My serpentine belt broke, because the pulley where my ac is broke. There is a small metal guard on the outside of the pulley that went bad first, then the whole pulley itself went bad.

Did the belt jump off track or break ?

Take a look under the hood for a routing diagram, they are often there somewhere. One thing to keep in mind for a serpentine type belt. If the pulley is grooved, the grooved side of the belt goes there, if the pulley is smooth, the back un-grooved side goes there. I hope this helps.

Check with Autozone and discuss your problem. They know what they are talking about and have always come up with the right parts or belts for me. I used to be a mechanic in my youth and I never go anywhere else.........

When did this first begin to happen? Changed belt or installed different pulley? Chased same problem. Solved it by shimming the idler pulley out so that belt ran in the middle of the pulley. Check the wear marks on the pulleys to see if the belts are running to the outside.

The tensioner is the only thing that will make a clicking sound, caused by the spring in it. But this doesn't mean that it is bad. To check pullies , remove the belt and turn them. they should spin freely. Turn them slowly also, if you feel any roughness then they are worn out. Do this to everything the belt touches, Alternator, a/c , power steering. Also the pullies should not wobble.

no, it runs on the serpentine belt:

3.4L Engine

1. Before servicing the vehicle, refer to the Precautions Section.
2. Drain the coolant from the engine.
3. Remove or disconnect the following:
   
   Negative battery cable Serpentine drive belt guard Loosen the water pump pulley bolts Serpentine drive belt Water pump pulley Water pump Water pump gasket

To install:

1. Clean the gasket mounting surfaces.
2. Install or connect the following:
   
   Gasket Water pump. Torque the bolts to 89 inch lbs. (10 Nm). Water pump pulley and hand-tighten the bolts at this time Serpentine drive belt Water pump pulley bolts to 18 ft. lbs. (25 Nm) Serpentine drive belt guard
   
3. Fill the cooling system.
4. Start the engine and check for leaks, repair if necessary.
5. Road test the vehicle and verify there is no air in the cooling system.

The A/C pully is supposed to spin freely until the AC is activated to run.. The cranshaft pully does not. Replace the tensioner pully. The belt has to fit in between the grooves on the pullys.

a bad belt tensioner leaving too much slack in belt causes it to break.

You can buy an A/C bypass pulley from an O'reilly auto or anyone that supplies Dorman parts. the pulleys are cheap and allow you to mount things and use the stock serp belt. You will have no AC ,though. The kit is designed with the intent of eliminaing the compressor, which is very expensive to replace.