How to Replace a Fuel Filter
Its the fuel filters job to catch the smallest of particles that shouldn't go with your fuel into the engine. These contaminants include chips of rust, metal filings, pollen, and other particles that could get into the fuel system through leaks in the system and during fuel refills at gas stations. Once these particulates travel down to the intake ports, they could clog the fuel injectors and ruin the engines combustion efficiency. The engine would run on a thin air-fuel mixture and produce less power for your ride.
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So make sure that the fuel filters doing it's job in your ride. If it stops doing that, getting a new one is your best bet. Replacing your fuel filters quite easy. Just make sure that the engine is in room temperature or is cool enough to touch. Use safety goggles and vinyl gloves to avoid unwanted contact with the fuel. And since you'll be working with the most inflammable fluid in your ride, it would be best to have a fire extinguisher close at hand. To remove and install a fuel filter, just follow the steps below.
1. Relieve pressure from the fuel system by removing the fuel pump fuse or relay. The relay can be found in the engine compartment while the fuse can be found under the dashboard on the drivers side. Switch on the ignition and let the engine run on idle until it goes off on it's own. For safety, disconnect the negative cable from the battery.
2. Locate the fuel filter. This could be quite tricky since in some vehicles, the filter is located under the hood, while in others it's located under the vehicle. You can consult your car owners manual if you can't find the fuel filter in your ride. If you know well what the filter looks like and you can't find it in the engine bay, then most probably it's located under the chassis. If that's the case, all you have to do is jack up your car or place it on ramps. You can crawl underneath and trace the hard lines coming from the fuel tank. The filter should be located just along those pipes.
3. Once you have located the fuel filter, place a drip pan on the floor beneath the fuel filter. This is to catch the fuel that would spill out when you do the next step.
4. Detach the fuel lines connected to the filter using two open-end wrenches or vise grips. (It would be best to wrap the pipes with cloth to protect them from vise grips teeth.) Remove the hose clamps using pliers.
5. Remove the bolt/s that secure/s the fuel filter mounting bracket to the cars body.
6. Slide the filter out of the mounting bracket.
7. To install the new filter, just do the previous procedures in reverse: Put the new filter into the fuel filter holder and re-install the bolts that you have removed earlier. Make sure the filter is snug and secure in it's bracket when you tighten the bolts.
8. Before reconnecting the fuel lines to the filter, however, do some inspection and cleaning. See that there's no debris or dirt on the connections and fittings. Also, replace o-rings with new ones. And if the fuel lines connect to the filter via a banjo type of fitting, it's recommended that you also replace the washers on them.
9. Put back the negative cable onto the battery terminal.
10. If you've made sure that all connections are secure, start the vehicle and let it idle or drive it for a short stretch. Then turn the engine off and check for leaks. If there's none, then you're done.
Now, you need not be told that it's important that you check and service your fuel filter regularly. You can perform fuel filter servicing at the intervals specified by the car manufacturer on your auto owners manual. Or if you want, you can ask your mechanics recommendation. Some set the service interval for the fuel filter at 25,000 to 35,000 miles.
Others make it a point to replace their fuel filters every year or every six months. So, it's really your choiceunless, of course, your fuel filter suddenly gave up, because in that case you've no choice but to replace it if you still want to be able to enjoy a good drive on your ride. For more information on fuel filters, you can check this (http://en.wikipedia.org/wiki/Fuel_filter) out.
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Posted in Automotive repair Post Date 04/12/2017