C 2500 Suburban 2WD V8-6.5L DSL Turbo VIN F (1995)
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.
