Can I Jump Start a Semi Truck?
The answer is yes. Knowing how to jump start a semi truck is useful knowledge to have, especially when traveling on busy Miami or Fort Lauderdale roads where you’re likely to find a secondary vehicle to help charge your battery. Read on to learn what you’ll need to jump start a truck, as well as the steps involved.
How to Jump Start a Semi Truck
To successfully jump start a semi truck, you’ll need the following:
- Safety glasses
- Battery charger with the correct voltage and heavy-duty cables
- Jumper cables that are 15 to 20 feet long with a 2-gauge thickness (minimum)
- Assisting vehicle with a battery of equal voltage (semi trucks are usually 24-volt)
Once you have what you need, take the following steps:
- First, put on your safety glasses.
- Locate the starter terminals of the truck. Clean off any rust or debris before connecting a cable.
- Next, turn off the electric systems like the radio before you begin connecting cables. Also, make sure the truck is turned off.
- Connect the positive (+) cable to the positive (+) terminal of the battery.
- If you’re relying on a second vehicle, attach the other positive (+) end of the cable to the second battery’s positive (+) terminal. Attach the end of the negative (-) cable to the second battery’s negative (-) terminal.
- Look inside the engine compartment of the truck and locate a metal plate that’s unpainted and free of rust. The air conditioner’s compressor bracket, engine manifold, or alternator bracket are solid options. Connect the other end of the negative (-) cable to the metal plate.
- Start the battery charger or the other engine if you’re using an assisting vehicle. Let the charger or second vehicle run for a few minutes.
- Start the semi truck with the dead battery. The engine should turn over. If it doesn’t, double-check the cables and connections. Wait for a few minutes, then try to start the truck again.
- Once the semi truck has started, disconnect the cables in the reverse order in which they were secured. Turn off the charger or assisting car.
- Let the semi truck run for about 15 to 20 minutes to ensure the battery is fully charged.
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Rechtien International Trucks is your source for truck driving tips, including tips for safer truck driving and tips for staying up-to-date with truck maintenance. If you have more questions about how to jump start a semi truck, contact us or visit us today!