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Unread 02-16-2014, 08:31 PM   #1
weswilliams
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1996 ZJ 
 
Join Date: Nov 2013
Location: Columbia, SC
Posts: 16
Help!

Okay so my jeep will crank up, and then immediately shut back off. The only way it will stay on is if I continually rev the engine and keep the accelerator down. But still, as soon as I let off the accelerator it shuts off again. The check engine lights been on for a few months about the torque converter. Does that have something to do with it? If not, does anyone know what this is?
Thank you so much.

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Unread 02-17-2014, 05:38 PM   #2
scottspott99
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check codes again... weak fuel pump, TPS sensor a good place to start
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Unread 02-17-2014, 05:54 PM   #3
Thomahawk
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Best bet would be TPS or IAC, cleaned out Throttle body lately?
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Unread 02-17-2014, 06:11 PM   #4
weswilliams
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The only code I got was 12. The day before this incident I went outside and my car battery had died. Upon getting it jumped i managed to pull the jeep back into its parking spot, the next morning is when I discovered the problem. It's been a few days since and I've been able to go out and at least crank it up daily but when I went out again today, the battery had died again. At least that's what it seemed like because there was a loud receptive clicking sound. And I haven't cleaned out the throttle body lately. I've had the jeep about 4 months, I bought it used.
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Unread 02-17-2014, 06:38 PM   #5
Thomahawk
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Replace battery,

Electronic might act up in all strange ways on low voltage, like your idle problems.

Code 12 just means battery was disconected within the last 50 key cycles.
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2004 Grand Cherokee Overland 4.7 HO Quadradrive
95 ZJ Limited 5.2 Winter Project
Sold 94 ZJ Laredo 4.0 Winter Beater
R.I.P. 2000 Grand Cherokee Limited, 4.7 V8, Quadradrive, Shale Green Metallic, Agate/Carbon interior, Well modded and highly missed :(

Buildthread http://www.jeepforum.com/forum/f197/...grade-1813490/

MONEY WILL CONTINUE TO BE THROWN INTO THE RIG UNTIL CONDITION AND SATISFACTION IMPROVES!!!
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Unread 02-18-2014, 10:55 AM   #6
weswilliams
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Awesome, will do. Thanks!
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Unread 02-19-2014, 10:22 PM   #7
weswilliams
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Update:
I bought this Jeep in October, so before I decided to pay to buy a new battery, i figured I'd look through all the receipts and figure out if they'd bought one recently. Turns out the owners had bought a new battery for the jeep in march of 2013, so it's not very old. Is there still a strong chance it's the battery or is it more likely that it'd be TPS? The battery was bought at Walmart, if that helps, haha.
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Unread 02-19-2014, 11:22 PM   #8
MoabWJ
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If the battery or electronics are making noises, you have decent voltage in your battery. However, you have a poor connection. Check for corrosion on your battery terminals, check tightness, and for good measure, using a wire brush, scuff up the contact points on the battery posts and the wiring connectors.

You had solid input from T-hawk. Even if it is a newer battery, it could be faulty, or just toast from being run down. Check your terminals (free). Check the voltage on the battery (free at an autoparts store). Start simple in diagnosis.
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Unread 02-20-2014, 09:42 AM   #9
weswilliams
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Awesome, thanks.
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