2001 GMC Yukon XL 1500 Fuel Line

The procedure is to remove the caps from the fuel pipes, connect the rear fuel feed pipe and the rear fuel return pipe to the fuel sender and the fuel tank clips, and install the fuel tank.

The proper way is to remove the caps from the fuel pipes and install the fuel pipes and the fuel tanks.

When replacing the fuel pipes, you shall always replace them with original equipment or parts that meet the GM specifications for those parts. You must not use copper or aluminum tubing to replace steel tubing. Only tubing meeting the 124-M specification or its equivalent is capable of meeting all pressure, corrosion, and vibration characteristics necessary to ensure the durability standard required.

The proper way is to remove the fuel tanks, note the position of the fuel pipes for aid in installation, remove the fuel pipes from the retaining clips, and cap the fuel pipes to prevent possible fuel system contamination.

The procedure is to clean all the fuel pipe and hose connections and the surrounding areas before disconnecting, remove the fuel tank, the rear fuel feed pipe, and the rear fuel return pipe, and cap the fuel pipes.