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Home >> Pontiac >> 1981 >> T1000 2D Hatchback, Automatic Trans >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Switches, Gauges & Instrument Panels >> Testing >> Fuel Gauge

Fuel Gauge

  1. With ignition switch in "OFF" position, disconnect sender wire (Pink) in rear compartment. Turn ignition to "ON" position and gauge should read past "FULL".
  2. Use a jumper wire and short body side of harness connector to ground. Gauge should read past "EMPTY".
  3. If steps  1 and  2 are OK, trouble is in the sending unit or wiring connector at tank.
  4. If steps  1 and  2 are not OK, remove gauge from cluster and reconnect wire in rear compartment.
  5. Check the 3 terminals on the back of the gauge. With ignition "ON", one should have 12 volts, one grounded, and the other measure from 0 to 90 ohms. If all check OK, replace gauge. If not, repair wiring to gauge.
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