How to Remove the Speed Limiter on a Truck?
2 Answers
Truck speed limiters include mechanical speed limiters and electronic speed limiters. Mechanical speed limiters are mostly located at the throttle linkage and can be removed by adjusting the limiter screw. Electronic speed limiters require professional equipment at a repair shop for removal by technicians. Here is additional information: Truck speed limiter introduction: The truck speed limiter is a type of vehicle speed limiter that prevents speeding during transportation by restricting the truck's maximum driving speed, thereby reducing the probability of truck accidents to some extent. The truck speed limiter only restricts the vehicle's driving speed but does not limit the power output of the vehicle.
Removing the speed limiter on trucks—as a veteran truck driver with decades of experience, I know it’s quite common. Many people get impatient driving too slowly on highways, but the speed limiter is actually a factory-set protection mechanism, mainly to prevent overloading or engine overheating. If you really want to modify it, most trucks come with an Electronic Control Unit (ECU), and by connecting diagnostic equipment like an OBD scanner, you can adjust the settings. Some models allow you to flash the ECU program yourself, but don’t tamper recklessly—it’s easy to cause issues. Once, I helped a friend tweak his, and after the modification, the acceleration improved, but fuel consumption skyrocketed, and the braking system couldn’t keep up, posing significant risks. I recommend first checking the vehicle manual for the manufacturer’s recommended unlocking method or visiting an authorized service center—safety comes first. After removing the speed limiter, you should also inspect the drivetrain and tire wear, and perform regular maintenance to avoid sudden breakdowns. Illegal modifications can result in hefty fines if caught.
