Ford F150 Pickup. Manual — part 1325

NATURAL GAS VEHICLE MODULE

Manufacturer does not provide a removal and installation procedure.

SENSORS & SWITCHES

FUEL RAIL PRESSURE SENSOR

Manufacturer does not provide a removal and installation procedure. See Fig. 2 .

FUEL RAIL TEMPERATURE SENSOR

Manufacturer does not provide a removal and installation procedure. See Fig. 2 .

FUEL TANK PRESSURE SENSOR

Removal & Installation

Perform FUEL SYSTEM PRESSURE RELEASE under FUEL SYSTEMS. Disconnect the battery ground
cable. Raise and support the vehicle. Disconnect the fuel tank pressure sensor electrical connector (1). See Fig.
3 . Remove the fuel tank pressure sensor (2). To install, replace the fuel tank pressure sensor and spacer "O"
ring seals. Lubricate the fuel tank pressure sensor and spacer "O" ring seals with Super Premium 5W-30 engine
oil prior to installation, to help seal and ease the installation. To complete installation, reverse removal
procedure.

NOTE:

Numbers in parenthesis refer to numbers in illustration.

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Removal & Installation - F150 Pickup - CNG

Fig. 3: Removing Fuel Tank Pressure Sensor
Courtesy of FORD MOTOR CO.

FUEL TANK TEMPERATURE SENSOR

Removal & Installation

Perform FUEL SYSTEM PRESSURE RELEASE under FUEL SYSTEMS. Disconnect the battery ground
cable. Raise and support the vehicle. Disconnect the fuel tank temperature sensor electrical connector (1). See
Fig. 4 . Remove the fuel tank temperature sensor (2). To install, replace the fuel tank temperature sensor "O"
ring seal. Lubricate the fuel tank temperature sensor and spacer "O" ring seals with Super Premium 5W-30
engine oil prior to installation, to help seal and ease the installation. To complete installation, reverse removal
procedure.

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Removal & Installation - F150 Pickup - CNG

Fig. 4: Removing Fuel Tank Temperature Sensor
Courtesy of FORD MOTOR CO.

SOLENOIDS

FUEL RAIL SOLENOID

Manufacturer does not provide a removal and installation procedure. See Fig. 2 .

FUEL TANK SOLENOID

Removal

1. Remove the fuel tank(s). See FUEL TANKS under FUEL SYSTEMS.

2. Remove the retaining screws. See Fig. 5 . Remove the fuel tank solenoid valve electrical connector.

Remove the fuel tank solenoid valve.

CAUTION: When removing the fuel tank solenoid valve electrical connector, it is

possible that the connector pins may disengage from the solenoid
valve.

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Removal & Installation - F150 Pickup - CNG

Fig. 5: Locating Fuel Tank Solenoid Valve Connector
Courtesy of FORD MOTOR CO.

Installation

1. Replace fuel tank solenoid "O" ring seal. Lubricate the fuel tank solenoid "O" ring seal with 5W-30

engine oil prior to installation, to help seal and ease the installation.

2. Check the gap between the solenoid valve and the tank sealing surface in the center portion of each

hexagonal flat with a feeler gauge. See Fig. 6 . The gap must not exceed .002" (.05 mm). The feeler
gauge must be inserted to a depth of .06-.12" (1.6-3.1 mm) to make sure the measurement is accurate. If
the gap exceeds the allowable limit, remove the valve, inspect the sealing surfaces, replace and lubricate
the seal and repeat the tightening and inspection procedure.

3. Install the electrical connector. Install the electrical connector retaining screws. Install the fuel tank(s).

See FUEL TANKS under FUEL SYSTEMS. Perform COMPRESSED NATURAL GAS LEAK TEST
under FUEL SYSTEMS in SYSTEM & COMPONENT TESTING - CNG.

WARNING:

The maximum gap between the solenoid valve and the fuel tank
sealing surface must not be exceeded. If the gap is exceeded, fuel
leakage may occur resulting in a flammable mixture, which could
ignite and cause personal injury.

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Removal & Installation - F150 Pickup - CNG