Operation CHARM: Car repair manuals for everyone.

Fuel Gauge Inaccurate


1. Ensure terminals are clean and terminal connections are tight.
2. Remove sender, using a suitable ohmmeter test sender. At empty position reading should be 1 ohm, at 1/2 full 44 ohms, and 88 ohms at full position.
3. Disconnect front body connector, connect tester J 33431-A or equivalent.
4. Turn ignition switch to On position, if gauge responds accurately, check wiring between rear compartment and front body connector.
5. If gauge reads between one fourth and one half with tester set at 90 ohms, replace cluster.