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post #1 of 9 Old 10-18-2014, 07:03 PM Thread Starter
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Dead jeep

Jeep died on me today. Want to hop in it and go, turned key and nothing happened. No lights on dash, not clicking, light switch doesn't work... Nothing! Disconnect battery for a few min, reconnect and it starts fine. Drive about 2 miles and it dies as I'm driving down the road. All the needles on the gauges stay where they were when it died. 32mph, 1800rpm, 1/2 tank gas, ect.... This time disconnecting battery doesn't do anything when I reconnect. No horn blow or anything. Disconnect and reconnect battery about 4 times and it finally resets and I'm able to get it started. Put in gear go about 2 feet and it dies again.

Spend the next 2 hours unhooking battery and reconnecting. Finally get it started and back to the house. Electrical system light came on as I was accelerating. Died again in the driveway when I pulled in.

I've heard could be anything from bad tips, front control module, PCM, voltage regulator. Any ideas?

2008 steel blue sahara
with some doo-dads
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post #2 of 9 Old 10-18-2014, 07:57 PM
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You check the voltage on the battery

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post #3 of 9 Old 10-18-2014, 08:06 PM
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If you don't have any electrical equipment to check the voltage you could try pulling good battery from another car and give that a try.

You could pull it and get it to a local auto store for them to test as well. With low or minimal voltage the CPU can do strange things. If your battery has dead cells it could be making it really act up.

I know this is a very basic video but it might help you or someone else that is having a similar issue.

voltmeter: How to use a Multimeter to check a Car battery Voltage - YouTube

Last edited by 4x4x4; 10-18-2014 at 08:12 PM.
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post #4 of 9 Old 10-18-2014, 08:45 PM Thread Starter
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Yea voltage at battery is good. Ground cables are good. I can turn on anything that is not related to the jeep system. IE lights and winch.
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post #5 of 9 Old 10-18-2014, 09:25 PM Thread Starter
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Forgot to add a few weeks ago the jeep went through a spell where it would not start. Turn key and get nothing. No click or anything. Battery would be charged everything would work fine. Cycle the key a few times and eventually it would work.

The more I'm reading about a bad tipm the more I think that's what it is. My windows won't roll up or down sometimes. Indicator doesn't work sometimes.
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post #6 of 9 Old 10-18-2014, 10:18 PM
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Did you check your battery voltage under load?

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post #7 of 9 Old 10-19-2014, 01:00 PM
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broken wire?

I just joined the forum, and just got my first jeep last week , but electronics are electronics.

Given that it runs a bit and dies, and runs after disconnecting/reconnecting, maybe it's a bad wire/connector (above wherever your winch ties in)? In that case jiggling it might kill it. I had a taco that did something similar due to partially broken electrical connector.

Otherwise, it's easy for a battery to have full voltage, but as soon as you draw even a few amps the voltage drops off. I've seen this on a couple of friends' sedans. Good voltage with no draw doesn't imply the battery is good.
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post #8 of 9 Old 10-19-2014, 02:46 PM Thread Starter
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Took battery to advanced auto they put it in the machine and it tested good. Gut feeling is telling me tipm.
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post #9 of 9 Old 10-20-2014, 09:28 AM
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At 85k I had intermittent no start and stalls after start not exactly like you but fwiw.

After doing the battery ground:

https://www.jkowners.com/forum/showth...t=74599&page=2

and replacing the FOB:

https://www.jkowners.com/forum/showthread.php?t=64067

I stalled after about 45 miles on dirt while driving. No codes but tightened a few loose connections and hasn't happened again.

The wiring on these things just sucks balls.....
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