Your 1995 Buick Riviera is one of a few models equipped with a fuel filter that uses a quick-connect fitting at the bottom and a threaded fuel fitting at the top. When disconnecting the line-retaining nut at the threaded fitting, you need to use a flare wrench to avoid rounding off the nut and having to replace the whole fuel line. Still, with the necessary precautions and using the right tools, you can replace the fuel filter of your 95 Riviera in your own driveway.
Tools Used: Tools, Wrench, Clean shop rags, Fuel pressure gauge, Container, Floor jack, Jack stand, 2 chocks, Flare wrench, Ratchet, Socket, Clean engine oil
Replace the Fuel Filter
Relieve the Fuel System Pressure
Disconnect the ground battery cable using a wrench. This is the one hooked to the battery post with the negative (-) sign next to it. Loosen the fuel filler cap. Wrap a clean shop rag around the fuel pressure test port and connect a fuel pressure gauge with a bleeder hose to the test port located on the fuel rail. The rail is where the fuel injectors connect to and the test port is a valve similar to the air valve on your Riviera tires.
Insert the gauge bleed hose into a suitable container and open the gauge bleed valve. Allow the fuel to drain into the container and then close the gauge bleed valve. Remove the pressure gauge from the test port.
Remove the Fuel Filter
Jack up the front, driver side wheel using a floor jack and support the vehicle on a jack stand. Chock the rear wheels and apply the parking brake. Locate the fuel filter under the driver side of the vehicle by the seating area and behind the engine.