How to Replace a Serpentine Belt on a 2003 Dodge Pickup

by Matthew Ferguson

Some vehicles employ multiple belts to drive the engine accessories. Conveniently, the 2003 Dodge pickup uses just one--a serpentine belt. The serpentine belt follows a circuitous path along the front of the engine, passing over the various engine accessory pulleys. For a 2003 Dodge pickup, the serpentine belt should be checked every 6,000 miles or six months, and replaced if frayed or worn. A worn belt will have a shiny (glazed) appearance due to friction caused by operation.

Belt removal

Step 1

Open the hood of the vehicle after turning the engine off. Locate the tensioner assembly. Like the engine accessories surrounding it, the tensioner features a pulley, over which the serpentine belt passes. There is a bolt at the center of this pulley.

Step 2

Rotate the bolt, using a socket wrench, to release tension on the belt. For standard Dodge V6 and V8 models, the tensioner will rotate clockwise. For heavy-duty V8 and V10 Dodge pickups, the tensioner will rotate counter-clockwise.

Step 3

Separate the loosened serpentine belt from each pulley, then remove the belt from the engine compartment.

Step 4

Release the tensioner bolt gradually.

Belt installation

Step 1

Rotate the tensioner pulley in the same manner as above.

Step 2

Route the replacement serpentine belt over the various pulleys. If you're unsure of the proper routing, study the belt routing decal printed on the top of the radiator.