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Re: 91 pontiac 6000
Use a half in. breaker bar and i think a 15 mm socket and put that on your tensioner pully and push counterclock wise. It helps if you have someone ther to hold that pulley while you route the belt, but thats not necessary. Start at the top and go clockwise and the pulley you need should be the 6th one. about the 9 oclock postion. If you need help with the routing, there usually is a picture located under the hood either on the fender wall or in that area. Let me know if you need more help. Good luck and rate this info so I know if I have helped you> Thanks
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these have a serpentine belt and the tensioner is below the alternator and requires a special tool to move it. you can try using a wrench that will fit on the belt tensioner but you won`t have much room to move it. look under the hood around the upper rad support for a decal it may still be there. if it is it shows the belt routing and were the tensioner is.
the alternator is on the left near the firewall side of engine. disconnect the negative terminal on the battery you have to remove the belt by raising the belt tensioner to release the tension on the belt, if you cant get a ratchet on the tensioner a 19MM wrench will fit on the end of it. remove the bolts holding it in place, there is one in the back that holds on a steel bar, there is 2 that actually hold the alternator to the bracket, carefully unplug the voltage regulator and then use a 1/4 inch ratchet with a 10MM socket to remove the wire under the rubber boot, you may have to put a wrench on the alternator stud under the wire so it doesn't try to turn with the nut. follow directions in reverse to put new alternator in, reconnect negative terminal on the battery.
The alternator keeps the battery in your Pontiac going, constantly recharging it as you drive. The battery will quickly drain if the alternator is bad, so it must be replaced in that case. The alternator is mounted in the engine and naturally connected to the battery in all models, but other components could be in its way depending on the type of Pontiac you own. This will determine how difficult such a replacement will be. Difficulty:Moderately Challenging
1 Open the hood and disconnect the negative cable from the car battery.
Remove the drive belt by rotating the belt tensioner with a wrench to relieve the tension, slipping the belt off while applying pressure from the wrench. Depending on the model, other components might need removal, like parts of the air cleaner (Grand Am and G6), the fuel injector sight shield (Bonneville) or the coolant recovery reservoir (Grand Prix).
Disconnect any wire clamps that are on the clip at the alternator's end frame, then remove the rubber clamp and nut. These extra fasteners are not on all Pontiac models. Disconnect the electrical connector for the alternator. Remove the alternator by disconnecting its bolts.
Mount the alternator in place on the engine and tighten the bolts to the specified torque for your model. Connect the electrical connector to the new alternator along with any other clamps that held the old alternator.
Replace the drive belt by pushing the tensioner upward and slipping the belt back on it and the pulleys in the same way it was originally wrapped, then tighten the tensioner to the torque required for your vehicle. Replace any other components that were removed and reconnect the battery cable.
Its a simple question lol. By the alternator there should be an adjustment arm, it allows the alternator to be adjusted and move up and down. If you look at the alternator area you will see what all holds it together. The bottom bolt that holds the alternator in place doesn't need to be messed with. You may have to loosen the top bolt, but loosen the adjuster and push the alternator down to slide the old belt off and install the new belt and tighten everything back up. Adjust the adjustment arm to tighten the belt to spec.