: Need help with electrical issues!


dog walker
11-13-2001, 12:42 PM
I hope that some of you electrical gurus out there can help me out, here's what I got.

My 82 FJ60 has a drain in the system, and it's prety fast. I need help finding the source!

Here's whats I've done so far, removed all the acc wires attached to the battery (stereo, CB, Amp, etc.) still draining, so then I disconnected the starter, still draining, I've checked to make sure that there are no obvious switches or lights on, but no go. I also put a different known good battery in her with no luck. I'm gonna go disconnect the Alt and Regulator right now. Any help would be real swell! Thanks,

Jeff

ps, I also cleaned and inspected all the main wires and cables.

Dog House
11-13-2001, 12:49 PM
Jeff, have you tried removing all the fuses, then going across each fuse spot with a light bulb and a couple of wires? This should show you which circuit is live as the bulb will light if there's current, and might cut down on troubleshooting all the circuits, by showing you which one is shorted.

Just a suggestion.

C-YA at this weekend. :beer: :smokin:

bludog
11-13-2001, 03:45 PM
Put an ammeter in series with the battery and check the draw,should be no more than about .5 amp. less is better.
Disconnect whatever until you find the drain. Alternators can cause drain so you might have found it.

Bundok
11-14-2001, 04:14 AM
Pull the wire off of the alternator and see if your drain goes away. Could be a bad diode in there, they can cause a bad drain.

Take it down to the local auto parts store or better yet an alternator/starter repair house. They will usually test it for free. If you have a battery mart in your area, they do this as well.

-Stumbaugh

ranger
11-14-2001, 12:55 PM
Thats a tough one to isolate. I've had this happen to a couple of vehicles and it always turned out to be the starter. Isolate your electrical system from the starter. Hook up an ampmeter to the starter to see if your getting an amp draw.
The easiest way to do it is take it to Autozone or Kragen, they can hook your stuff up to an analizer, FOR FREE!, and tell you where your troubles lie.....:skull:

woody
11-14-2001, 02:29 PM
first bet, alternator....second bet, starter.

My alternator drains my system, since it's not hooked up correctly yet. Part of my winter project list.

EricFJ40
11-14-2001, 06:06 PM
I had the regulator go bad in mine and it did the same thing. Completly charged battery would be drained in a matter of hours. I put a new regulator on, problem solved.

Plowboy
11-14-2001, 06:55 PM
Disconect the Neg ground on the battery and connect a circuit test light between the neg post and a ground. The short in the system will cause the light to come on. Disconnect the various electrical connections, alt, starter, v regulator (if you have one). When the offending circuit is disconnected the test light will go out. You can alos pull fuses one by one to find a short, when the offending circuit powered by that fuse is pulled the light will go out.

dog walker
11-14-2001, 09:43 PM
Thanks for all the great ideas guys, I think it's the starter as well. I fried (it fried!) two batteries!(dead cells), so I'm gonna pull the starter out when I get a chance and check it out.

I charges a battery for about 12 hours, checked it with the volt meter and it read 13.8v, then tryed to strat it, got nothing but some draw from the battery, then it was dead! I re-checked the voltage, and had only 10.2 volts! MAD!!!!:mad3:

Jeff

noonan
11-16-2001, 05:43 AM
plowboy has the right idea, thats the fastest way besides the autozone thing. Hook a 12v test light up and start pullin circuits till she goes out. I've had to do that with my ford pickup a couple times, POS i tell ya.