Jeep wiring is a nightmare -
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post #1 of 10 Old 01-10-2010, 12:37 PM Thread Starter
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1985 CJ7 
Join Date: Dec 2009
Location: South Jersey
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Jeep wiring is a nightmare

I recently bought an 85' CJ7 froma guy who worked me over pretty damn good. The jeep has thousands invested however, the wiring done throughout the thing is a nightmare! Underneath the dash theres so many wires hanging which are either cut or don't even go to anything at all its like you get lost at what your looking at. Because of the shorts and drains involved with all the bad wiring, the jeep only starts when it's jumped, but then runs fine until you turn it off where it completely dies again immediatley. The jeep has a late 80's corvette 350 engine along with a t-176 tranny. Problem is the guy's son i bought it from used the jeep as a damn science experiment and ended up doing things to it he didn't know how to or couldn't finish. I was told by my friendly mechanic it would cost in the thousands for labor in order for him to rewire the whole thing. I was wondering if it would take a custom wiring harness to fix the problem or does painless wiring make a harness that fits for modified jeeps. Also I'm planning on chaning the dash back to the original cj7 dash and removing all the **** he tried to add with the aftermarket one thats in it. If anyone has any advice on my situation plz help im stuck with this jeep now and couldn't do the same thing the guy who sold it to me did and beat someone for their money.

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post #2 of 10 Old 01-10-2010, 12:44 PM
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1985 CJ7 
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sounds like a new wiring harness starting fresh is the way to'll waste hundreds of hours of your time or thousands of dollars of your money trying to sort it out otherwise... There are other wiring harness companies besides Painless though, I'd shop around a bit

1985 CJ7 Project
Phase One : 5.3L Vortec/4L60E, Moser axles for AMC20, Twin Stick'd Dana300 - Completed
Phase Two: Bedliner, Rollcage, Seats, BESRK Rear Bumper w/ tire swing, Soft Top, and a few other goodies - Mostly Complete
Phase Three: Waggy 44 front, Scout D44 Rear, 4.56's, ARB's (F/R) SOA with YJ Springs, 35x12.50x15 BFG MT - Not Even Close to beginning

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post #3 of 10 Old 01-10-2010, 02:07 PM
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I'd definitely look into a new harness as well...


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post #4 of 10 Old 01-10-2010, 02:13 PM
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1984 CJ7 
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I would go new harness and then "convert" that to work with the 350. At least you would know whats what.
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post #5 of 10 Old 01-10-2010, 02:22 PM
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1979 CJ7 
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Location: Little River, SC
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I would either build your own harness (not as hard as it sounds, CJ's only have a few circuits), or but a new one. Don't pay someone else thousands to do it for you. Heck, for $2K, I'll fly up there, put it in and fly home while making a profit!

Oh, PLEASE post a picture of the 'aftermarket' dash he has. You have peaked my interest. Thanks!


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post #6 of 10 Old 01-10-2010, 04:45 PM Thread Starter
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Surely, tomorrow I will post a bunch of pics so u can understand whats going on there a little better.
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post #7 of 10 Old 01-10-2010, 08:13 PM
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1984 CJ7 
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Location: sylacauga, al
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Keep your eye out for harnesses on ebay. I recently bought an uncut complete engine harness for my 84 including all the computer wiring. Was complete and uncut for only 49 bucks plus shipping.
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post #8 of 10 Old 01-10-2010, 10:35 PM
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1983 CJ5 
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I would look at buying an Ez-wiring Harness from ebay. My wiring was a nightmare and so I bought one for about 150 and am very happy with the way everything turned out.

83 CJ, yeah its a 5

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post #9 of 10 Old 01-11-2010, 06:07 AM
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1985 CJ7 
Join Date: Apr 2007
Location: Broomfield, CO
Posts: 372
I feel for ya bud, I spent about 12 hours this weekend removing 3 alarm and 2 stereo harnesses... what a clusterf*ck.

2007 Jeep Grand Cherokee Overland w/ 3.0L CRD & QDII):
Installed: GDE Hot Tune,CB DPF Delete Pipe, 285/70/17 GY Duratracs, 4" SuperLift

Future Mods:
ARB Winch Bumper, Crawler Rear Bumper/Tire Carrier

1985 Jeep CJ7:
105k miles, 4.0L H.O. I6, AX-15, Dana 300, 4" BDS, Moser 1-pieces, Detroit AMC 20, Truetrac Dana 30, 4.56 regear, 33x12.50x15 BFG MTs
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post #10 of 10 Old 01-11-2010, 08:14 AM
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1986 CJ7 
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I know how you feel. I spent about 6 hours this past Saturday redoing what POs past have hacked up. I even found what looked like speaker wire spliced into some circuits. I'll be doing a new harness soon I hope.
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