One belt in two configurations. One for cars with AC and one for cars without.
Unless your '03 is drastically different from my '96, no. The water pump is generally driven by the serpentine belt.
idler pulley, the only one that will move
There should be a diagram of the belt's routing somewhere under the hood. There is on my Aurora.
No your timing belt/chain is different from your serpentine belt. Just make sure the groves on the belt match the groves on the pullies. Other wise you will have premature belt failure.
Replace or tighten the A/C belt. If equipped with a serpentine belt, replace it.
I am trying to change the belt on a 2.2 L, 96 Pontiac Sunfire. There is no adjustment on the alt. or power steering that I can see and I cant see how the tensioners work. Anyone have any ideas.
If you're certain that the sound is from the serpentine belt you should check the belt tensioner. A weak tensioner spring will result in slipping and a noisy belt.
A shop manual.
It's on the radiator shroud or brace, on the right of the fan.
On my '96 with the OHV engine, it's right on the top toward the front of the car. As a matter of fact, I just had to replace it. The job is pretty straightforward, but if you're changing yours, DO read the threads here about removing and reinstalling the serpentine belt. FriPilot
There is a tension pulley located on the left side and down about half way down with a arm attached to it, you have to pull the tension arm up to release the belt. actually on the 96 model it not that simple just to change the serpentine belt you have to disconnect MOTOR MOUNT before you can remove belt i know that sound crazy but i have a 96 acheiva sc v6 that i change belt on not pretty!
Use a 3/8 drive rachet to push down on the belt tentioner it goes right in the tensioner,,While holding it down remove the serpentine belt.