Ford F150 Pickup. Instruction — part 1304

Loosen the air inlet tube clamps. Disconnect the three vacuum lines, PCV closeout, IAB hose and supercharger
vacuum actuator vacuum line and remove the air inlet tube. Disconnect the Mass Airflow (MAF) sensor
electrical connector (1). Remove the 4 screws (2) and remove the MAF sensor (3). To install, reverse the
removal procedure.

Fig. 81: Removing MAF Sensor (Supercharged)
Courtesy of FORD MOTOR CO.

THROTTLE POSITION SENSOR

Removal & Installation

Disconnect negative battery cable. Remove accelerator splash shield, if equipped. Disconnect the Throttle
Position (TP) sensor electrical connector (1). See Fig. 82 . Remove the screws (2) and remove the TP sensor
(3). To install, reverse removal procedure.

NOTE:

Numbers in parenthesis refer to numbers in illustration.

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Removal & Installation - Blackwood, Expedition, F150 Pickup & Navigator - Gasoline

Fig. 82: Removing TP Sensor (Typical)
Courtesy of FORD MOTOR CO.

MOTORS, RELAYS & SOLENOIDS

For component locations, see Fig. 54 .

EVAP CANISTER PURGE VALVE

Removal & Installation

On Blackwood and F150, EVAP canister purge valve is located under body on left side. On Expedition and
Navigator, EVAP canister purge valve is located in left rear of engine compartment. On all models, disconnect
EVAP canister purge valve electrical connector and vacuum control hose. See Fig. 83 . Disconnect 2 fuel vapor
tubes. Remove mounting bolts and remove EVAP canister purge valve. To install, reverse removal procedure.
Perform after repair procedure. See AFTER REPAIR PROCEDURE under EMISSION SYSTEMS & SUB-
SYSTEMS.

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Removal & Installation - Blackwood, Expedition, F150 Pickup & Navigator - Gasoline

Fig. 83: Locating EVAP Canister Purge Valve Electrical Connector & Vacuum Hose
Courtesy of FORD MOTOR CO.

EVAP CANISTER VENT SOLENOID

Removal & Installation

Remove the charcoal canister. See under EMISSION SYSTEMS & SUB-SYSTEMS. Using a twisting and
pulling motion, remove EVAP canister vent solenoid from charcoal canister. See Fig. 84 or Fig. 85 . To install,
reverse removal procedure. Perform after repair procedure. See AFTER REPAIR PROCEDURE under
EMISSION SYSTEMS & SUB-SYSTEMS.

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Removal & Installation - Blackwood, Expedition, F150 Pickup & Navigator - Gasoline

Fig. 84: Locating EVAP Canister Vent Solenoid (Blackwood & F150)
Courtesy of FORD MOTOR CO.

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Removal & Installation - Blackwood, Expedition, F150 Pickup & Navigator - Gasoline