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Heavy Duty Truck Systems - Chapter 28 Graded A+

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  • Heavy Duty Truck Systems

Heavy Duty Truck Systems - Chapter 28 Graded A+ What is the primary function of a truck’s automatic transmission? An automatic transmission shifts gears automatically based on the vehicle’s speed and load, providing smoother operation and ease of driving. How does a truck’s transm...

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  • September 15, 2024
  • 9
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Heavy Duty Truck Systems
  • Heavy Duty Truck Systems
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Heavy Duty Truck Systems - Chapter 28
Graded A+

What is the primary function of a truck’s automatic transmission?


✔✔ An automatic transmission shifts gears automatically based on the vehicle’s speed and load,

providing smoother operation and ease of driving.




How does a truck’s transmission cooler benefit the vehicle?


✔✔ The transmission cooler helps maintain optimal transmission temperature by dissipating

heat, preventing overheating and improving transmission longevity.




What is the purpose of the truck’s drive shafts?


✔✔ Drive shafts transfer torque from the transmission to the differential and wheels, allowing

the vehicle to move.




How can you identify a problem with a truck’s differential?


✔✔ Problems with the differential can be identified by noises such as whining or grinding,

difficulty turning, or noticeable vibrations.




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, What role does the truck’s electronic control unit (ECU) play in the vehicle?


✔✔ The ECU manages various engine and transmission functions, optimizing performance, fuel

efficiency, and emissions by processing input from sensors.




What is the function of the truck’s clutch assembly?


✔✔ The clutch assembly allows the driver to engage and disengage the engine from the

transmission, enabling smooth gear changes and control of power transmission.




How does a truck’s transfer case operate?


✔✔ The transfer case distributes power between the front and rear axles in four-wheel-drive

systems, allowing for better traction and stability.




What are common symptoms of a failing truck’s torque converter?


✔✔ Symptoms of a failing torque converter include slipping, shuddering, overheating, and poor

acceleration.




How should a truck driver handle a transmission fluid leak?


✔✔ A transmission fluid leak should be addressed promptly by locating and repairing the source

of the leak and refilling the transmission fluid to the proper level.

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