The Toyota 4Runner has been an incredibly popular vehicleover its production run. And while the 4Runner is not the most fuel efficient vehicle around, it can return pretty good MPG if it is tuned up regularly and properly maintained. Part of that maintenance is changing the fuel filter every 20,000 to 30,000 miles depending on the use of the vehicle. A clogged fuel filternegatively affects fuel mileage, can make the engine run rough and can eventually lead to a non-starting issue.
Tools Used: Socket set and ratchet, Locking pliers (x2), Pliers, Screwdriver, Rags
Install a Fuel Filter
Loosen and remove the gas cap to relieve the pressure from the tank on the fuel lines. From under the car, locate the fuel tank and follow the fuel lines that come from the tank and to the filter, located below the driver's door bolted to the 4Runner's frame.
Place a pair of locking pliers on the fuel lines where they come out of either side of the filter. Squeeze the lines together to minimize the amount of fuel that will pour out when the lines are removed from the filter.
Loosen the hose clamps that hold the lines to the filter. This may be the type that need a screwdriver to loosen or they may be the type that are loosened by squeezing the ends together with a pair of pliers and sliding them up the fuel line and away from the filter. Pull the fuel lines off of the filter.
Loosen the filter bracket with a socket and ratchet enough to remove the old filter. Install the new filter on the bracket, ensuring that the arrow on the filter is pointing to the front of the car and away from the tank.
Slide the fuel lines onto the filter and tighten the hose clamps. Remove the locking pliers from the fuel lines. Put the gas cap back on.
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