3406E, C12, C15 and C18 Marine Engines Caterpillar


E053 Low Fuel Pressure Warning

Usage:

C-12 9HP
Conditions Which Generate This Code:

The fuel pressure is below the trip point. Refer to Troubleshooting, "Event Codes" for the trip point.

System Response:

The Electronic Control Module (ECM) will log the event.

  • There are no performance effects.

Test Step 1. Check the Fuel System's Components

  1. Check the fuel level in the fuel tank. Ensure that the vent in the fuel cap is not filled with dirt.

  1. Check all fuel lines for fuel leakage. The fuel lines must be free from restrictions and faulty bends. Verify that the fuel return line is not collapsed.

  1. Install a new fuel filter.

  1. Cut the old filter open with the 175-7546 Oil Filter Cutter Gp. Inspect the filter for excess contamination. Determine the source of the contamination. Make the necessary repairs.

  1. Service the primary fuel filter (if equipped).

  1. Operate the hand priming pump (if equipped). If excessive resistance is felt, inspect the fuel pressure regulating valve. If uneven resistance is felt, test for air in the fuel.

Expected Result:

There is a problem with the fuel system.

Results:

  • OK - There is a problem with the fuel system.

    Repair: Make the necessary repairs. Verify that the repair eliminates the problem.

    STOP

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