Good morning/afternoon all. First off, I am electrically inclined enough to wire a car stereo. After that, well... Anyway. I have a brand new battery, new 94 amp alt, and new blower motor. I have severe voltage fluctuations (sp) between 8.5-13 volts. Couple of questions. When you go from park, to drive, reverse or neutral does anything happen to the electical system other than a slight RPM drop. Is there something in the tranny, or else where that engages electrically that would draw 10-20 amp maybe? (guessing based on the voltage drop) And after that when engaging 4 wheel hi/lo from 2wheel high is there something electrical that would engage again on top just being in drive/reverse/neutral? I get another drop when I go into 4wheel drive mode. Other than that, I get fluctuations by several volts based on sitting still at a light, or driving. Sometimes its low at idle (9 volts), other times its about 13 volts. On a different day, same electrical items running (headlights, no offroad lights, interior fan on vent, not a/c mode, and in gear) I will get a great reading at 13 volts at idle, and then as I go it drops to 8.5 volts-10 volts at speed. This is random and fluctuates based on the position of the moon, time of day, and what mood the truck is in. I have noticed in the last 3 days, when I am driving at night the lights flicker from dimmer, to not so dimmer when I go over a small bump in the road going down the highway. All along I have wondering if its wiring loose or something like that. Now I kinda think with the bumps and the flickering that is surely is. However, I just got an electircal system check, he said my brand new alt is bad. I told him it was new, and the old alt did the same behavior. In fact when I took it off, it tested good. Now, the new one may have aproblem (burned up maybe). At this point he told me to replace the alt. Why? I really don't think thats it. He said that there is too much load on it. The OEM is around 70 amps I believe, this one is a 94 amp model. Yet, the problem is the same, etc... I informed him of this. Either he is wrong, or does not want to deal with digging into the problem more to find the issue. He said it would be about a 150 bucks to pull the stuff by the volt meter on the dashboard to start tracing and checking the wiring. I don't want to get into something that because a lost cause, and spend bucks and get no where. At the same time, I have thought it may be easier just to rewire a few things... (battery to starter area, alt to starter area, the wiring from the engine area to the inside fuse block) and see if that helps). How hard is it to rewire those areas? Also, has anyone had these issues before? That guy said several times, he swears the alt is the problem, that and when good it does not kick out enought juice. I don't think thats it, because its 25 or so above OEM rated alt... Anyway, please!!!