How to Replace a Serpentine Belt on a 2003 Dodge Pickup

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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.

Things You'll Need

  • Socket
  • Socket wrench
  • Replacement belt

Belt removal

  • 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.

  • 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.

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

  • Release the tensioner bolt gradually.

Belt installation

  • Rotate the tensioner pulley in the same manner as above.

  • 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.

  • Release the belt tensioner carefully, allowing the belt to settle in place.

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