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Disconnect the battery.Jack the car up and place on stands. Next, place a board on the jack and jack it up until it's tight under the oil pan. Starting on the passenger side of the car, locate the AC lines. You'll notice they are secured to a upper motor mount. Remove the nuts holding the clip in place. Next remove the remaining nuts UNDER the previous ones.Remove a 10mm screw holding the coolant reservoir just behind the headlight. Now tilt towards the engine and lift carefully, and place out of the way. Remove remaining nuts to remove what's left of the upper motor mount. Now being sure the jack is still in place, remove the 2 large bolts that connect the outer half of the mount with the motor half of the mount. At this point the motor should start shifting around. BE SURE THE JACK IS STEADY!

Now remove the belt by releasing tension on the tensioner/ idler pulley. There are three bolts holding the Alternator in place. 2 go in from above and one from the side where the belt just was. Once removed the alternator will need to be unplugged by A) a wiring harness and B)a 13mm nut (red wire).

"Dance" the alternator out of it's current position and have it tested. NEXT, have the NEW ONE TESTED ALSO!!! If your battery is dead, BUY A NEW ONE!! The alternator WILL NOT charge a dead battery. Rather, the dead battery will destroy the internal diodes of the new alternator, forcing you to buy ANOTHER alternator. NOT FUN!

Wire up the new alternator, bolt it in place, re-attach the fender-half of the upper motor mount first, then line up the engine (rock it back and forth if you have too, being sure it stays on the jack)mount with the fender mount and bolt in the last remaining bolts.

This ISN'T the easiest thing to do by yourself. A second STRONG person should assist you.

Good Luck!

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2011-09-13 05:40:15
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Q: How to Install alternator on 99 Chevy Cavalier Z24 2 4 Liter?
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