How to Replace Damaged Wires 

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Have to do this to about 30 cables on my ecm. Wish me luck I don’t even know who to change my own oil but RU-vid tends to empower me in thinking I can do whatever I put my mind into

Regular electric tape is 185F, while 3M Scoth tape 33+ and many other better tapes by the same mfr are 221F. The wire loom also is rated to 257F, so the the tape is being insulated. The engine itself only gets to 220F approx (exhaust can be 500F range)......so you will be okay. You can use PRIMARY WIRE (rated at 185F). The engine area does not get as hot as you think, and if it did, you would not even be able to touch the battery, cap on brake fluid bottle, or windshield fluid bottle. As long as no direct contact with the engine. For tape, try getting Tesa 51026 tape, which is designed for engine harness work.....if you can find it. I prefer solder, but often there is no room, so crimping works best. I would not use his crimping tool....next step up is Channel Lock 909, or a ratcheting tool (Klein, or Titan crimp tool). Klein are better. Many like Titan, only $20 right now at Princess Auto (Canada). However, sometimes you want to use Channel Lock 909, because it has a smaller head and gets into tighter spots. Also the channel lock has INSULATED and NON INSULATED.....and for the crimps he used (Insulated).....many people prefer using the channel lock on the non-insulated mode (it really tightens it down). Only issue is some butt connectors with heat shrink feature might tear, try test sample, and if it does tear, then use the insulated portion of the channel lock plier. On the other hand, you can put heat shrink over it and have double safety. Some people also like to add at the ends of the heat shrink a dab of Permatex Liquid Tape. It also saves a lot of time, on little repairs where bare wire is exposed....and has a temperature rating of -50F to 275F. Scotty Kilmer loves liquid tape, but uses a different brand. Before using, apply steel wool if wire is oxidized, if wire is dirty, wipe down with isopropyl alcohol....and apply at least 2 coats. This is amazing stuff. If you have a heat gun, use that over a torch....less chance of burning the wire, and a better job. I'm not a auto wiring professional doing wiring all day long, but have read and done enough jobs as needed.

You always do such a good job thanks for showing us

Excellent..just what i was looking for and 1AAuto provides!

Good Job ,Larry

i think soldering its a better and more solid repair, also regular electric pvc tape is not recommended for high temps.

the extra tube helps as a heat shield and to increase the bending radius so the wires don’t faigue when manipulating the harness. bear in mind some wires have teflon insulation when near hot areas. those are expensive and have very good termal stability. many wires in the engine bay are teflon coated. next to exhaust (like o2 sensors) I saw that fiberglass sleeve shield is used instead of plastic flexible tube.

Wouldn't solder and heat-shrink tubing be a preferable method of repair?

How would you check a repaired wire for good connection/continuity?

Does the new wire need to be the same gauge size as the one I want to cut and fix

Thank you

What thickness of wire did you use?

That was assume! I'm doing that this weekend and it's going to be fun. Thanks Bro.

A little assurance add a dab of dielectric grease on the ends before you crimp them to the connector.

Where did you get the blue things with the metal inside it and the heat shrink ones. Thanks Sean

What if one used slightly thicker gauge wire? Should you still get a working connection but back end problems occurring, or it's possible it still acts like a dead connection?

Did u buy replacement wire from the auto store ?

Great VEDIO. ! HOW CAN I FIND OUT IF THE WHOLE ELECTRICAL WIRING ON MY VEHICLE IS ANY GOOD OR IF I BURNED ALL THE WIRING FOR GOOD HARNESS ELECTRICAL WIRING STARTED SMOKING VERY SERIOUS .. PLEASE GIVE ME INFO BEFORE I JUNK MY 2003 DODGE DURANGO IN THE JUNK YARD ASSUMING IT'S NOT GOOD ANYMORE

Nice

I have a 97 mustang, when it's cold outside and I start it up the wipers come for a cycle. any idea what could fix that? everything else is great.

I was replacing the ebrake cable and found that the wires for the fuel pump are hanging on by a thread. Fortunately they’re damaged right before a connector that’s accesible (not hidden away right at the pump) so it won’t be too hard to fix, I’ll just have to be laying down under the vehicle to do it. After I make the repair I’ll have to make sure the plastic wire sheathing is over the wires because I think that was part of the issue. I’m glad I found that now and not on the way to work.

What if wires have gotten cut a couple of wires in my harness got cut on my 2010 Toyota Carolla LE

Is there a source where I can buy wiring harnesses and wiring components, like connectors? A F'n rabbit made a next on top of then engine and chewed up the wires, including the connector, where they go from the ignition coils down the back of the engine to the injector rails. It's a nightmare.

how do you change the OBD2 plug under the steering wheen so testers can read the codes I changed the fuses and still a problem

But can you use any plain wire? Or where do you find those strips of wires? I don’t know much about wiring, except for there being positive and negative…

I'm scare to do this myself but my alternater wire may need replacement so I don't do it right can it kill the alternater?

Hey guys can you please always tell the people what we are fixing and what we are watching that's being fixed or else there's a lot of electronic wiring systems that I still don't recognize and I didn't understand what we are switching is it the injector coil covering electronic harness or is this the complete harness?

Question. Can you give me an estimate for change a engine harnesses of Ford explorer 2006

Regular heat shrink tubing is not waterproof ,,, get the special type,,It actually has glue on the inside of the tube

Couldn't you just use one of those 2 in 1 solder and shrink wrap connectors and then wrap with black tape and be done with it?

If you twist the bare wires, the circumference is increased and makes it harder to insert into the butt connector.

perfect explanation and tutorial, one question though. since the wires were colored and obvious where they were going to go, why not just cut off the whole end, patch it up at a workbench, then just bring it over and clip/shrink it back to the exposed wires rather than hanging over the engine the whole time?

Rat got into my dash and had a feast. Pray for me brothers

Can i splice coil wire connectors

HOW CAN I FIND OUT IF THE WHOLE ELECTRICAL WIRING ON MY VEHICLE IS ANY GOOD OR BURNED

I'm not an electrician, but if yu think about it, staggering the repair joints seems more conducive to arcing. Because if the path travels up the wire between the insulation and heat shrink, then a staggered joint gives it another possible opening to go into, and travel to the next open joint under the heatshrink. but if they're beside each other, it would have to do a Uturn and come back to the open joint, which I'm guessing it wouldn't... Idk, I'm guessing at the whole thing, lol

had to redo the entire front headlight wiring because someone did a lousy job with some cheap projector/halo headlights on a 97 Accord, no low beams, no DRL, and mismatched turn signals and all under a cloudy tint coat that left behind gross residue on everything.

Why couldn't you clean the wires with electronic cleaner and then wrap the exposed parts with silicon tape?

Tyty

How to adapt 2010 eagle eye headlights to a 2009 nissan murano.

Is it better to use hair dryer instead of flame torch? I saw the burn on shrinking tube, that is no good. Another method, if we have no splice, we can twist wires together and soldering them. (smooth the surfaces, if there are any sharp edges of conductor (by scissor or cut-able tools, otherwise they will cut the tape and shrinking tube). Then, tape them about 2 layers, then use shrinking tube to cover them again(in order to protect moisture as the instructor said).

What size butt connectors

Good job. How did you get the conecter off the module for a 2014 Town and Country van ??? Like in this video, does not show how to disconnect it. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-BZ4aAzC5fSw.html

“Maybe I’ll get a job at Volvo.” 😅

Fairly basic

Thanks for the video, but I think This is still not a good solution for the problem.

Millennium Honda in Garden City NY, charged my friend $977 to do this. I told her to dispute this with her CC company and file a complaint with the BBB, DMV, Honda Corp and the NYS Attorney General. Even at a dealership this should be no more than 1 hour in their rate book, at the most and that's being generous. Parts is literally pennies. This is literally fraud.

Volvo put the hard covers on the wires so when the insulation wears off you bring it in for servicing (check engine light) and they say mam its your harness you need a new one its $2200 with labor ...or you can just use this as a down payment on a brand-new Volvo...THEY SMART ..we dumb.

Rats chewed wires up and I don't know what they go to or how to replace them. Car just goes click when trying to crank.

I sorry this is s hack job... It is just as easy to do the job right. But the correct terminals and replace the wire into the terminal connector and use proper waterproof heat shrink crimp connectors

Don’t use butt connectors for that! They’re great for stereo installation. But never should be used on an engine harness. That’s bad advise!!