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If you ever notice this kind of symptom, we will suggest that you go to a mechanic. Symptom 3: Engine Surging Make sure the WDS is at the latest release level and that the vehicle is updated to the latest calibration. Use the DVOM to test controller power supply fuses and relays. Test and replace blown fuses as required. Fuses should be tested with the circuit loaded.
You can solve this problem by repairing the logic side of your Duramax FICM. If the problem is beyond repair, change the FICM. Installing a new FICM allows for proper control of fuel injection. Excessive SmokeThe leading cause of FICM problems on a Duramax is a dead battery. The low voltage in your dead battery increases the current reaching the FICM. You could think of each fuel injector as a type of solenoid that is opened or closed using battery voltage. When the ignition is ON, constant battery voltage is supplied to each fuel injector. To complete the circuit, and cause each fuel injector to spray a precise amount of fuel at the appropriate time, the PCM supplies an instantaneous ground pulse.
The fuel filter is a part of the injection system, as today’s fuel injectors are close-fitting parts. A fuel filter is usually found on the fuel line to filter out contaminants such as dirt, dust, debris, and rust particles from the fuel. It protects vital engine parts by filtering out foreign particles that potentially damage fuel injectors. #6 Electromagnets Although fuel system filters are installed to prevent contaminants from entering the system, debris can still make its way through them. When the fuel injector won’t shut off or starts to leak, you may experience diminished fuel economy. Therefore, the total cost of diagnosis and fixing the U0105 fault code will depend on the hourly rate charged by the auto repair shop and the estimated repair time required to fix the issue. U0105 Fault Code: Lost Communication With Tcm This can lead a technician to believe that the FICM has malfunctioned when it actually is working as intended.Engine stalling: If your engine is stalling, it could be a sign that the fuel pump is not delivering enough fuel to the engine. Some warning indicators of a failed fuel pump driver module include starting problems, engine stalling, and power surges. If you’re able to identify these signs, you can stop the condition from getting worse and have it fixed. Also known as the shell, this is the outer surface of the fuel injector. Inside the fuel injector, all other parts of the injector are arranged like a garden shower. The injector’s inner surface is designed to have a capillary or passageway through which high-pressure fuel from the fuel pump can flow for further spray. #2 Plunger When the fuel pump driver module is faulty, you may observe that your vehicle’s engine is consuming more fuel than usual. These are all the major symptoms of defective fuel pump driver module. Below are some preventing measure for fuel pump control module failure symptoms. Some Tips For Preventing Fuel Pump Driver Module Failure
B-grade: a tested unit with a cosmetic flaw that will not affect performance or weather resistance. A dent, surface oxidation or receptacle chip is typical. Another sign of a bad FICM on a Duramax is when the fuel injector keeps misfiring. When this happens, the engine can sputter and cause excessive vibration in your vehicle. The injector misfires when starting the engine or running it. Each individual injector is controlled with four driver outputs from the FICM. There are high and low side drivers for the open and close coil of each injector. To avoid relying on guesswork and causing more problems, call a specialist to fix a bad FICM on a Duramax. Where To Get the Best Duramax FICM RepairsThis problem happens because the fuel pump delivers excessive fuel into the engine due to a malfunctioning fuel pump driver module. Consequently, you will have to refill your fuel tank more frequently.
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