How do you fix an alternator an a 1998 Chevy Tahoe?

Answer 1

First I assume by "fix" you mean replace. The first thing to know is that every auto parts store I have ever seen or heard of either charges a "core charge" which is refundable upon returning your old bad alternator, or requires you to bring in the old alternator to begin with. With that in mind, since it is relatively simple (I have been known to remove, and replace mine in about 15 min) If I can get the vehicle there, I tend to do mine in the parking lot at the parts store. First disconnect the negative terminal of the battery, and make sure it is not resting in a manor to continue to provide an intermittent connection. If you do not still have the sticker showing you the belt routing attached to the vehicle take note of the route it takes before going any further. The tension pulley is on your left, with a small square hole. Insert your 3/8 in ratchet into this hole, and pull the left (counter clockwise). You should then be able to remove the belt. Then if you can get to them, remove the two wires attached to the alternator itself, one is a small plastic clip, the other a nut holding on a ring terminal. There are two bolts that need to be removed, one on the top left, one on the bottom left. Then you will need something to pry with to remove it, it will still be stuck. Simply pry it out being careful not to drop it. (remove any wires you haven't already removed at this time) Once it is out, you will be able to see the collars that the bolts were through, use the pry bar you used to remove the alternator to push the collars towards you so that you can get the new alternator in. Once you have the new alternator, you simply put it in place, tighten the bolts and connect the plastic clip, and the ring terminal. When you tighten the bolts that hold it in place, you will push the collars against the new alternator tightening it back up. Last, reconnect the negative terminal of the battery.