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Home >> Pontiac >> 1986 >> Fiero Base, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Electronic >> Testing >> Fuel Gauge

Fuel Gauge

  1. Disconnect fuel gauge sender wire at rear body connector and connect Tester (J-24538-A) to sender wire and to ground. Turn ignition on.
  2. If gauge responds to tester accurately, check rear body connectors and wires to sender. If okay, replace sender. If not, repair wire or connector.
  3. If gauge responds, but not accurately, remove gauge and check for loose nuts at gauge terminals. If loose, tighten nuts and reinstall gauge. If tight, replace gauge.
  4. If gauge does not respond, disconnect front body connector. Connect tester to lead that goes to gauge. If gauge responds to tester accurately, check wiring between rear compartment and front body connector.
  5. If gauge does not respond, remove gauge and check for bad connections at gauge terminals or instrument cluster connector. If connections are good, replace gauge. If connections are bad, repair connections and reinstall gauge.
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