GM 25660914 Tank Assembly, Fuel

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Start by relieving the fuel system pressure and detaching the cable from the negative terminal of the battery.

A professional with expertise in this task should be entrusted with these repairs.

It is imperative to avoid placing the tank in an environment where sparks or open flames could come into contact with the emitted fumes.

To remove the fuel tank, start by relieving the fuel system pressure and detaching the cable from the negative terminal of the battery. If the tank is full, use a hand-operated pump to remove as much fuel as possible. Then, drain the tank through the filler neck. Loosen the lug bolts for the left rear wheel, raise the vehicle, and remove the wheel. Inside the wheel well, remove the cover and loosen the hose clamp securing the fuel tank filler neck. Disconnect the EVAP hose, fuel supply and return lines, and any sensor links. Remove the exhaust system and rear suspension support assembly if necessary. In the trunk, remove the spare tire cover, jack, and carpeted rear compartment floor trim. Remove the access plate and disconnect electrical connectors and quick-connect fittings. Support the tank with a floor jack and plywood, then remove the bolts securing the tank straps. Lower the tank and disconnect any remaining connections before removing the tank. To install, simply reverse the removal steps.