My temp Guage is stuck on the cold all the time it use to go from normal to cold now it stays on cold

Asked by GuruNC87C Oct 27, 2019 at 12:25 PM about the Chevrolet Trailblazer

Question type: Maintenance & Repair

Thermostat stuck

2 Answers

126,145

This can be a thermostat that is stuck open, a bad coolant temperature sensor, or a bad connection at the coolant temperature sensor. Is the check engine light or service engine soon light on? If so, the problem is most likely a stuck open thermostat. Hope that helps! Jim

5,705

Hook up a scanner and see what the real temperature is. If temp is within range, around 195, it will be your temp sensor. 02-05 on the I6 engine, temp sensor is right above thermostat, might as well replace both since you're there. 06-09, it moved locations to passensger side way in the back on the block.

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