I got home from work and checked a couple of things and found a loose wire from the ADD light plug touching part of the crossmember. The wind and vibrations from driving would cause the wire to touch and short out, making the ADD relay click and snap. The ADD relay seems to be in the location I described, and I hope I didn't damage it. If I did, I'll dump the ADD.


1997 T100 4x4 SR5 5spd