
110,193 POSTS

Hi,

Chances are the temperature sensor is bad and therefore, the system, not knowing the temp, assumes it is overheating.

That is the first thing I suspect is the problem. However, make sure it isn't disconnected first and inspect the wiring to it as well as the connector.

If you determine it needs to be replaced, here is a link to help get you started:

https://www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement

If you look at the attachments below, they are specific to your vehicle and the picture shows the location of the sensor.

Let me know if this helps or if you have other questions.

Take care,

Joe

See pics below.

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Jun 18, 2021 at 8:12 PM

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