Caprice Wagon V8-350 5.7L (1994)
Fuel Gauge: Symptom Related Diagnostic Procedures
Fuel Gauge Inaccurate
Tester BT-6508 or equivalent must be used to diagnose dash gauge malfunction.
1. Ensure battery is fully charged, disconnect electrical connector to tank unit and connect tester to between harness connector and suitable ground
following manufacturer's instructions.
2. Set tester on empty then turn on ignition. Gauge should read empty or below.
3. Set tester on full. Gauge should read full or above.
4. If gauge does not respond to tester input, replace dash gauge. If gauge responds correctly, check for poor connections at tank unit, poor tank unit
ground or defective tank unit.
Fuel Gauge Is Inaccurate or Inoperative
Fig. 103 Chart 1: Fuel Gauge Inoperative Or Inaccurate (Part 1 Of 2)
