Red Seal Truck and Transport Mechanic Practice Exam

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What is a common consequence of low transmission fluid?

  1. Improved fuel efficiency

  2. Increased engine power

  3. Transmission not engaging

  4. Higher exhaust emissions

The correct answer is: Transmission not engaging

Low transmission fluid can lead to the transmission not engaging due to insufficient hydraulic pressure needed for proper operation. The transmission relies on fluid to create hydraulic pressure, which allows it to shift gears and engage effectively. When fluid levels are low, it compromises the transmission's ability to function, leading to slippage, rough shifts, or even total failure to engage. This is a critical issue as it can leave the vehicle immobile or make it difficult to drive, affecting both safety and performance. Monitoring and maintaining appropriate transmission fluid levels is essential to ensure smooth operation and longevity of the transmission system.