it should automaticly tighten when you release the tensioner pulley after putting the new belt on. if it does not tighten 1 of 2 things happened 1). you didnt run the belt the right way 2). tensioner assembly is faulted and needs to be replaced.
To loosen the tension on a serpentine belt on a 2005 Grand Caravan 3.8L, turn the nut of the belt tension pulley to loosen it. Adjust the belt, then tighten the tension pulley by turning the nut in the opposite direction.
Go to www.autozone.com and look under specifications, belt routing. On a 1989 Dodge Grand Caravan, the diagram is on the side of the engine where the S-belt is located.
Fit a new belt tensioner
Rear most and lowest pulley on the serpentine belt.
No
The 2002 Dodge Grand-Caravan has 12 valves.
The 2014 Dodge Grand-Caravan has a V6 engine.
The 2005 Dodge Grand-Caravan has 12 valves.
The 2014 Dodge Grand-Caravan has 24 valves.
The 2013 Dodge Grand-Caravan has 24 valves.
The 2010 Dodge Grand-Caravan has a V6 engine.
The 2012 Dodge Grand-Caravan has a V6 engine.