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...
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.
1
, 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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