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Old 03-13-2010, 10:22 AM   #1
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Join Date: Jun 2009
Location: Central Ohio
Posts: 526
DIY: How to Change your Alternator

Pretty straight forward project. No need to remove top engine cover or seats. All access is through compartment behind the seats.
First Test your battery/alternator with car off and then car running. You should see a drop in voltage when you start your car. Mine was 12.x then dropped to 11.xx. Take your alternator in and have it tested. Also have them test the new Alt before you take it home.

Difficulty: 4.5 out of 10 *(only 2 scews and 3 wires)
Cost: $204 +tax from Oreily's auto parts with lifetime warranty.
Time: 45 minutes to an hour for removal, 30 minutes to install

Procedure: 10 steps
.5) Disconnect Battery before doing this.(almost forgot that one)
1.) Put both seats in forward and Remove 4 plastic screws at the top of the carpet behind the seats. take off carpet
2.) Remove access panel(8 or 10 scews) I believe 10mm socket, use extension for the 2 behind the arm rest.
3.) Use 24mm socket(short) and a 1/2 ratchet to loosen tension and remove your serpentine belt(change it if you need to now)http://www.987forum.com/forums/showthread.php?t=21433
4.) Take off both screws holding the alternator in. The one with a roller will come off after you use a pry bar to move the alt up.
5.) Don't take it all the way out cause you have 3 "short" wires attached in the back of it. The two wires come off once you remove the bolt, the other comes off by pressing the sides of the plastic harness.
6.) Remove your old alternator. Should slide out with a little maneuvering.
7.) I took the bolt off at the bottom left, right next to the Alt to make more room for it to be re-installed. It really helped.
8.) Connect wires back up and side it back in(really easy with bolt on car removed).
9.) Replace bolt on car before the bolts on the alternator.
10.) Put belt back on and release tension. Attach battery and test everything out before putting access lid and carpet back on.

Thats it, you just saved yourself a small fortune.

Projects completed:
1.) Serpentine belt...........$25 Gatorback w/ac
2.) Sparkplugs..................$42 Ngk-Ix-Iridium
3.) Radio replaced............$225 JVC HD50 (BB install)
4.) Tires............................$700 Sumitomo III Local shop
5.) Oil Change/air filter.....$94 catro syntec 10W40,napa gold,K&N air
6.) Speakers....................$143 Infinity Kappa F=4", R=6x4 plate
7.) Throttle body clean.....$5 Throttle body cleaner
8.) De-snorkel..................$.10 A few paper towels
9.) Alternator...................$221 Various Sockets
10.)Fuel filter...................$30 10mm socket and flat head screwdriver
Projects to do:
fuel filter
Another Oil change
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Last edited by mptoledo; 04-02-2010 at 07:41 AM.
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