how do you change the serpentine belt?

there are 3 18mm bolts on the engine mount bracket. the lowest bolt needs to be coated in thread locker or pipe sealant as that bolt enters a water jacket. the belt can be serviced by jacking the engine approximately 4" after removing the transverse engine mount.

This guide will help

https://www.2carpros.com/diagrams/pontiac/grand-am/1994

Please let us know if you need anything else to get the problem fixed.

diagram for belt routing ,alternator

Top is 2.0 Bottom is 2.2 and 2.5

I got the routing diagram for the 94 grand am, but this model is the 2.3L. the belt only drives the alt. crank, a\c. Thanks

Why did't ya say so? Voila!

What would make my 93 4 cyl. quad grand am shred the serpentine belt immediatly when I put one on?

Usually there would be a pulley not turning. Check your alternator because that is usually the first thing to lock up. If not the alternator, check the belt tensioner. One of the pulleys has to be frozen up.

Engine Mechanical problem
1993 Pontiac Grand Am 4 cyl Automatic

I am trying to replace the power steering drive belt. I have located the adjustment bolt, but can't find the pivot bolt.

Can you help?

go to the belt routing diagram on the site here and pick out which is your engine routing. It appears to be all tensioners so the most you will need is either a 3/8 or 1/2 inch drive to move the tensioner or a there will be a bolt plainly visible to move it.

The power steering pump has it's own belt and is located at the opposite end of the engine from the serpentine belt. It's tensioner is a bolt which tightens the pump against the pully before cinching down the mount.

I've looked through several belt routing diagrams adn can't find anything like you state. I've gon through 19992-95. if it has a tensioner it might just grab the tensioner with a wwrench and see if it will move one way or another so you can get the belt off/on. Otherwise you may not have the correct info and we are looking at the wrong thing... even the manual that i have access too doesn't show anything at all on belts......

When I start my car the fan belt squeals for a few seconds then is replaced by something that sounds like a Dremel being used to grind or cut hard stone or something metal. It is coming from somewhere near the motor mount that connects to the alternater. It continues as long as the car is in any of the forward drive gears (stops in neutral and reverse) but sometimes, when I go over a speed bump, a rough driveway or a stretch of road with a lot of jarring potholes, it will stop briefly only to return even louder. (It's really embarrassing...:) ). Any ideas

Inspect the drive belts for looseness and also could be a driven components such as the alternator, compressor, power steering pump or water pump that's making that dremel noise

how hard is it to chage a belt and do you have a diagram showing pattern of belt

2.2 engine:

I am trying to replace the serpentine belt on my 92 pontiac grand am and I am having trouble figuring out how to release the tension on the belt I've been looking around cant seem to find anything specific I have an Idler but no tensioner is the idler the tensioner or is there something I'm missing all together

The belt routing is for a 3.1L ENGINE. Do you see the square cut-out in the tensioner, you use a rachet drive or breakover, the same size as the cut-out, pull ccw.

That does not look like my belt or tensioner the diagram on the car says only idler no tensioner the power steering is on the top left (from same vantage point as this picture) then slightly below and to the right is the idler with an arrow pointing up and right in between the P/S and Alternator the idler is perfectly round with one nut in the middle ill post a picture of my diagram it may be a bit small but you should get a better idea of whats going on

OK, what's the liter size of engine? The picture I gave is what our database showed. The databases are not always correct. I'll keep looking.

If no tensioner, then some of the accessories that run off the belt, have an adjustment slot, you loosen the nut or bolt and move the accessory to get slack in the belt.

I found this for the 3.3L engine.

OK... I am the one doing the work Chuckles car... We finally broke down and rented a TOOL for it... the leverage of the long tool worked to loosen the tension... but NOW that we can get the belt OFF... there are engine mounts in the way of getting the OLD belt off and the NEW belt on... is there a preferred method to THAT? I see two bolts holding the engine in place from the top on some sort of rubber bushing, and it looks like that would be the ideal spot but the weight of the engine is just too much to create a big enough gap to get the belts thru. We tried jacking the engine up a lil but felt we were only lifting the car... and we tried using a giant crowbar to PRY it up (cause it looked like thats what someone had done before based on BENDS in the metal) and even THAT wasn't enough!

We replaced the belt because of wear and tear. now as we drive it the serpentine belt comes off while driving.

Some makes and models, I have used a 2x4 on the lip of the oil pan, with bottle jack, take bolt out of motor mount, left the one end of engine. You need to use your own initiative about what will work and what won't. Be safe.

It comes off because one of the components that it drives are faulty. It could be as simple as a pulley leaning slightly or a tensioner twisting from stress.

Pulley alignment is off, possibly wrong belt installed.

Sometimes the tensioner will break internally allowing the belt to slip off. Look at the alignment and get back to us,

here is a guide that will help show you what you are in for.

https://www.2carpros.com/articles/serpentine-belt-tensioner-replacement

Please let us know what you find so it will help others.

Best, Ken

Looking at my engine I have two belts, the one large belt connecting the Waterpump and Power Steering pumps and the smaller belt connecting from the waterpump to the alternator. Both belts squeal starting from the large belt that then stops transfering over smaller serpentine belt. The belts are new and I think they've just stretched a bit(under 9 months old) I've checked with a straight ruler and everything is aligned nicely. I've figured out how to tighten the alternators belt but the large waterpump/power steering belt I can't figure out. From examining the setup it looks as if the Powersteering pump needs to be adjusted to make the belt tight. I found one bolt that was loose that appears to be where it's tightened to hold it in the new position but I can't make the pump move in any direction. Is their another bolt that needs to be loosened? Their is one bolt almost opposite the adjusting bolt but it's hidden behind the pulley and I can't see how it would be used to tighten the pump as the belt and pulley would need to be removed to gain access there isn't even holes through the pulley to access it. A picture would be great. The car is a 1991 pontiac grand am LE 2.5L

i'll send a belt diagram along one shows the routing,which only shows one beltand the other shows the belt wear indicators on teh tensioner. that is what adjusts the belts.

oops hit the wrongbutton here they are

Thanks, However, not sure why this is he official picture. My car is like it says 1991 pontiac grand am 2.5l LE however it uses 3 seperate belts and has no tensioner pulley. One large belt wraps around the crankshaft and travels up to the power steering and then over to the water pump. A second belt attaches also to the crankshaft and travels over to the A/C. A third belt attaches also to the waterpump and travels up to the alternator. None of the 3 belts have tensioner pulley. All the belts are adjusted by moving the A.C pump, the power steering pump and the alternator pumps to make their respective belts tighter/looser. However I am unable to make any of the respective devices move. I must be not seeing a bolt or something.

are you sure this isn't a 1981 grand am? everything that we have listed is serpentine drive. Of course the manual could be screwed up as well. If i saw it i could fix it as i'd know where to look.I've looked aback as far as 1985 and can't find 3 belts. sorry

Absolutly positive it's a 1991. Manual must be messed becasue even Lordco gave me the correct belts for the car.

i can't find anything to send toyou we used to have stuff that went to1981 but since the site has a new format we no longer have that. Sorry.