Question about 2005 GMC Envoy
In all probability the thermostat stopped working, and it is not blocking the flow of fresh water from radiator. The only way i can think a sensor might lower engine temp, is by tripping the fans continuously, and even then a thermostat in good working order would block water flow, and let engine reach normal operating temperature. With the engine idling, in park, with the a/c off, if the temp is low, look in the engine bay, and make sure that the fans are NOT working.
Posted on Sep 17, 2010
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Posted on Jan 02, 2017
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