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Home >> Plymouth >> 1985 >> Turismo Base, 2.2 C, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Standard >> Testing >> Fuel Gauge

Fuel Gauge

  1. Disconnect wire from fuel tank sending unit terminal. Attach wire to a known good sending unit. Connect a jumper wire between sending unit fuel pick-up tube and a good ground.
  2. Retain float arm of sending unit to its empty stop and turn ignition to "ON". After 2 minutes, fuel gauge should read "EMPTY".
  3. Move float arm to its full stop. After 2 minutes, fuel gauge should read "FULL".
  4. If gauge responds properly, sending unit at tank is faulty and should be replaced. Check mounting flange on tank for deformity.
  5. If gauge does not respond, check all wiring and connections, printed circuit-to-gauge terminal connections or voltage limiter performance. If all check out okay, replace fuel gauge.
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