How to Install a Buick Riviera's Fuel Pump
- 1). Disconnect the negative battery cable from the battery terminal on the Buick using a socket and ratchet.
- 2). Locate the fuel rail on the driver's side of the engine. The fuel rail runs parallel with the valve cover gasket. You will locate a Schrader valve on the end of the fuel rail. Place a shop towel over the valve and press down on the top of the valve with the tip of a screwdriver to release pressure on the fuel system.
- 3). Place a siphon into the gas filler spout and siphon the gas from the tank into a gas can.
- 4). Raise your Buick using a jack and place it on jack stands for security.
- 5). Disconnect the bolts that secure the fuel tank straps using a socket and ratchet. Carefully lower the fuel tank to the ground.
- 6). Remove the fuel hoses connected to the fuel sending unit using a pair of pliers and then unplug the wiring harness from the fuel sending unit.
- 7). Turn the cam lock ring located on the top of the tank counterclockwise by striking the raised tab with a brass rod and a hammer. Do not use a metal rod as this could cause sparking.
- 8). Pull the sending unit out of the tank and unplug the fuel pump from the sending unit.
- 9). Remove the old sending unit O-ring and place a new O-ring in place. Snap the new fuel pump onto the sending unit.
- 10
Place the sending unit onto the fuel tank, place the cam ring on top of the sending unit and lock it in place using the brass rod and hammer. - 11
Connect the hoses and wiring harness to the fuel sending unit. Raise the fuel tank up and secure it using the tank straps, bolts, socket and ratchet. - 12
Drain the fuel back into the gas tank. Reconnect the negative battery cable to the battery terminal using a socket and ratchet.
