How to Change a Toyota Fuel Filterby Chris Moore
Very few models of Toyota vehicles have an easily removable and replaceable fuel filer; in many cases, it requires a professional. The fuel filter needs changing every two years or 30,000 miles. When working on it or anywhere else in the fuel system, note the fuel pressure and make sure no dirt gets into the system.
Depressurize the fuel system by removing either the fuel pump relay (for V8 models) or the circuit opening relay (V6 models) from the fuse box. With the fuel cap off, start the engine and run it until it stops, then turn off the ignition switch and remove the negative battery cable.
Locate the fuel filter mounted onto one of the fuel rails. Place rags or a metal container on the ground under the filter to catch fuel that will spill during removal.
Check for dirt and debris around the connections for the fuel filter, and clean them away using compressed air. Twist the connectors to help loosen any dirt.
Loosen the fittings on the filter with a flare nut wrench while gripping its stationary fittings with another wrench so you don't twist the lines. If the filter uses quick-connect fittings, unlock this fitting by turning its end and pulling off the flexible line.
Remove the clamp bolt on the filter to remove it and its bracket, then remove the filter from the bracket. Take note of how the filter was mounted; look for an arrow printed on the filter and remember which way it pointed.
Install the new filter within the bracket, and mount it to the fuel rail with the bracket's clamp bolt. If the filter uses regular fittings with the lines, attach them by hand before mounting the bracket.
Tighten the fuel line fittings using the same wrenches. If it uses quick-connect fittings, push them onto the filter until they click into place. Secure the lines by gently pulling on the hose.
- check To repressurize the fuel system, reconnect the battery cable and disconnected relay, then turn the ignition switch to the On position a couple of times, leaving it on for two seconds and then shutting it off for five.
- check Run the engine after installation, and check for any leaks around the fuel filter connections.