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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 315 (Fuel System) >> Fuel Delivery, Gas >> Standard Procedure >> Draining Fuel Tank >> Conventional Procedure

Conventional Procedure

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
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.
NOTE: Due to a one-way check valve installed into the fuel fill fitting at the tank, the tank cannot be drained at the fuel filler tube.
CAUTION: If the electric fuel pump is not operating, and the fuel level is above 5/8 of a tank, the fuel tank must be removed prior to draining. If the fuel level is above 5/8 of a tank and the fuel pump module lock-ring is removed, fuel will spill into the interior of the vehicle.
CAUTION: If the fuel level sending unit is not operating, and the fuel level cannot be determined the fuel tank must be removed prior to draining. If the fuel level is above 5/8 of a tank and the fuel pump module lock-ring is removed, fuel will spill into the interior of the vehicle.
Fig 1: Fuel Line Quick-Connect Fitting
GC0088122Courtesy of CHRYSLER LLC
  1. Perform the fuel system pressure release procedure. See Fuel System/Fuel Delivery - Standard Procedure .
    NOTE: Tool number 6539 is used on 5/16" fuel lines while tool number 6631 is used on 3/8" fuel lines.
  2. Attach one end of the special test hose 6631 or 6539 at the fuel line quick-connect fitting (1).
  3. Attach the opposite end of the special test hose 6631 or 6539 to the Fuel Chief Gas Caddy 320-FC-P30-A or an OSHA approved gas caddy.
  4. Using a diagnostic scan tool, activate the fuel pump until the fuel tank has been evacuated.
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