How To Solder Car Electrical Wires

Pull back so it goes down gently and then let it cool a little bit.

How to solder car electrical wires. And allow the solder to melt. If youre the belt-and-suspenders sort you can solder after crimping. Run the solder over the entire splice so it can melt and travel into the gaps between the wires.

For this example connect a piece of 18 AWG wire to a pre-existing 18 AWG wire. The only wires I solder are the ones related to the computer and its sensors. Other wires I just crimp and cover with heat shrink if possible.

After you are done twisting the two naked wires portion together to the top bend the twisted portion into half. Twist the two sections of bare wire around each other. Once cool inspect the union to ensure proper penetration of the solder.

How to Solder Car Wiring. The solder should be fed into the cool side away from the heat which allows it to be drawn in smoothly by the heat transfer through the wires. You may need to re-tin at some point during the process.

Review the materials needed and learn a few easy soldering methods. Due to the high level of vibration found in automotive applications a proper solder joint it less ideal than a proper crimp joint For the same reason soldering isnt ideal in an automotive application wire nuts or just twisting the wires together is equally bad. Its the act of using heat via a soldering iron and a fusible metal the solder to create the electrical connection.

Set the iron to the solders temperature range. Automotive applications use 6040 containing 60 tin and 40 lead. Now lay the twisted portion over either side of the joined wires.