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Those numbers are trouble codes stored in the PCM's memory and don't directly refer to parts. It's never a good idea to replace parts without first confirming the failure by means of the recommended diagnostic procedure. Code P0463 was set due to a high-voltage fault in the fuel-level sensor circuit. This may be caused by a bad sensor, the powertrain control module, or a short in the applicable circuit. The problem may be a defective fuel level sensor in the fuel tank.

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16y ago
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15y ago

P0483-FAN SPEED When Monitored: While the engine is running. Set Condition: The actual fan speed is less than 75 RPM or more than 4000 RPM. The computer controlled fan clutch has failed.

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Q: What causes Code P0463 on a 2001 Dodge Ram 2500 diesel auto?
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