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Gauge Stays At "F" (Full)

  1. Disconnect fuel tank sending unit connector. Turn ignition on. Connect one Red lead of Instrument Panel Tester (J-33431) to terminal "B" (Purple/White wire) of sending unit harness connector, and connect other Red lead to ground. Adjust tester dial to 40 ohms. If gauge indicates "E", replace sending unit. If gauge indicates "F", go to next step.
  2. Turn ignition off. Disconnect Blue VCM connector. Turn ignition on. Connect a fused jumper wire between terminal No. 9 (Purple wire) of VCM harness connector and ground. If gauge indicates "E", replace VCM. If gauge indicates "F", go to next step.
  3. Check purple wire resistance. Repair as necessary. If Purple wire is okay, replace fuel gauge.
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