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Fuel Gauge Indicates Empty When There Is Fuel In Tank (Single Tank - Except 4.3L)

  1. Disconnect fuel pump and sender (gasoline) or fuel gauge sender (diesel) connector. Turn ignition on. If fuel gauge does not indicate empty, replace fuel pump and sender (gasoline) or fuel gauge sender (diesel). If fuel gauge indicates empty, go to next step.
  2. Turn ignition off. Disconnect instrument cluster connector. Connect self-powered test light between instrument cluster connector terminal No. 16 (Purple wire) and ground. See Figure . If test light comes on, repair short to ground in Purple wire between instrument cluster connector and fuel gauge sender. If test light does not come on, replace instrument cluster connector.
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