gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Gauge Does Not Move From Cold When Engine Is Hot|Page 2233 > < Indicator Lamp Remains Illuminated|Page 2228
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Temperature Gauge: Testing and Inspection
Gauge Does Not Move From Cold When Engine Is Hot

    This condition is generally caused by a blown fuse, open circuit or faulty sensor. 

1.

Check fuse, replace if necessary.

2.

Turn ignition switch to On position, then remove lead at sensor unit.

3.

Connect test lamp from sensor lead to ground, lamp should glow. Short sensor lead to ground, gauge should indicate ``Hot.''

4.

If gauge indicated ``Hot'' check lead on sensor, if satisfactory replace sensor. If gauge indicates ``Cold'' replace cluster.

Gauge Does Not Move From Cold When Engine Is Hot|Page 2233 > < Indicator Lamp Remains Illuminated|Page 2228