Diesel Data: Automotive Repair

Fuel Tank Mounting Straps: Service and Repair

FUEL TANK SUPPORT STRAPS

REMOVAL

1. WARNING:
- Do not modify the fuel system configuration or components or install new components with parts not specifically designed for use with natural gas. Ford Motor Company has specifically designed the materials, components and system configuration for the 4.6L (2V) Crown Victoria natural gas vehicle, and each particular system is precisely calibrated for efficient operation. The use of different parts or materials could produce an untested configuration that could result in fire, personal injury or property damage.
- The fuel system will remain pressurized after engine shutdown. This pressure must be relieved before servicing any part of the fuel system, or personal injury or property damage can result.
- Eye protection is required when removing or installing fuel system components to avoid possible injury.


NOTE: The support straps are part of the fuel rack assembly. The fuel tanks can be removed for service, but a new fuel rack must be installed if there is damage to the support straps or the rack assembly itself.

Remove the rear, upper, or lower fuel tank rack assemblies as necessary.

2. On the rear or upper fuel tank rack assemblies, remove the vapor vent box.
3. On the rear, upper or lower fuel tank rack assemblies, remove the fuel/vent tubes as necessary.







4. NOTE: If the fuel tanks are going to be re-used, mark their location relative to the support straps with a grease pencil to make sure of correct alignment upon installation.

Remove the bolts securing the straps together. Swing the straps outward on their hinges to access the fuel tanks.







5. NOTE: If the fuel tanks are going to be re-used, mark their location relative with the support straps with a grease pencil to make sure of correct alignment upon installation.

On the lower rack assembly, remove the two bolts securing the support straps together. Swing the support strap up on the hinges to gain access to the fuel tanks.

6. Remove the solenoid valves if necessary to remove the fuel tanks.

INSTALLATION

1. NOTE: Install new O-ring seals on fittings that are disconnected. Use only approved O-ring seals which contain a yellow identification stripe.

To install, reverse the removal procedure.

2. Pressurize the fuel system.
1 Turn the jack screws counterclockwise until resistance is felt.
2 Turn the ignition switch to the RUN position.