Look on your car's engine.
Look on the passenger front side of the engine, you will see pulley attached to a short arm with a square hole. That is the tensioner and tensioner pulley
A single pulley has no mechanical advantage, it just changes direction.
if there isn't anything wrong with the belt the pulley is turning, check to see if the pulley is stuck, you might need to replace the pulley ( about $30 )
No, a crankshaft pulley should not wobble. If it is wobbling, it could indicate a problem with the pulley or the components it is connected to, which can lead to engine performance issues. It is recommended to have it inspected and repaired by a mechanic.
A bad pulley (sharp edge) A seized pulley A misaligned pulley
Most idler pulley's are near the top and usually quite easy to get to. Press on the belt somewhere, enough to deflect it a couple inches and watch to see which pully is mounted on a tension spring. That is the idler pulley.
its on the left side. its the easyest pully to see.
Looking down from the passenger side at the front of the engine you will see crankshaft pulley on the lower left, then the tensioner pulley, then the alternator. It has a pulley on one end and then the arm and on the other end is a 3/8 inch square hole to fit a ratchet in to release the tension to get the serpentine belt off. Looking down on it from the top you will see it. It's an arm about 7 inches long with a round pulley on the end of it. It presses down on the belt to take out the slack.
See "Related Questions" below for a discussion regarding the serpentine belt tensioner and pulley. Pretty comprehensive coverage.
when your at the top of the deck where you can see the object go to the left and you'll land on the pulley system then jump side-woods up and you'll get the object.
The pulley has probably gone bad. This is very common for Caravans. Try having the pulley replaced and see if that solves the problem.
The damper pulley bolt tightening specifications, on a Caterpillar see 15 diesel engine, is 60 pounds per square inch. The pulley should not be tightened beyond 60 pounds.