2005 Mitsubishi galant fuel filter location? - Answers Fuel Filter Location The fuel filter is located along the frame rail under the vehicle and is accessible only from underneath the vehicle. Where is the Fuel filter location on a 2005 Malibu How to Change the Fuel Filter on Mitsubishi Cars | It The fuel filter is located at the rear passenger side of the engine compartment, bolted to the firewall. Loosen and remove the main line into the bottom of the fuel filter, using two line wrenches. Use one wrench to turn the nut on the line, and the other to hold the connector on the fuel filter.