I need the diagram of how the belt goes on each pulley

Go to http://serpentinebeltdiagrams.com/2003-cavalier-2-2l/
They should be the same as shown in one of the two diagrams.

here you go.

No diagram but it goes over the power steering pulley, going ccw, under the top idler (back of belt on pulley), over the ac compressor, over the alternator, up over the fan (backside of belt on pulley), around the crank pulley, over the water pump (back of belt on pulley) then you're back at the ps pump. It's tightened by loosening the pump pivots and using the long exposed jack screw below the pump to move it.

Here is the diagram for the belt that goes around the Power Steering pulley, tension pulley, and A/C compressor pulley:



I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

No diagram but here is how it goes:
Over the power steering pulley, under the idler pulley(backside of belt in contact with pulley) next to the a/c compressor, over the compressor,over the alternator, backside of the belt over the fan pulley, over the crankshaft pulley, backside over the water pump pulley, returning to the power steering.

You probably have a loose pulley causing it to come off. before you put it back on check all the pulley to see if they wobble or are hard to turn. There is a diagram of where the belt goes on a sticker somewhere under your hood. Generally the ribbed side of the belt goes into pulleys with groves. The smooth side goes against smooth pulleys.

The path of pulleys around which the belt goes (beginning with the crankshaft pulley, and moving clockwise around the array of pulleys) is in this order:
tensioner pulley (belt goes around the pulley counter-clockwise)
power steering pulley (belt goes...clockwise)
alternator (belt...clockwise)
idler pulley (belt going under the pulley)
and back to the crank pulley (belt...clockwise).

it the pulley has ridges an/or lips the ridge(s) side of the belt goes around it. if the pulley is smoth then the back side of the belt goes around it. You shouldnt need a diagram.

Starting at the crankshaft pulley, and going clockwise, the belt leaves the crank pulley,
Goes around the tensioner,
Goes around the water pump
Goes around the alternator
Goes around the upper idler
Goes around the Power Steering pump
Goes around the air conditioner pulley
then goes back to the Crank pulley

On the 92, the belt closest to the engine goes around the power steering pump, water pump, and crankshaft pulley.

The second belt goes around the alternator and the crankshaft pulley.

The third belt goes around the a/c and crankshaft pulley.