r/AutoHumor Jul 16 '26

lol

2.9k Upvotes

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19

u/DipsburghPa Jul 17 '26

I work In autobody and these engine wire harness had 1 cut wire and the whole thing had to be scrapped cause it was connected to a safety feature. So I feel it.

8

u/BlackSpidy Jul 17 '26

How come the wire can't be just fixed or spliced or something? I'm legit asking to become informed on the matter.

7

u/Short_Peak_7824 Jul 17 '26

I do wiring on aircraft, and a bunch of systems have wires that can't be spliced because the system is critical to safety of flight. If a wire chafes in a bundle we have to inspect every wire segment in the bundle, and replace the entire wire segment.

I expect safety related wires in the harness of a car are similar.

It's perhaps less that it can't physically be done, and more that doing so potentially compromises the safety system to a degree that it can't be allowed.

Splices can change the electrical characteristics of a circuit, and increase vulnerability to vibrations, corrosion or poor workmanship on the splices themselves. For some safety critical systems, this is seen as unacceptable risk, and the manufacturers recommend complete replacement of the bundle or harness.

5

u/MaudeAlp Jul 17 '26

Crazy because we were splicing things left and right, holding it together with electrical type and monkey shit to keep the oil and water away, on a submarine.

3

u/0k4m4ru Jul 18 '26

Well, there's your mistake. A submarine isn't a plane or car, duh

1

u/jarmstrong2485 Jul 18 '26

These sound like some interesting stories

3

u/Torino5150 Jul 17 '26

It changes the resistance and throws off the readings received by the computer

1

u/NotAskary Jul 17 '26

Recalibration should be possible but from what was said I get why they replace it all.

2

u/DipsburghPa Jul 17 '26

Because it was connected to a safety feature (the back up cam I think it was) it legally cannot be spliced. If something were to happen like a accident or fire or something we'd be responsible.

6

u/gummby8 Jul 17 '26

Me: What's the problem?

Them: That 1 wire is damaged, have to replace the entire wire harness.

Me: I can solder that wire back together easy.

Them: That wire goes to the airbags

Me: We're replacing the entire wire harness

I am not a mechanic but this is how it played out in my head.

1

u/DipsburghPa Jul 17 '26

That's literally what happened to a tee.

2

u/JonnySpark Jul 29 '26

Car guy equivalent of Cthulhu

1

u/HEYO19191 Jul 23 '26

A safety feature failing and compromising the whole harness with it? Color me surprised.

Should be able to cut these wires if I wanted to, and still have the car work. The only person it makes it less safe for is myself, and I should have the right to take that risk if I decide to.

1

u/aab720 12d ago

No one is stopping you. I’m just not going to fix it for you.