GMC 15239258 Tank Assembly, Fuel

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The fuel tanks used in vehicles are not repairable. When they break, they need to be replaced. A professional with the appropriate training should clean the fuel tank, especially if it is contaminated by fuel, as this task is decisive and may be dangerous. Explosive fumes might still be found inside the fuel tank after cleaning and flushing processes are completed. If the fuel tank is removed from a car, do not put it in a place where there are sparks or open flames to spark fumes from its mouth. Special care should be taken in garages with gas appliances.

If necessary, clean the fuel tank and areas surrounding the fuel lines and hoses to prevent contaminating the fuel system. Remove the fuel tank filler cap to relieve fuel tank pressure. Relieve the fuel system pressure. Disconnect the cable from the negative battery terminal. Using a siphoning kit (available at most auto parts stores), siphon the fuel into an approved gasoline container. Raise the vehicle and support it securely on jackstands. Remove the left rear fenderwell liner. Disconnect the fuel supply line (and return line on 2004 and 2005 models). On all models, disconnect the EVAP vapor lines from the vapor canister. Note: For information on quick-connect fitting disconnection. Remove the fuel filler hose from the tank. Disconnect the electrical connectors from the tank pressure sensor, fuel pump module and the EVAP vent valve. Position a transmission jack under the fuel tank and support the tank. There is one tank strap at the front that is over the tank, and one strap at the rear that goes under the tank. Unscrew the fuel tank strap bolts and remove the straps (Remove the fuel tank strap bolts-front strap bolt shown). Lower the jack and remove the tank from the vehicle. An assistant would be helpful. while doing this. Installation is the reverse of removal.

Extra caution should be exercised inside a garage where a gas-type appliance is located.