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Drive Belt: Description and Operation







Accessory Drive Belt Routing 4.0L SOHC

Accessory Drive System

Accessory Drive Belt Routing

The accessory drive system:4.OL SOHC
^ has a serpentine drive belt with 6 ribs.
^ has an automatic drive belt tensioner.
^ is not adjustable.
^ has a Supercharger (SC) drive belt with 10 ribs (5.4L only).


The accessory drive system provides power to operate components which power other systems. These could include components such as the generator power steering pump and A/C compressor. Each of these components is equipped with a pulley which is driven by the accessory drive belt The accessory drive belt is driven by the engine crankshaft pulley. One or more idler pulleys may be provided to facilitate belt routing and alignment The automatic belt tensioner maintains correct belt tension and compensates for component wear and changes in system load. System load changes can be caused by the A/C compressor clutch engaging or disengaging or demand changes on other systems powered by the accessory drive belt To maintain correct operation of this system it is critical that the correct length drive belt be installed. The pulleys must also be correctly aligned and kept clean.

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