The fuel filter on a 1997 Chevrolet Cavalier is designed to remove impurities from the gasoline before it reaches the engine. This prolongs the life of the fuel injectors and help to provide the engine with the cleanest burning fuel possible, reducing tailpipe emissions. As time passes, these impurities accumulate inside the fuel filter reducing its effectiveness and creating a clog. A clogged fuel filter can cause a number of driveablility symptoms such as poor acceleration and rough idle. Replacement fuel filters are available from auto parts stores and certified Chevrolet dealerships.
Turn off the engine and place the vehicle's transmission in park or first gear (manual). Set the parking brake and open the hood. Disconnect the negative battery terminal with a battery terminal wrench.
Raise the rear of the vehicle using the automotive jack and support it with jack stands. Chock the front wheels.
Crawl underneath the rear of the vehicle and locate the fuel filter. It is on the back side of the fuel tank, just above the rear axle. Place a plastic bucket underneath the fuel filter to catch any fuel that spills out. Place the 20 mm box-end wrench on the fuel filter nut and the flare nut wrench on the fuel filter line fitting. Loosen the fitting until it is free from the fuel filter.
Squeeze the quick release tabs on the flexible fuel filter line and remove it from the filter. Slide the fuel filter out of its holding bracket and remove it from the vehicle.
