How to Replace Your Car or Truck's Fuel Filter

Step 1:  Gather the necessary tools.
For this job, you'll need a ratchet set, a set of different sized flat-head and Phillips screwdrivers, and a couple of regular old #2 pencils (you heard that right), and of course a new fuel filter.

Step 1: Find your vehicle's filter.
Finding your car or truck's fuel filter is often a little tricky.  It is usually located near the top middle part of your vehicle's engine, near the air filter.  However, in newer cars it is occasionally built into the gas tank.  If that is the case with your vehicle, you will probably be better off leaving this job to an independent mechanic or one at your local dealer.

Step 2: Pop off any plastic covers from your engine.
To make accessing the fuel filter easier, it is a good idea to pop off any large plastic covers from the top of your vehicle's engine with a screwdriver before starting.

Step 3: Find the fuel line.
Once you have a clear view of your vehicle's engine, look for the fuel line.  It comes into your engine from the rear of your vehicle, because this is where the gas tank is located.  It is usually a soft tube that is similar in diameter to your finger.  The fuel filter is attached to the line.

Step 4: Disconnect and plug the fuel line.
Now that you have found the fuel filter, disconnect the fuel line from it.  It is usually attached by a small clamp that you can take off with a screwdriver.  Then quickly insert one of your pencils into the line to keep gas from pouring out all over the place.  Make sure to eyeball the line first to make sure that a pencil will be wide enough to plug it up.  If you don't think that it will be, find something thicker to use.

Step 5: Remove the fuel filter.
The fuel filter is usually attached to vehicles' engines by several small bolts.  Use your socket wrench to remove the bolts and pull the filter off.

Step 6: Disconnect the other end of the fuel line.
After the fuel filter has been removed from the engine, disconnect and plug the other end of the fuel line like you did with the first end.

Step 7: Install the new fuel filter.
Now place the new fuel filter into your vehicle, making sure to place it just like the one that you removed was situated.  It is important to note the direction that fuel will flow through the filter and to make sure that it is pointing in the right direction.

Step 8: Fasten the filter down.

Step 9: Reattach the fuel lines.
Make sure to push the rubber fuel line onto the new filter as far as you can.  Make sure to position the claps so that they securely hold the fuel line on and are nice and tight.  If the fuel line hoses look brittle or worn you may end up having to replace them, but that's a job for another day.

Step 10: Replace any plastic covers that you removed earlier.

Step 11: Test it out.
Now start your car up, let it run for a few minutes, and look for any fuel leaks.  If there aren't any, you're all done.

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