I recently had to swap out the old OEM alternator on my 2001 Pontiac Grand Prix GTP. I'm sure most of you could replace an alternator with your eyes closed but I took pictures of the process and wrote up a quick guide for the new owners.
The procedure should be very similar on every car that has the GM 3800 Series II engine.
Here's the guide -
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I hope it helps some of you to save a bit of money. This was my first time replacing an alternator and it only took about an hour.
Cheers, Paul Michaels Ft. Lauderdale, FL