First put a floor jack under the engine and raise it just high enough to support the engine, do not raise the car.
Secondly, remove the moter mount on the left side of the car.
Using a serpentine tool or a small drive breaker bar (not sure on the drive size, I used a serpentine tool that costed around $9 at a discount tool store) move the tension pulley to release tension on the belt.
Slide the belt off and out, you may have to wrestle with it a bit to get it thru the small opening where you removed the engine mount.
Reverse the steps to install the new belt.
Automatic belt tensioner - if not enough pressure replace tensioner Belt has streched too big, and the Automatic belt tensioner is at its limit. The tentioner is how yo remove the belt, so you should feel its tention with your wrench.
under the hood.
If it has a serpentine belt it should have an automatic belt tensioner If it doesn't have a serpentine belt then alternator should be the adjustment/pivot point
Yes, I need a diagram of the serpentine belt for a 1997 3.8 liter Bonneville SE without a turbo charger.
The serpentine belt can be removed by using a rachet/socket and turning the spring loaded tension pulley clockwise. Reverse the order to install the new one. (The pulley should be somewhere in the top/middle section of the drive area.
You don't, they have a tension pulley that does that automatically. If the belt is too loose, the pulley most likely has to be replaced. Thecommi ::: The serpentine belt is held by tention with a automatic belt tensioner. If the serpentine belt is loose, you will most likely have to replace the entire belt tensioner assembly. the assembly comes with a new pully.
information on how to change the themostat on a 94 Pontiac Grand am SE 2.3 liter
Replace the Harmonic balancer
Loosen the tensioner pulley on your Monte Carlo 3.1 liter engine. Slide the tensioner pulley to the right. The serpentine belt can be removed. Put the new serpentine belt on and slide the tensioner pulley to the left.
Your question would be better answered if reposted including the year of your car.
YES
There should be a diagram under the hood or in your manual that will show you the path that the belt should follow.