TurboGoKart Posted October 7, 2011 Report Share Posted October 7, 2011 Just driving down the road, my car lost allllll power. All lights, engine, everything. I know my battery was getting low, but what the hell would cause this?! Waiting on a tow right now. Even if the battery went all dead, the alternator *should* power the car, right? Unless it wasn't charging the battery at all, in which case it may shut it all down? Ugh. 1990 Nissan 240. Quote Link to comment Share on other sites More sharing options...
Chadz89GTA Posted October 7, 2011 Report Share Posted October 7, 2011 If you have a bad connection at the battery terminals it'll cause shit like this. My camaro shut itself off 3 times before we found out the positive cable shit itself and the battery was toasted. Quote Link to comment Share on other sites More sharing options...
Mattsv8 Posted October 7, 2011 Report Share Posted October 7, 2011 If ur computer sees usually 9volts it shuts off weather the battery lost some cells and droped voltage or alt quit charging. The alt can keep a car going with a dead battery but not always. Quote Link to comment Share on other sites More sharing options...
Rhett Posted October 7, 2011 Report Share Posted October 7, 2011 My Sentra did the same to me, it was the lead going to the Alternator and with my Jeep it was the ground coming off the battery. Sounds electrical Scott. Quote Link to comment Share on other sites More sharing options...
prettyprix Posted October 7, 2011 Report Share Posted October 7, 2011 Mine just did that last week. It turned out that the wire from the ignition to the computer had worn through so the computer wasn't turning on. Most of the lights on the dash were flashing randomly though, and my radio worked, but that was it. Quote Link to comment Share on other sites More sharing options...
mjrsplat Posted October 7, 2011 Report Share Posted October 7, 2011 Sounds electrical Scott. Quote Link to comment Share on other sites More sharing options...
Cordell Posted October 7, 2011 Report Share Posted October 7, 2011 Either the power wasn't getting from the alternator (bad wire or connection) or the alternator quit charging. I've seen may times were the battery gets weak and will barely start the car, and that puts a heavy load on the alternator trying to charge the battery then both end up going bad. No matter what went bad on the car (sounds like alternator to me), make sure the battery is fully charged and tests good before you head out or you could end up with more issues. Quote Link to comment Share on other sites More sharing options...
Not Brian Posted October 7, 2011 Report Share Posted October 7, 2011 When this happened to me I replaced the alternator and that fixed it. Quote Link to comment Share on other sites More sharing options...
TurboGoKart Posted October 7, 2011 Author Report Share Posted October 7, 2011 Mine just did that last week. It turned out that the wire from the ignition to the computer had worn through so the computer wasn't turning on. Most of the lights on the dash were flashing randomly though, and my radio worked, but that was it. This definitely isn't my problem. I have zero power. Zero. Haha. Scott, that sounds like what happened. I'll pull the alternator and have it tested, then buy a new one when they tell me this one is bad. Quote Link to comment Share on other sites More sharing options...
01sentrase2.0 Posted October 7, 2011 Report Share Posted October 7, 2011 That happened in my sentra and it ended up being SHITTY wiring by nissan. Quote Link to comment Share on other sites More sharing options...
Jizzle Juice Posted October 7, 2011 Report Share Posted October 7, 2011 Since you haz a LSx, im almost positive it's you alt. As brian said replaced alt everything was great. happened to me in my T/A also. Was racing Rob down 70 to my apt and go there and BOOM nada, haha Quote Link to comment Share on other sites More sharing options...
Snowflake Posted October 7, 2011 Report Share Posted October 7, 2011 Why post in someones Tech help thread if you dont have any suggestions to help them? :dumb: Its already been said but I would have the battery and alternator checked if you dont find any visible problems with electrical connections. Quote Link to comment Share on other sites More sharing options...
TurboGoKart Posted October 7, 2011 Author Report Share Posted October 7, 2011 Absolutely no connection problems. No corrosion anywhere. I had just finally mounted my battery cut off switch on the rear of the car instead of hanging out inside the car, so I wondered if it might be that. I connected the two wires together to bypass the cutoff switch, but still a no go. So it sounds like the alternator. I'm leaving for the weekend in a few, but I will jump on this when I get back. Thanks for all your help guys. That was a new one on me lol. Quote Link to comment Share on other sites More sharing options...
TurboGoKart Posted October 7, 2011 Author Report Share Posted October 7, 2011 I'm an idiot. I tested the battery, 12.58v. Wth?? Hooked it back up, no nothing. So I started tracing the power wire, got to the front passenger kick panel, and forgot I had run the 1 or 2 gauge main battery line up there to a splitter box. What was in the box making a connection? A fuse. Wait, a blown fuse. Fuse did what it should though, because it looks like one of the power wires going out of there into the engine bay may have rubbed somewhere, as there was a little melted plastic from the splitter box where the fuse blew. Well hey, knowing is half the battle, right?! :dumb: Quote Link to comment Share on other sites More sharing options...
Cordell Posted October 7, 2011 Report Share Posted October 7, 2011 I'm an idiot. I tested the battery, 12.58v. Wth?? Hooked it back up, no nothing. So I started tracing the power wire, got to the front passenger kick panel, and forgot I had run the 1 or 2 gauge main battery line up there to a splitter box. What was in the box making a connection? A fuse. Wait, a blown fuse. Fuse did what it should though, because it looks like one of the power wires going out of there into the engine bay may have rubbed somewhere, as there was a little melted plastic from the splitter box where the fuse blew. Well hey, knowing is half the battle, right?! :dumb: So I guess your PCM must have been cut off from getting power then. Glad you got it figured out. Quote Link to comment Share on other sites More sharing options...
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