While driving today my 07 JKU acted like it turned off then back on instantly. What I mean is the radio shut off then back on and I noticed all my dash lights came on for just a second....just like when you start the car. The engine didnt appear to shut down. There is lightning in the air today although i dont see what it matters. I did just get gas earlier. There are no codes stored.
Anyone have this happen or any ideas? Going on a road trip next week. Kinda nervous now.
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It's probably your alternator. This same thing happened to me for years in my 2000 TJ, and when the alternator was replaced it never happened again. I do believe there is a JK thread on here as well with the same issue and it was fixed with an alternator replacement.
Not sure if its relevent but same thing happend to me in my WK 05. Happend 3 times actually all during at night headlights turn off, all idiot lights come in (christmas tree effect)... Dealer replaced a few parts and hasnt happened since but i ended up trading it in shortly after...
I had the battery and alternator tested today at 2 different stores and both said everything is good. I checked for loose ground connections and can't find anything. Going to continue driving and see if/when it happens again.
I don't wanna freak you out, however, have you considered that you may have a decepticon? GM is transformers apparently. So keep an eye on it.
On a serious note lighting could affect it I suppose. If all seems well, no warning lights and it drives fine than could just be lots of static in the air. Wouldn't take much to cause interference. Have a pats store plug in a OBD and see if anything comes up. Doesn't always show on the dash
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