How To Jump Start A Diesel Truck

If you recently purchased a diesel truck, you’ve made a smart move. The advantages of a diesel truck are lots of torque, sturdy construction, reliability and long life. It won’t do much to stop that rig. Except maybe a dead battery. Avoid being towed or stuck by learning how to start a diesel truck with two batteries.

Do Trucks Have Two Batteries?

It is not uncommon for diesel trucks to have two batteries. The dual battery setup generates additional power that can overcome the higher resistance of the diesel. The compression ratio of a diesel engine is almost twice that of a gasoline engine. It simply takes longer to start a diesel engine.

How to start a diesel truck with two batteries?

Luckily, you don’t have to find a friendly stranger with a dual-battery car to get moving again. The batteries in your truck are installed in parallel. This means you can start your diesel engine by connecting only one of the batteries – usually the most easily accessible – in your vehicle’s engine compartment. When you start the engine, the alternator does its job, sending a charge back to both batteries, even when idle.

  • Put both vehicles in “parked” (automatic transmission) or “neutral” (manual transmission).
  • Turn off the lights and other accessories on the vehicle you are starting.
  • Connect a clamp of the red jumper cable to the positive terminal of the dead battery. The terminal will have a red “+” or cover icon.
  • Connect the second clamp of the cable to the positive terminal of the battery well.
  • Connect one of the clamps of the black cable to the negative terminal of the good battery.
  • Find a piece of unpainted metal on the vehicle you’re jumping on (generator mounts are a great choice) and connect the clip of the last black cable to it.
  • Start the car’s engine with a good battery and let it run for a few minutes. You’re putting the juice back into a dead battery, which will take some time.
  • Start spinning the engine on your diesel. It can take a while to boot up, so you may need to give it a few more minutes from a good battery.
  • After the engine starts, remove the black cables one by one from both vehicles, making sure they don’t touch the metal, each other, or the red cables.
  • Remove the red cables from both vehicles in turn. Be careful and vigilant until the clips are separated from any batteries to avoid electric shock or fire.
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    Remember to let your revival truck run for a bit, allowing the generator to re-energize both batteries. Drive your truck and try not to turn off the engine for at least 20 minutes. Read more: how to use a male masturbator Now that you know how to start a diesel truck with two batteries, you’ll know what to do when someone else needs your help. for routine maintenance and repair. For more information on starting your vehicle, talk to a knowledgeable expert at your local NAPA AUTO PARTS store.

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