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84 CJ cutting off

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Welcome aboard :chug: lol it sometimes cutting off could be anything unfortunately. I would start by looking for any electrical connections that are loose, bad grounds, gas tank sending unit corroded or plugged. If you could be more specific about how it acts when it is dieing that could help to narrow it down between electrical or carburetor/fuel issue. if it just cuts out like the ignition key was turned off that could be electrical related versus if it sputters for a bit before it dies that could be fuel related. Let us know we might be able to help narrow it down for you :chug:
 
It seems to cut of as if the key is being turned. It as 32k original miles. Garage kept, it's never been rained on lol. My father inlaw bought it new. And it has been sitting for a few years. I just recently got back on the road. It runs and drives great. When you are in a turning lane and you go to turn with out stopping it cuts off. I do think it's an electrical problem, I was hoping that someone could narrow down the problem. Cause we all know how much of a pain it is to trouble shoot an electrical problem.
 
Wow that's like the Holy Grail of jeeps then. We really like pics here so if you have any please share:notworthy: does it seem like the carb is giving you any troubles since it has sat? Water in gas tank? Does it only cut off making a left or right turn?
 
I hate to say it but it sounds electrical to me :( the ignition module will be under the washer bottle. check your battery connections and distributor connectors
 
Don't be afraid to unwrap electrical tape either. I recently went through trouble shooting a similar issue where mine would cut out immediately to 0 rpm while going 40 mph. Turns out it was a bad connection behind my dash from a non-standard ignition switch that had been badly wired. It was hidden behind lots of electrical tape and didn't respond to my jiggling of wires but chose it's own time to lose connection. All in all it took me a year and a half to find it because the problem went away for 8 months.
 
Does it fire right back up again?
 
With it running I would start under the hood and start moving wires around by hand and see if it dies. I had to replace plug that fits on the coil for that very reason. Good luck and I would love to see some pics also.
 
mtnwhlr said:
With it running I would start under the hood and start moving wires around by hand and see if it dies. I had to replace plug that fits on the coil for that very reason. Good luck and I would love to see some pics also.
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This is exactly what I would do before you start anything else.
Maybe a soft rubber mallet tap to the elec ign control box as well.
 
Once, my wiring harness came disconnected from the firewall and was resting against the block. It melted the ignition wire and it would cut off. I could start it back up. And then it would cut off again mikes down the road.

So I agree to open the hood and play with moving wires around until it happens again.

Or lift the front end and while running, turn the wheel. It may be in the steering column.
 
I had the same issue, many years ago. Mine, turned out to be the IGN switch.
LG
 
But now I seem to be having a new problem. Something is draining the battery. I replaced the battery and the alternator. Alternator charges the battery, but if I let it sit for a couple days the battery goes dead.
 
Could be a short caused from a worn frayed hot line somewhere possibly hidden under all that split loom. You could do an amp draw test with a multimeter or just remove a battery cable from the battery and try a spark test.
 
As Torxhead said, I would use a multimeter to test the draw on the battery with everything off. Then pull fuses one by one to find the culprit circuit.

On my old GTO the PO had it on a battery tender for years. I refused to do it. Turned out it was a frayed wired to a tail light. Fixed in minutes.
 
Come to think of it, you could also try removing fuses one at a time then doing a spark test or using the multimeter. This would help locate just where the circuit is. A wiring schematic would help here. There is also is a very slight battery drain due to the computer and a clock could provide a slight drain. Good Luck
 
Torxhead said:
Come to think of it, you could also try removing fuses one at a time then doing a spark test or using the multimeter. A wiring schematic could help here. There is a very slight battery drain due to the computer and a clock could provide a slight drain. Good Luck
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Good advice! ;)
 
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