Draining Procedure
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
- Open the fuel filler door and remove the gas cap.
- Insert the siphon hose guide/funnel into fuel filler pipe.
- Insert the J 43290 into the guide funnel and into the fuel filler pipe. See Special Tools . Some resistance may be encountered when the tip of the siphon hose reaches the inlet check valve. Repeated probing may be necessary to slide the hose tip through the check valve cage.
- Begin the fuel siphoning process. Place the fuel into an approved fuel container.
- Remove the siphon hose from the fuel filler pipe after the draining is complete.
CAUTION:
Do not allow smoking or the use of open flames in the area where work on the fuel or EVAP system is taking place. Anytime work is being done on the fuel system, disconnect the negative battery cable, except for those tests where battery voltage is required.
NOTE:
Do not attempt to insert any other type of siphon hose or tube into the fuel filler pipe. The design of the inlet check valve restricts insertion of a hose and, most importantly, prevents removal of this hose. If the siphon hose becomes stuck in the check valve, the fuel filler pipe will not be able to be removed from the fuel tank without damage to the fill pipe or fuel tank.
IMPORTANT:
The siphon hose will reach the bottom of tank within about 10 inches of the end fitting, and tag. When connecting the siphon hose to another length of hose connected to fuel drain tanker, DO NOT insert siphon hose into fill pipe funnel past the tag at the fitting end. If inserted too far, the upper portion of the siphon hose may pass through the check valve cage and then jam on attempted removal.
CAUTION:
Whenever fuel lines are removed, catch fuel in an approved container. Container opening must be a minimum of 300 mm (12 in) diameter to adequately catch the fluid.
IMPORTANT:
The fuel flow rate from the siphon hose will range from 0.3 gal/min up to 1 gal/min, depending on whether it is gravity siphoned or with an air-powered pump.