CNG Fuel Fill Valve - Leaks/Fuel Odors

Article No.
01-23-3

11/26/01

FUEL - BI-FUEL - FUEL LEAK OR FUEL ODOR AT
THE CNG FUEL FILL VALVE AREA

FORD:
1997-2001 E SERIES

ISSUE
Some Dedicated and Bi-Fuel CNG vehicles may exhibit a condition of fuel leak or fuel odor at the CNG Fuel Fill Valve area. This may be caused by the CNG Fuel Fill Valve.

ACTION
If it has been determined that a CNG Fuel Fill Valve may be leaking fuel, replace the fuel fill valve.

Refer to the following Service Procedure for details.

SERVICE PROCEDURE

NOTE
THIS PROCEDURE SHOULD ONLY BE PERFORMED BY A CERTIFIED CNG TECHNICIAN.

NOTE
FOLLOW ALL SAFETY PROCEDURES LISTED IN THE APPROPRIATE WORKSHOP MANUAL.

Removal

1. Perform the Pressure Relief-Fuel Line Venting Procedure, refer to Section 310-00B.

2. Remove the fuel filler valve retaining nut.

3. Remove and discard the hard plastic dust cap.

4. Remove the fuel filler valve from the mounting flange:

a. Disconnect the high-pressure fuel line from the fuel filler valve.

b. Remove the fuel filler valve.

Installation

NOTE
LUBRICATE THE FILL VALVE 0-RING SEAL WITH 5W30 ENGINE OIL MEETING FORD SPECIFICATION WSS-M2C153-G OR EQUIVALENT PRIOR TO INSTALLATION, TO HELP THE SEAL AND EASE THE INSTALLATION.

NOTE
WHEN TIGHTENING THE FUEL LINES, A TORQUE WRENCH ADAPTER MUST BE USED WITH THE TORQUE WRENCH. THE USE OF A TORQUE WRENCH ADAPTER WILL ALTER THE EFFECTIVE TORQUE OF THE TORQUE WRENCH BEING USED. TO CORRECT THE EFFECTIVE TORQUE, A TORQUE MULTIPLICATION CONVERSION MUST BE USED; REFER TO SECTION 310-00B.

1. Remove the dust cap and tether loop from new fill valve.








NOTE
FOR BI-FUEL CNG APPLICATIONS THE 45 DEGREE FITTING SUPPLIED IN THE KIT MUST BE INSTALLED. ORIENTATE THE 45 DEGREE FITTING SO THAT IT ANGLES AWAY FROM THE FILL DOOR BODY FLANGE (FIGURE 2). TORQUE FITTING TO 47-52 N.m (30-40 LB-FT) (FIGURE 1).

2. Install Fuel Fill Valve into mounting flange. Torque retaining nut to 35 N.m (20-30 lb-ft) (Figure 1).

3. Install the high-pressure fuel line to the fuel filler valve. Torque fuel line retaining nut to 38-57 N.m (28-42 lb-ft).

4. Install tether loop and dust cap over end of fill valve above flange retaining nut (Figure 1).

5. Leak check only the fittings removed for Fill Valve Replacement.





Parts Block

OTHER APPLICABLE ARTICLES: NONE

WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATION DESCRIPTION TIME

012303A Replace Compressed 1.0 Hr.
Natural Gas (CNG) Fill
Valve - Dedicated And
Bi-Fuel Vehicles

DEALER CODING
CONDITION
BASIC PART NO. CODE
9C112 42

OASIS CODES: 404000