If the engine isn’t getting adequate fuel, it won’t have the proper air-fuel ratio in the combustion chamber - leading to inefficient combustion. Many things can cause misfiring, including a malfunctioning fuel pump. So don’t ignore a fuel pump replacement! 4. Ignore the issue, and eventually, your car simply won’t start. Start-up may take a few seconds longer than usual, or you’ll need a few attempts to get the engine cranked. If the fuel pump can no longer supply the required fuel to the engine, your car will experience starting difficulties. In any of these cases, you may need a new fuel tank pump. A less noticeable fuel pump issue can be a decrease in gas mileage. Also, if the fuel delivery issue is erratic, you might experience surging or sputtering. There could be a loss of power if your car’s fuel pump can’t provide the engine with sufficient fuel. Note : Any of these sound issues may trigger the check engine light on the dashboard. In general, any weird sound from your car is never good, so always pay attention. Backfires and sputtering engines can also suggest a broken fuel pump. Whining from the fuel tank can indicate a dying pump. Remove the fuel pump module as an assembly from the fuel tank.Here are some bad fuel pump indicators demanding a fuel pump replacement: 1. Install fuel pump module lock ring tool 9340 (1) and turn counter-clockwise to remove the fuel pump module lock ring (2).Ħ. Clean the area around fuel pump module with suitable cleaner and dry with low pressure filtered compressed air.ĥ. Failure to clean fuel pump area prior to removal may cause dirt to get into the fuel system causing damage to the fuel system and/or engine.Ĥ. Disconnect fuel line (2) quick connect from fuel pump module (3).ĬAUTION: Clean the area around fuel pump module prior to removal. Disconnect electrical connector (1) from fuel pump module (3).ģ. Remove fuel tank,See: Fuel Tank > Removal and Replacement > Fuel Tank - Removal.Ģ. I attached pictures of the module for you below.ġ. It is not like the older vehicles that have external filters. The fuel filter is part of the fuel pump module itself.
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