How Do You Bypass a Starter Solenoid on a Semi Truck?

Starter solenoids are an integral part of semi trucks, as they are necessary for the engine to start. Without them, the engine won’t receive the electrical current needed to turn over and ignite.

Unfortunately, starter solenoids can sometimes fail and need to be bypassed in order to get the truck running again. Luckily, bypassing a starter solenoid on a semi truck is relatively easy and straightforward.

The first step in bypassing a starter solenoid on a semi truck is locating it. Usually, these components are located near the starter motor itself, but it can vary depending on the make and model of the truck.

Once it’s located, disconnect both of its wires from the battery terminals. This will prevent any electrical current from going through it.

Next, connect one of the wires to one of the posts on the starter motor itself. This will ensure that when you turn the key, electricity will flow directly from the battery to the motor and will be able to activate it as normal.

Finally, connect a jumper wire between the two posts on either side of the starter solenoid. This will create an alternate path for electricity to flow through when you turn your key, allowing your engine to start.

Conclusion

Bypassing a starter solenoid on a semi truck is an easy process that can be done with just a few simple tools and materials. All you need is some basic knowledge about electrical systems and you should be able to get your truck running again in no time!

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Susan Delgado