I had a dead battery after leaving my lights on all day. I then tried jumping my jeep with my our dodge 3500 diesel. Next thing I see is smoke from the driver's side firewall. Immediately disconnected the jumper cables.
Then tried jumping it with our 92 f250, which did charge the battery (without smoke) but the engine wont start. I cranks but nothing more.
Also, I can't get any engine codes. After the sequence of on-off's I get a steady engine light.
Fried computer or something similar? (not up to par on computer controlled vehicles)
Please tell me you had the cables connected correctly, and not pos->pos / neg->neg
Originally Posted by Mean Max
I think I'll keep the YJ. But can I talk you into taking the wife?
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This happened when this girl was trying to jump her XJ in the parking lot. Her idiot boyfriend put the cables on the wrong ends and the batteries of both cars started to smoke, luckily no damage was done.
2 Hands Working Do More Than 1000 Hands Praying
A guy I worked with had the the same symptoms with his jeep and had a shop change his PCM and after about a month of messing with it the shop told him they no longer wanted to work on it so he had it towed home and started going thru the wiring leading to the PCM all it was for him was a corroded connection. I would check the fuses and the wiring in the area of the smoke before buying a new PCM.
So I replaced the battery and 4 fuses that were blown out, traced the electrical, but couldnt find any more issues. That doesn't mean they aren't there, just that I couldn't find them. The jeep still will not start, but at least it isnt completely dead anymore. I guess it is time to order that pcm.
Had the same smoke issue happen to me. My no-start condition was caused by some pretty bad cables. After replacing those, it started right up and even though there was smoke, my Heep has had no issues.
I've seen them on ebay for 40 bucks.
Trust me, you are not the first, nor will you be the last. For the future, red jumpers to the battery and the blacks to the engine block and NOT the battery. If you get large sparks, check your connections and you will just damage the cables and nothing else.