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    2012 Jeep Wrangler JKU starting issues

    Odd thing , it did not!! That’s why it was so difficult to track down.
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    2012 Jeep Wrangler JKU starting issues

    Ok time for an update. After 3 weeks at the shop. They finally got it to throw two codes. P0513, invalid skim key, ba125, invalid key. This happened when the mechanic left the new key farther away from the jeep. Used the old factory key. Codes came right up. During the 3 weeks they checked...
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    No start, no crank

    Following. I have a similar issue.
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    No start, no crank (still) 2007 JK

    Following, I have a similar problem as well.
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    2010 Rubicon won't start

    Following, I have a similar problem.
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    No start 2010 JKU

    Following, have similar problem.
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    2012 Jeep Wrangler JKU starting issues

    Good idea, I tried to pull that fuse myself. But it was locked in and I suspect it would require a tool to remove. Keep the ideas coming, please. I’ll be talking with the tech on Monday. I know he is frustrated as well. They only work on jeeps. Well regarded custom and restoration shop...
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    2012 Jeep Wrangler JKU starting issues

    I’ll suggest that. The tech checked the starter and relay. Meter shows proper current and ground. Cranks fine. He told me yesterday, when it does not turn over, there is fuel working at the injectors, power to the plugs, for a very short time. Then nothing, almost like it’s ready to go , then...
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    2012 Jeep Wrangler JKU starting issues

    Did that myself. Initially thought it worked. But it didn’t. Thanks for the suggestion.
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    2012 Jeep Wrangler JKU starting issues

    Thought I would post an update. I took the jku to my jeep specialist. Seems like this is something they have never seen before! So far what it is not. Starter, throttle body, transmission temp, neutral switch, there are no codes , so no engine issues. Here’s the perhaps list, ignition switch...
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    2012 Jeep Wrangler JKU starting issues

    I know, that’s my worst nightmare. Pulling the transmission pan. For a $30 part. The interesting thing is my transmission temperature seems ok. (JScan monitoring). Replaced fluid (not flushed) after rear main seal repair. No shifting problems or noise. Oh well , to the shop I go Monday.
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    2012 Jeep Wrangler JKU starting issues

    Update, drove it for an extended time today. About 45 minutes. Came home waited about 10 minutes. No joy!!! Back to square one. After 30 minutes, it started right up!!! I’m totally stumped. I’ll try something else tomorrow. We have. Some weather coming on Monday. I talked with my local...
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    2012 Jeep Wrangler JKU starting issues

    Sorry the delay. The wife retired from work yesterday and she had me busy!!! Update, replaced the battery, no change. So I decided to remove the air intake pipe. Cleaned the throttle body, wiggled the connection to the throttle body, cleaned outside, seemed a little loose, clicked it...
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    2012 Jeep Wrangler JKU starting issues

    Thanks for your help, you gave me the idea for the o2 foolers awhile ago when I was having issues with the cats and o2 sensors. They worked!!! So thanks. Appreciate the help.
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    2012 Jeep Wrangler JKU starting issues

    What is the iod fuse. Location? I also had a strange thought. This is a toad for our rv. We have an onboard battery charger that tops off the battery while towing. I just went out and removed the fuse to it so it is not on. Could that be it?
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    2012 Jeep Wrangler JKU starting issues

    Good point. I’ll do an additional ground wire tomorrow.
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    2012 Jeep Wrangler JKU starting issues

    I thought about the starter, but it starts right up after clearing the computer, or after sitting for awhile. Drove around the block for about 30 minutes today monitoring the transmission and coolant temp. Both different numbers. Trans temp about 211 at the highest. My coolant temp runs at 200...
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    2012 Jeep Wrangler JKU starting issues

    Yes, same as on park.
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    2012 Jeep Wrangler JKU starting issues

    Checked, they are good!
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    2012 Jeep Wrangler JKU starting issues

    No lights except the lighting bolt electronic throttle. Stays on, no flashing.