under the alternator you will see a automatic belt tensioner you use a extra long 3/8 inch square breaker bar or a 3/8 ratchet wrench with a pipe extension the pulley is spring loaded so pull until belt loosens and pulls off do the same to put back on make sure there is a belt diagram on water pump pulley cover before you go nuts trying to figure out where belt goes make sure belt is on every pulley groove or belt will chew up and fly off
on the car its fairly simple disconnect battery. use 3\8 drive ratchet put in the auto tensioner arm for serpentine belt and lift up remove belt. remove bolts going to wish bone mounts at front of engine. tilt engine forward. disconnect wire harness to alternator{should be 10mm} remove bolt from bracket at bottom of alternator. tilt alternator up and remove bolt from bottom back. hope this helped.
Most cars now have a serpentine belt that drive the alternator, water pump, power steering unit, etc. The belt tension pulley is a spring loaded pulley that keeps the proper tension on all these units. It can be moved to release the tension in order to remove the belt.
Take off the negative battery cable then the wires on the alt then the bolts that hold it on. First take off the serpentine belt. There should be a schematic of how to reinstall it on the fan shroud. if it is not there you can draw your own before you take it off. Don't rely on memory.
put a wrench on the pulley side of the tensioner (15mm?) and turn. The pulley arm will move & loosen up the belt.
You need a 17mm wrench. All you need to do is rotate the tensioner pulley near the alternator and slide the new belt on. It is quite simple. I have a 1994 jetta 2.0l which I have done lots of work on, too much to list.
Remove the alternator wiring harness. Loosen the tensioner pulley. Remove the alternator belt. Remove the alternator retaining bolts. Reverse the process to install the new alternator.
Remove your idler pulley first. it is the pulley right next to the alternator.
on the car its fairly simple disconnect battery. use 3\8 drive ratchet put in the auto tensioner arm for serpentine belt and lift up remove belt. remove bolts going to wish bone mounts at front of engine. tilt engine forward. disconnect wire harness to alternator{should be 10mm} remove bolt from bracket at bottom of alternator. tilt alternator up and remove bolt from bottom back. hope this helped.
Disconnect negative battery terminal. Loosen the serpentine belt - loosen the tensioner. Disconnect the alternator connections at the terminals. Slip the serpentine belt off the alternator pulley and pull the alternator out. Install is reverse.
Remove the serpentine belt and check the belt and pulleys for damage. While the belt is off, turn the alternator by hand listening for the noise.
First you will need to remove the coolant tank, then take the serpentine belt off of the alternator pulley. Next unplug the factory wire harness from the alternator and remove the bolts that hold it in place.
Note RADIO CODE before proceeding!!! Disconnect battery Loosen tensioner for the serpentine belt, remove belt. Remove wires affixed to the back of the alternator. Note the wire positions. Remove the 2 bolts holding alternator in place, you may need to remove a brace on the rear of the alternator to the head. Remove alternator. Replacement is the reverse, use the engine decal to reout the serpentine belt properly.
Remove serpentine belt. Remove pulley. Install new pulley. Install serpentine belt.
Remove Battery Negative Cable & secure away from post. Release tension on Belt Tensioner & remove Serpentine Belt from Alternator Pulley. Remove Battery Cable & Electrical Plug from Alternator. If applicable, remove Power Steering Line Clip from Alternator. Remove Alternator Mounting Bolts. Remove Alternator. Installation is reverse.....
You can remove your serpentine belt by loosening the tensioner pulley. Pushed the tensioner pulley to the right and the serpentine belt can be easily removed.
Also in order to loosen the serpentine belt you have to use a wrench or something and turn on the bottom pulley....easy remove the serpentine belt for the fan area and remove the two bolts that hold the alternator down and unclip the wiring harness
I did a alternator replacement on my 96' Lumina Sedan 3.1. In the engine compt. there's a diagram showing the serpentine belt flow and belt tensioner location. 1. Remove the belt after releasing the tension. 2. remove the bolts from the alternator & wire plug connecion. 3. Replace & reverse order. Pretty straight forward.