Wiring Harness Install Effort?
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Wiring Harness Install Effort?
So, I am considering replacing the entire wiring in my truck 78 F150. I have never done this but should be straight forward.
How long does this take..... with a full kit?
How long does this take..... with a full kit?
Senior User
Joined: Jul 2015
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Ive been working on mine all night, I went with a full Centech system for my '78 f150. It is involved, don't plan on getting it done in one night. I went a little overboard and put in fuel injection, remote stare, and a new stereo which adds a lot of work. The instructions are very detailed and the wires are labeled the whole length of the wire which makes it easy.
Fleet Mechanic
Joined: Nov 2009
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Plan on it taking an uninterrupted weekend. If you are splicing into the wires coming off of switches, do the ground work and verify what wires go where and write it down on paper. This will greatly aid you when you are actually doing the project.
Cargo Master
Joined: Nov 2010
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From: darlington
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I plan to tomorrow.
How easy though is this? Is it hard to feed the wires where needed or what?
How easy though is this? Is it hard to feed the wires where needed or what?
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Fleet Mechanic
Joined: Nov 2009
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Don't rush or get exasperated. You may end up getting up-down, in-out of the truck more than you would like, but it's part of the job. A little planning of the step by step will help tremendously.
Last edited by 84espy; May 27, 2016 at 09:32 AM. Reason: additional info
Senior User
Joined: Dec 2014
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From: Central Florida
I did a American Autowire kit as well, my dash was out and nothing in my way. Took my time, wire loomed, soldered, heat shrink where necessary...should take about 2 to 3 days. I know it seems like a lot more work but i guarantee if you remove the dash, it will save you time. No laying on your back looking for routing and wire labels. Under your dash will be the biggest time consumer without a doubt. If it takes you longer but you produce a better install then you will be well ahead of the game!
Elder User
Joined: Jan 2014
Posts: 898
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From: Chillicothe, IA
I have never done a vehicle wiring harness, but I am a low voltage contractor and have been dealing with wiring for 20+ years. Take loads of pictures, good pictures. Label everything you possible can. Get a wiring schematic, a factory one, take it somewhere and get a couple of copies made as big as you can get. One you keep original, one is for marking up.
These are all things that help me with organizing and keeping track of a task that seems to be a huge rats nest of disorganization. Good luck.
These are all things that help me with organizing and keeping track of a task that seems to be a huge rats nest of disorganization. Good luck.
Mountain Pass
Joined: Aug 2002
Posts: 140
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From: Tucson
I'm in a similar boat with my '79 Bronco. I bought the AAW kit and mainly need to replace the dash harness. So far, I've removed the harness from the driver side 2" hole and now I need to remove the passenger side that comes out near the A/C box. The new harness doesn't specifically support factory A/C, which my truck came with. I've retrofitted my system with a Sanden style compressor and all R134a, but am using the stock controls. I'm assuming that it will become obvious how to wire the factory A/C into the new harness, but I could be wrong. If anyone has done this, please let me know how it goes!
Is removing the dash a big deal? Mine's pretty barren at the moment, so it might be a good idea just to get the job done right. How is it bolted into the cab?
Is removing the dash a big deal? Mine's pretty barren at the moment, so it might be a good idea just to get the job done right. How is it bolted into the cab?
