If the noise is from the fuel pump, failure of the pump is often imminent and you should replace the fuel pump at your earliest convenience. As a fuel pump fails, you may notice a whirring or humming noise coming from the fuel tank area, toward the rear of the car. The lack of fuel may result in the engine operating without enough fuel relative to the amount of air, causing the check engine light to appear. parts diagram further fuel pump inertia switch reset and location on ford. Sometimes a fuel pump will fail slowly, and that means the fuel pressure and volume slowly degrades. Low prices on Electric Fuel Pump Inertia Switch for your Mercedes-Benz 300D at. A failed fuel pump may prevent a car from starting or stall it. Car won’t start or unexpectedly stalls and won’t re-start.This failed condition can sometimes be preceded or accompanied by one or more of the following symptoms: If it fails to produce adequate pressure or completely quits operating, it will need to be replaced. However, as with any electro-mechanical component, a fuel pump will eventually degrade and fail. Replacing the fuel pump is not a high labor item, and is easily done, if you have access to a service manual.When to consider replacing the fuel pump?Ī high quality, OEM fuel pump can last indefinitely. The fuel filter may not be the problem, but the filter should be changed.īefore replacing the pump, you, or a tech, should check the fuel pressure at the fuel rail in the engine compartment. Take inventory of the lines before disconnecting. Keep in mind that more fuel is supplied to the injectors than is required, so the excess is returned to the tank. The fuel pump shut-off switch has a red reset. I'm not being smart, as some oafs become disoriented when working on their back (I'm not accusing you of being an oaf). The fuel pump shut-off switch is located behind an access panel on the right side of the luggage compartment. Get vehicle details, wear and tear analyses and local price comparisons. As a reminder, fuel flows from the rear to the front. View 39 Used Ford Expedition cars for sale in Indianapolis, IN starting at 3,995. Pay attention to the flow arrows on the replacement filter before connecting. Have a large rag available to stop the spray. Safety glasses, in case gas wants to spray from the lines. Just break the nut enough to allow any pressure to escape. Just scoot under the rail with open-end wrenches (the nuts vary from 9/16 to 3/4), so be prepared. With the ride height of the vehicle, no jacking should be required. The fuel line is under pressure, but maybe yours isn't with your current problem. It is located on the driver side rail, about mid-vehicle. The in-line fuel filter is different than the one attached to the pump.
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