Electrically dead as a door nail, Thoughts? - JeepForum.com
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Unread 09-18-2014, 08:45 PM   #1
PatriotBlue02WJ
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2002 WJ 
 
Join Date: Aug 2014
Location: Palm Bay, Florida
Posts: 28
Electrically dead as a door nail, Thoughts?

'02 Grand Cherokee, 4.7...

I drove to work this morning, no issue. Drove it at lunch time, no issue. Went to drive home from work, I was able to unlock the doors with the fob, I got the key in the ignition, slight turn, I hears a small click (not the click of a dead battery, more of an electronic click in the dash), and got nothing when I finished turning the ignition. Everything is dead. Had a buddy try and jump it, it made no difference. I checked the voltage across the battery, 12.8V. I don't have a dome light, radio, absolutely nothing. I can't even lock/unlock the car with the fob anymore. I had to leave it at work, I'll troubleshoot a little more tomorrow, but where do you think I should look? My first thought was bad cell in the battery, but I have absolutely no power getting to any part of the car (I'd think something would work, it just wouldn't have the cranking power). Second thought was a bad tumbler in the ignition switch, but again, I would think I'd still be able to lock/unlock the car. The fact that the fob isn't even working is puzzling me. Thoughts?


Last edited by PatriotBlue02WJ; 09-18-2014 at 08:59 PM..
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Unread 09-18-2014, 09:09 PM   #2
champ926
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1999 WJ 
 
Join Date: Dec 2010
Location: Mount Pocono, Pennsylvania
Posts: 631
Same thing happened to me. Turned out to be a loose battery terminal. Also check the ends of the battery cables as they corrode (turn green) resulting in a poor transfer of current.
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Unread 09-18-2014, 11:10 PM   #3
cykaaro
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2000 WJ 
 
Join Date: Apr 2012
Location: orangville, ON
Posts: 2,839
Yep, and typically it's because it's not getting a good or proper ground. Went through it myself last year.
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Unread 09-19-2014, 06:22 AM   #4
PatriotBlue02WJ
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2002 WJ 
 
Join Date: Aug 2014
Location: Palm Bay, Florida
Posts: 28
Thanks, I'll try at that when I get back to work. They didn't look bad at all, from some searching on here, it looks like a common problem. I had a dream last night thats all it was. Lets hope!
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Unread 09-19-2014, 07:48 AM   #5
Darnice
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2004 WJ 
 
Join Date: Nov 2012
Location: Windsor, Ontario
Posts: 489
Exact same thing happened to me, The terminals "Look" clean, but when i removed it, the inside of the negitive battery terminal connector (not the post) had disintegrated inside itself.
It was just a shell with no insides left. Had to replace it, wen to a marine style (wingnut and soldered on terminals)
I also, because it was 5 years old, replaced the battery with a 1000CCA AGM battery. The jeep starts instantly now and runs great.
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Unread 09-19-2014, 09:46 AM   #6
PatriotBlue02WJ
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2002 WJ 
 
Join Date: Aug 2014
Location: Palm Bay, Florida
Posts: 28
Figured it out. Connections were clean, but the wire I marked below was hanging on by a thread of copper. Re-terminated it and it got me home. Picked up a new battery terminal and cleaned up the wiring when I got home. I'm hoping this was also part of my occasional hesitation issues. We'll see, seems good now. Thanks for the input!

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