Electrical Problems - JeepForum.com

 
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post #1 of 5 Old 01-18-2014, 08:46 PM Thread Starter
pinstripefan90
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1994 ZJ 
 
Join Date: Jun 2010
Location: Grahamsville
Posts: 68
Electrical Problems

So yesterday on my way to work I was coming to a stop and then when I went to accelerate, my radio, HVAC control head, EVIC and cluster all blanked out and then came back on in a split second, this continued to happen during similar stop and go situations for the rest of the ride to work as well as over a few good hard bumps, So I then decided to test my old junk battery for kicks while I was at work and the GR8 came back saying bad cell, so I charged up a half decent core that tested out good and threw it in the Jeep, It was fine for a little while but It ended up messing up again w/ the whole stop and go type situation, also since it was dark I found out that when it happens you also loose power to the headlight. I obviously have some type of a intermittent short or loose connection but I'm just wondering if any of you guys have encountered this and if so where was the wiring/connection problem found, thanks...

- Jake

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post #2 of 5 Old 01-19-2014, 01:41 PM
Oldfrog
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2007 WK 
 
Join Date: Feb 2008
Location: Louisiana/Texas
Posts: 5,092
Check the battery ground to the fender, the pcm and sensor ground that's below the coil on the engine block and the ground near the oil dip stick. Take them apart, clean them and re-tighten them....but only do it AFTER you remove your negative battery cable.

2007 5.7 Hemi, Ltd. QD II -
1997 ZJ, 4,0 select trac, Up country, track lok.
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post #3 of 5 Old 01-20-2014, 05:30 AM
Speedymcracer01
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I would also check the pdc's positive wire from the from
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post #4 of 5 Old 01-20-2014, 03:01 PM
OCDComputing
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1998 ZJ 
 
Join Date: Jul 2013
Location: Orangeville
Posts: 81
Headlight switch assembly is causing it. Search this forum and you will find lots of examples of it. You will need to take the switch out and re-flow the solder joints.
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post #5 of 5 Old 01-20-2014, 11:47 PM
Oldfrog
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2007 WK 
 
Join Date: Feb 2008
Location: Louisiana/Texas
Posts: 5,092
Yep...I had forgotten about that one. You probably need to reflow the soldered connections on the headlight switch. It's a simple job. There is a write-up here with pics somewhere.

2007 5.7 Hemi, Ltd. QD II -
1997 ZJ, 4,0 select trac, Up country, track lok.
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