Dash temperature gauge showing over heating

Asked by Oct 10, 2016 at 09:22 PM about the 1995 Chevrolet Astro LT Extended RWD

Question type: Maintenance & Repair

Gauge showing over heating but van is not any
thoughts on problem

1 Answer
80,375

answered about a year ago

Sounds like either the temperature gauge sensor/sending unit is bad or the wire(s) going to it are shorted to ground. Unplug the sensor, for testing purposes, and see if the gauge stays on cold. If so, sensor/sending unit is bad. If the gauge is still pinned on hot check the wiring going to the sensor for a bare spot that's touching metal. If all this checks out, gauge on dash is bad. HTH. -Jim

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