How to Tighten the Drive Belt on a 1999 Dodge Caravan


Open the hood on the 1999 Dodge Caravan.


Locate the round adjustment pulley on the lower left hand side of the alternator. Loosen the lock bolt in the middle of the adjustment pulley with the 1/2-inch drive ratchet and a socket. Turn the lock bolt counterclockwise to loosen.


Locate the adjustment bolt on the side of the adjustment pulley. Turn the adjustment bolt clockwise to tighten the belt with the ratchet and a socket. Once the belt is tight, check the tension on the belt.


Push inward on the belt. If the belt pushes in more than a half-inch, then the belt has too much slack in it. Continue to tighten the belt until there is no more than one half-inch of slack in the belt.


Crank the engine and let it run for about 20 seconds. Turn the engine off and recheck the tension on the belt with your hand. Tighten the locking bolt with the ratchet and socket. Close the hood.

Tips and Warnings

  • The belt tension can also be checked with a belt tension checking tool. This tool can be purchased at almost all auto parts stores.
  • Always keep hands away from the front of the engine when it is running.
  • The drive belt on the 1999 Dodge Caravan controls the alternator and the air conditioner pump. When the engine is running, the crankshaft turns the drive belt around the alternator and the air conditioner pump. The belt moving around the pulleys is the process that enables both accessories to function. The drive belt is held to the proper tension inside of both accessory pulleys by an adjustment pulley. Replace the drive belt immediately if the belt is cut or if it has excessive cracking anywhere on the belt.