Join Date: Mar 2002
Location: Austin, TX, USA
Re: hate to do it.....Alternator/wiring help needed!!
That alternator is a bit different than what I'm used to so I hope the following isn't bad advice. Can you go to your local library and examine the haynes manual schematics for a 2002 Tahoe to be sure which pins on the alternator go to which wires?
In the stickies at the top of the electrical forum there is an alternator conversion article that will probably give you some idea of how to wire up that new alternator. I don't think you'll need the blue / yellow wire with that alternator. If that alternator is like the CS-130 (with which I'm more familiar) you'll have a brown wire to the GEN lamp, a red wire (for remote sensing) that can be shunted directly to the back of the alternator or to the horn relay or the battery junction block. The article above will explain. Last you have the big red wire. The other pins on the plug aren't used and the blue / yellow wire can go away. I purchased a plug for my CS130 at my local auto parts store in the Help! section for $5 or so.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI