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This book will guide you to diagnosis and repair Mitsubishi eclipse fuel supply trouble, The fuel tank is located under the floor of the rear seats to provide increased safety and a wider luggage space. A plastic fuel tank has been adopted to reduce weight, and improve anti-corrosion effectiveness. A fuel pump module, which unifies fuel pump, fuel filter, reservoir cup and fuel gauge unit, has been adopted to lighten weight and improve serviceability. Fuel supply diagnosis : The fuel supply device is used to supply an appropriate mixture to the engine. The device is configured of the fuel tank, fuel filter, fuel pump and the fuel pipe that couples each part. An evaporative emission control system is also provided to prevent pollution from the evaporated fuel. Troubleshooting strategy : Use these steps to plan your diagnostic strategy. If you follow them carefully, you will be sure that you have exhausted most of the possible ways to find a fuel supply fault. Symptom table : Engine malfunctions due to insufficient fuel supply, Evaporative emission control system malfunctions (when fuel cap is removed, pressure releasing noise is heard). Inspection procedure : Check for bending, twisting or clogging of the fuel pipe or hose. Check for clogging of the fuel filter or intank fuel filter. Check whether water has entered the fuel filter. Check the inside of the fuel tank for contamination and rust. Check the fuel pump module operation. Inspection Procedure : Evaporative emission control system malfunctions (when fuel cap is removed, pressure releasing noise is heard). Check that the vapor line piping is correct. (hose not damaged, no kinks, etc.) Check for breakage, bending or clogging of the vapor line. Check the operation of the fuel tank pressure control valve. Fuel Pump Module replacement : Remove the rear seat cushion. (Refer to GROUP 52A) ? Rear seat. Install the packing to the fuel tank, and then install the fuel pump module to the fuel tank. Installing the packing to the fuel pump module will damage the packing lip when installing the fuel pump module to the fuel tank, and fuel leakage will occur.

Tags : plastic fuel tank, emission control system, pressure control valve, rust check, mitsubishi eclipse, evaporative emission control system, luggage space, fuel gauge, diagnostic strategy, tank pressure, tank fuel, fuel pipe, system malfunctions, fuel supply, pump fuel

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