How to Fix Dash Board

[R1.]

I used a painless wiring harness for a dodge truck I think.

Completely rewired everything and ran new wires for power 97+ doors. BUT I didn't have any wires running to the engine since it was on my little cummins. But the cab wiring was easy.

 

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Nice, maybe a Dakota or something?

[krustyballer16]

 

I used a painless wiring harness for a dodge truck I think.

Completely rewired everything and ran new wires for power 97+ doors. BUT I didn't have any wires running to the engine since it was on my little cummins. But the cab wiring was easy.

 

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Nice, maybe a Dakota or something?

It was just the Chrysler, mopar, dodge generic harness. I think it fits like 70s vehicles. But I didn't need all the newer fancy stuff since my motor is all mechanical so it might not work for the stock MJ...

 

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[DirtyComanche]

I think I need to go down the same road and do a major rewiring in my truck.  I was out wheeling this weekend and shelled out a motor mount.  The motor shifted and pinched the wires on the alternator.  I started to dig into it and found it had been rewired before.  They had used duct tape on the splices.  Wiring was fried from the alternator to the cab.  

 

How did this go for you?

 

I'm not the OP, but I have rewired three vehicles from scratch without buying an aftermarket harness of any sort.

 

I'm thinking I would never do it again.  The first one was very bare bones.  The second was more elaborate.  The third was about the same.

 

The main thing is I wound up with a lot more money and time into it than I would have liked.  The Painless type harnesses suddenly look like a decent deal.  Once you start trying to find pins for all the weird OEM connectors it just gets painful and expensive.  Not to mention a lot of the stuff that's available is crap.

 

On my current XJ I cut the main underhood harness down and rerouted it to on the firewall (where it should have been from the factory, IMHO) and even that was quite a few hours (but very little money) into it.

 

For an XJ/MJ with the Renix setup I'd pull a harness from the junkyard and clean it up/cut it down before I'd dare make one.  There is not that many extra things on it.  My XJ is more of a trail rig, but it's retaining street legality and many of the features, there really just isn't that much wire you can cut out at that point.  You actually do need all of that stuff.

 

BTW, the factory wrapped the soldered splices with duct tape.

 

And the 4L Renix harness has two generations, at least that I've seen.  87 to mid-89 and mid-89 to 90. They use different connectors, and you can swap them in their entirety, but you can't mix and match them.  I am not sure if all of the early ones have the C101 connector on the engine harness, I want to say the early 89 stuff will not have it despite not being interchangeable with the mid-89 to 90 stuff.

[shelbyluvv]

They had used duct tape on the splices.  

 

The duct tape is factory believe it or not. I have found it in almost every one of my older ChryCo vehicle harnesses.

[R1.]

Duct tape?  That makes me not want to live on this planet anymore  That and a few hundred dozen other things.  

 

I used to work in the planning department of a company that made wiring harnesses back in the 80's. I'm going to board the wiring up and go through it.  As soon as I finish this kitchen remodel.

 

The truck had a lot of electrical issues before this.