Procedures
DRAINING FUEL TANK
Special Tools:
Conventional Procedure
WARNING: The fuel system is under constant high pressure even with engine off. Until the fuel pressure has been properly released from the system, do not attempt to open the fuel system. Do not smoke or use open flames/sparks when servicing the fuel system. Wear protective clothing and eye protection. Make sure the area in which the vehicle is being serviced is in a well ventilated area and free of flames/sparks. Failure to comply may result in serious or fatal injury.
WARNING: No sparks, open flames or smoking. Risk of poisoning from inhaling and swallowing fuel. Pour fuel only into appropriately marked OSHA approved containers. Wear protective clothing. Risk of injury to eyes and skin from contact with fuel.
Due to a one-way check valve installed into the fuel fill fitting at the tank, the tank cannot be drained at the fuel fill cap.
1. Perform the fuel system pressure release procedure Service and Repair
2. Disconnect the fuel supply line (1) from the fuel rail Service and Repair
3. Install the appropriate fuel line adapter fitting from the (8978A) to the fuel supply line. Route the opposite end of this hose to an OSHA approved fuel storage tank such as the JohnDow Gas Caddy 320-FC-P30-A or equivalent.
NOTE: Activation of the fuel pump module may time out and need to be restarted several times to completely drain the fuel tank.
4. Using a diagnostic scan tool, activate the fuel pump module until the fuel tank has been evacuated.
Alternative Procedure
NOTE: If the electric fuel pump is not operating, the fuel tank must be drained through the fuel pump module opening of the fuel tank.
1. Disconnect and isolate the negative battery cable.
2. Remove the fuel pump module Fuel Tank - Removal.
3. Position a 3/8" hose into the fuel pump module opening of the fuel tank.
4. Attach the opposite end of this hose to an OSHA approved fuel storage tank such as the JohnDow Gas Caddy 320-FC-P30-A or equivalent.
5. Using the gas caddy, evacuate the fuel tank.