Why I always Crimp Wires when I need to splice them together vs Solder.

Crimping vs soldering wires together has been proven to be the better wire spice method if done properly.
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[@retireditguy9493]

Excellent video. If crimp is the required method for aircraft, logic says it probably is best for automotive applications too.

[@mikecoffing8332]

Thank you for that information and demonstration. Professional advice very useful to me here in coastal Alaska marine and Arctic environment.

[@100Ronster]

Thank you, very helpful info.

[@itchy7727]

Your answer is the one I've been looking for. Thank you Sir.

[@TAWPTool]

Outstanding!

[@charliemagoo7943]

To me too much stuff to carry. Crimps for different sized wires. Special pliers. Gm actually had an airbag recall on the r/v traverse enclave acadias . Remove connector. Add splice. Solder splice. Heat shrink.
Depending on accessibility determines my repair. But if its soldered it is brittle. Put a short heat shrink then heat shrink a longer tube over that one. Especially in vibration prone areas.

[@737mechanic]

The recall has you inspect the original CRIMPS for looseness. (which indicates the crimping job was faulty and GM did prefere crimps in the first place) If they are loose you are suppose to remove the old crimps and splice the wires back together using CRIMPS and the proper crimping tool then solder over them for extra security then place adhesive-lined heat shrink over them. If you look at the original crimps you can tell they did not use a ratcheting crimper, all they used was a crimper that smashes the crimp so there is no way of maintaining a consistent quality crimp connection. This is the #1 reason for failed crimps, I have seen people crimp wires using vise grips, needlenose pliers, and even a hammer. You need to realize there are bad crimps just as there are bad solder joints. The difference is if you have 100 people who have no experience crimping or soldering there will be more consistency and success from the 100 people crimping wires than soldering.
This is the perfect example of why a proper pair of ratcheting crimpers with the proper ferrule is a must.
My entire crimp kit will fit in a small bag and includes splices for just about every size wire, it's faster and easier, and no electricity or butane soldering iron is required. Not to mention you are not breathing up the fumes.
Here is the recall number and the SB number that has the fix.
Recall # 14V118
SB # 15536

[@charliemagoo7943]

@@737mechanic I was thinking of the actual recall 14030. No inspection. Splice using the ratcheting crimper then solder and heat shrink. The special coverage u mention was because many dealers just used butt connectors without solder and the airbag light would intermittently come on.

[@737mechanic]

@@charliemagoo7943 Airbag systems usually don't have any solder at all. The recall you mention is because of a faulter connector and they have decided to remove it all together and splice the wiring directly instead of having a connector, the same printable applies though the solder is for added security since there will be 100's of thousands of mechanics performing this repair for added security they have you crimp the splice then add solder. The only reason they are having you solder this is for added security because they know a lot of mechanics won't have or won't use the proper crimper or splice.

[@richardodaniel3173]

He never said why crimping was bad. Having worked in the military in electronics for 22 years, I can tell you that the military prefers solder over crimp. In fact QC will write you up for it. I can't even remember seeing a crimp set in the NSN inventory. As an assembly line technique I can see crimping being automated.

[@737mechanic]

I never said crimping was bad. Every ferrule, splice, and crimper that Boeing uses has a mil-spec assigned to it.
For instance,
mil-spec MIL-S-81824/1 is the blue environmental splice.
mil-spec MIL-S-81824/1-1 is the red environmental spice
mil-spec M22520/37-01 are the environmental crimpers.
BTW I use to work on saberliner 80 aircraft. Many of the connectors where soldered as was the relay connectors. Guess what we was always chasing when we had problems? If you guess bad solder joints at these connectors you are correct. It was a total nightmare.
We chase next to zero bad crimped connections on our fleet of 737's. If we do find a bad connection it is due to an improper crimp. If a crimp is done correctly with the correct tool it last the life of the airplane.