Ford F150 Pickup. Manual — part 1016

Fig. 10: Identifying V-Ribbed Serpentine Drive Belt With Chunks Of Rib Missing
Courtesy of FORD MOTOR CO.

SYMPTOM CHART

2003 Ford Pickup F150

2003 ENGINE Accessory Drive - F150 Pickup

Fig. 11: Accessory Drive Trouble Symptom Chart
Courtesy of FORD MOTOR CO.

COMPONENT TESTS

Belt Tensioner

NOTE:

Tensioners are shown in free-state position against arm travel stops.

2003 Ford Pickup F150

2003 ENGINE Accessory Drive - F150 Pickup

Fig. 12: Identifying 4.6L & 5.4L Drive Belt Tensioner/Belt Length Indicator With A/C
Courtesy of FORD MOTOR CO.

2003 Ford Pickup F150

2003 ENGINE Accessory Drive - F150 Pickup

Fig. 13: Identifying 4.6L & 5.4L Belt, Drive Tensioner/Belt Length Indicator Without A/C
Courtesy of FORD MOTOR CO.

Automatic tensioners are calibrated at the factory to provide the correct amount of tension to the belt. Unless a

2003 Ford Pickup F150

2003 ENGINE Accessory Drive - F150 Pickup