
Ensure parking brake is on and start the engine. To disable the fuel pump, first remove the fuel pump fuse from the fuse box. This is done by disabling the electric fuel pump before starting the engine What Is Done During Fuel Filter Replacement?īefore any work is undertaken, the pressure in the fuel line will have to be relieved.

If the engine begins to misfire when it’s under a heavy load, chances are that it’s a problem with the filter. If the filter is plugged it can also cause random cylinder misfires, which can trigger an error code. It will sense a problem with the air and fuel mixture and flag a fault code, which can often lead to a misdiagnosis of the issue. Another common error is for the computer to misinterpret a fuel filter issue as a problem with the oxygen sensor or mass air flow. Other issues caused indirectly by the faulty filter may trigger the check engine light though, such as decreased fuel flow from a clogged fuel filter.
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Most cars don’t include a check engine code for the fuel filter, so it won’t be monitored directly by the car
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For the majority of drivers this will be enough to keep the filter healthy and prevent any possible issues. Most garages will inspect your fuel filter at the annual check up, and if they think it needs replaced they will carry out the work there and then. When Should You Have The Fuel Filter Replaced? Replacing your fuel filter regularly is an inexpensive repair, and could end up saving you a small fortune in the future. There are numerous ways in which dirt and debris can get in to the fuel line, so a working fuel filter is crucial for preventing it causing damage to the engine. Or cover a significant number of miles each month, the filter will need to be replaced on a more regular basis. In general, most mechanics will recommend replacing the filter once a year at the annual service. Replacing your fuel filter regularly is essential for maintaining the health of your engine and protecting it from foreign particles which may cause damage. The filter on a fuel injection system is normally threaded on to the fuel lines, again to keep it secure in the higher pressure environment. This is a high pressure fuel system, so the fuel filter needs to be made from metal to prevent it from breaking. In a car which uses electronic fuel injection, fuel is squirted into each cylinder by the injectors. These fuel filters will typically be made from metal or plastic. The fuel in this system will pass through rubber hoses, and the fuel filter will have an inlet and an outlet tube through which the fuel can pass. A carburetor fueled engine uses a vacuum to suck fuel into the engine, and has a relatively low pressure fuel system. The various types of fuel delivery systems means that fuel filters are different from car to2007 Ford Expedition.

On most care the filter will be found within the engine compartment or close to the fuel tank under the car A properly maintained fuel filter will prevent these issues from occurring, saving you the time and expense of additional

These large particles can also clog the fuel injectors, which would prevent a cylinder from receiving the proper amount of fuel and require a repair or a replacement of the injector. The pistons in the engine compress the air and fuel mixture to allow it to burn more efficiently, and if any large particles make it through there’s a risk it could cause serious damage to the engine. The role of the fuel filter in a car is to trap large particles of fuel before they reach the engine. Some sample costs from major garage chains and online retailers are below. If you want to make the repairs yourself, fuel filters can be ordered online from a variety of retailers. It’s an easy and quick repair to make so labor costs are usually low and the part itself is usually It’s often done as part of theįor most cars as a proactive measure to prevent any future issues.Ĭhanging a fuel filter is a routine repair and the vast majority of garages will be able to do the work for you. There’s usually a fast turnaround time on the repair, meaning most garages won’t charge much for the work. Fuel filters will generally need replaced once a year for most drivers, but those with high monthly mileage may need to replace it more often.Ī fuel filter replacement costs between $ 53 and $ 165 for most cars to have the work done by a mechanic, while you can order the part itself for between $ 14 and $ 60. The fuel filter works to remove any unwanted debris from the fuel line to help prevent it causing damage elsewhere in the engine.
