Ford F150 Pickup. Instruction - part 988

Fig. 833: Installing Fuel Injectors - 5.4L 
Courtesy of FORD MOTOR CO. 

3. Install the fuel injectors into the fuel injection supply manifold.  

4. Install the fuel injection supply manifold. 

 

2003 Ford Pickup F150 

2003 ENGINE Engine - 4.6L & 5.4L - F150 Pickup

  

Fig. 834: Installing Fuel Injection Supply Manifold - 5.4L 
Courtesy of FORD MOTOR CO. 

 

2003 Ford Pickup F150 

2003 ENGINE Engine - 4.6L & 5.4L - F150 Pickup

  

2003-04 ENGINE COOLING

Specifications & Drive Belt Routing - Blackwood, F150 Heritage Pickup & F150 Pickup 

ADJUSTMENTS 

BELT ADJUSTMENT 

Inspect belt for fraying. If fraying has occurred, ensure belt and tensioner are aligned properly. See Fig. 1 . If 
tensioner has reached its limit of travel, belt is excessively stretched and replacement of belt is required. If 
excessive noise is noticed from tensioner or idler, check for possible bearing failure. With the engine running, 
visually observe the grooves in the pulleys (not the pulley flanges or the pulley forward faces) for excessive 
wobble. Install new components as necessary. Check all accessories, mounting brackets, and the drive belt 
tensioner for any interference that would prevent the components from mounting correctly. Correct any 
interference condition and recheck the drive belt tracking. Tighten all accessories, mounting brackets, and the 
drive belt tensioner retaining hardware to specification. Recheck the drive belt tracking. 

Automatic tensioners are calibrated to provide correct amount of tension to belt for an accessory drive system. 
Unless a spring within tensioner assembly breaks, or some other mechanical part of tensioner fails, there is no 
need to check tensioner for correct tension. Tension is within specification if tensioner pointer is within 
indicator markings. See Fig. 2 and Fig. 3 . 

Fig. 1: Aligning Serpentine Belt 

CAUTION: Incorrect drive belt installation will cause excessive drive belt wear and 

may cause the drive belt to come off the drive pulleys.

 

2003 Ford Pickup F150 

2003-04 ENGINE COOLING Specifications & Drive Belt Routing - Blackwood, F150 Heritage Pickup & F150 Pickup

  

 

2003 Ford Pickup F150 

2003-04 ENGINE COOLING Specifications & Drive Belt Routing - Blackwood, F150 Heritage Pickup & F150 Pickup

  

Courtesy of FORD MOTOR CO. 

Fig. 2: Locating Tensioner Wear Indicator (4.6 & 5.4L With A/C) 
Courtesy of FORD MOTOR CO. 

 

2003 Ford Pickup F150 

2003-04 ENGINE COOLING Specifications & Drive Belt Routing - Blackwood, F150 Heritage Pickup & F150 Pickup