Ford F150 Pickup. Manual - part 1211

Fig. 93: Removing Fuel Line O-Rings 
Courtesy of FORD MOTOR CO. 

10. Disconnect the fuel pressure regulator coolant supply line. 

 

2003 Ford Pickup F150 

2003 ENGINE Fuel Tank And Lines-Natural Gas - F150 Pickup

  

Fig. 94: Disconnecting Fuel Pressure Regulator Coolant Supply Line 
Courtesy of FORD MOTOR CO. 

11. Disconnect the fuel pressure regulator coolant return line. 

 

2003 Ford Pickup F150 

2003 ENGINE Fuel Tank And Lines-Natural Gas - F150 Pickup

  

Fig. 95: Disconnecting Fuel Pressure Regulator Coolant Return Line 
Courtesy of FORD MOTOR CO. 

12. Remove the low-pressure fuel and fuel pressure regulator coolant line assembly. 

 

2003 Ford Pickup F150 

2003 ENGINE Fuel Tank And Lines-Natural Gas - F150 Pickup

  

Fig. 96: Removing Low-Pressure Fuel And Fuel Pressure Regulator Coolant Line Assembly 
Courtesy of FORD MOTOR CO. 

Installation 

NOTE:

Replace the fuel line O-ring seals.

NOTE:

Lubricate the fuel line O-ring seals with 5W3O engine oil meeting Ford 
specification WSS-M2C153-G or equivalent prior to installation, to help 
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 
TORQUE MULTIPLICATION CONVERSION .

 

2003 Ford Pickup F150 

2003 ENGINE Fuel Tank And Lines-Natural Gas - F150 Pickup