'93 YJ 4.0 inline 6.
Last week my battery and alternator decided to gang up on me and quit at the same time.
I replaced the battery with an optima yellow top and got a standard replacement for the alternator.
I finished installing the alternator and started the Jeep up successfully.
I turned her off. Then tried to start it back up and there was no reaction aside from a small puff of smoke (I could not locate the origin).
Now I don't seem to get any power. It doesn't try to turn over and the headlights don't turn on.
Anyone got a clue?
Any help is appreciated.
Thanks for the reply!
Do you mean the fuse box right next to the battery or do you mean there is something I should check below (under) the battery tray? I thought there was just empty space and some body support stuff under there.
If you mean the fuse box right next to the battery then yes, I already checked the fuses in there and they all seem to be fine.
The terminals on the battery or the Alternator? Both are snug. I was able to test the battery with the bad alternator still in place. I could start the Jeep but the voltage was really low when I turned on lights, stereo, etc.
The one time I got the Jeep to start with the new alternator the voltage looked good with the lights on so I thought I was in the clear. Turns out... not so much.
If you don't have one, it is time to get a good 30 to 40 dollar voltmeter, jumper clip leads and a test light, you may also want to get a battery charger.
Start with the battery and work outward, PDC, alternator, starter. Check the black ground cables, when we say check, remove them, twist them to make certain they don't fall apart, clean until shiny and re-install. As nothing works, it is going to be simple, bad ground cable or bad battery to PDC. I'm guessing, but the "puff of smoke" was probably the last gasp from a defective cable, either red or black, but from the battery to PDC or battery to ground(s).
Just because the fuses "look" good doesn't mean they are good. As for the "puff" of smoke? Where did it come from, dashboard, ignition switch, engine compartment?