1970 ford f 100 ignition switch bench test

Just over 50 years ago, the 1970 Ford F-100 revolutionized the pickup truck industry. It was the first full-size truck to have a wider stance and improved ergonomics, which set it apart from its competitors. But it was the engine and ignition system that really made the F-100 stand out. The power and efficiency of the engine were impressive, but without a properly functioning ignition switch, none of that mattered. Fortunately, it’s easy to bench test your 1970 F-100’s ignition switch to see if it’s working properly.

To begin, you’ll need to remove the switch from the truck. You can do this by removing the two screws that hold the switch in place, and then disconnecting it from the wiring harness. Once the switch is out of the truck, you can begin the bench test.

The first step is to check for continuity. To do this, you’ll need to connect one end of a multimeter to one of the terminals on the switch and the other end to the terminal on the other side. When you turn the switch on and off, you should see the meter read “on” and “off” respectively. If you don’t, then there’s an issue with the switch.

Next, you’ll need to make sure the switch is opening and closing properly. To do this, you’ll need to connect a 12-volt battery to the switch and then move the switch back and forth. As you do this, the battery should turn on and off. If it isn’t, then there’s an issue with the switch.

Finally, you’ll need to check the voltage drop. To do this, you’ll need to connect one terminal of the switch to a 12-volt source and the other terminal to a ground source. Then, measure the voltage across the switch. If it reads below 10 volts, then you know there’s an issue with the switch.

By bench testing your switch, you can quickly and easily determine whether or not the 1970 Ford F-100’s ignition switch is working properly. So, next time you’re under the hood of your vintage pickup, don’t forget to give the switch a quick once-over. With proper maintenance, your beloved pick-up can stay on the road for many more years to come.

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