What might an increase in wheel temperature indicate about a vehicle's braking system?

Study for the Heavy Duty Technician Exam. Prepare with flashcards and multiple choice questions, each question offers hints and detailed explanations. Ace your exam with confidence!

An increase in wheel temperature can indicate potential brake failure within a vehicle's braking system. When brakes are excessively heated, it often suggests that there is an issue with how the braking system is functioning. For instance, overheating can lead to brake fade, a condition where the braking components lose their effectiveness.

If the brakes are continually engaged or if there is a malfunction, such as a stuck caliper or inadequate brake fluid, it can cause the brake components to heat up beyond their designed operating temperature. This elevated temperature can lead to the deterioration of brake pads, warping of rotors, and even failure of the brake fluid to function correctly, resulting in a compromised ability to stop the vehicle effectively.

In a well-functioning system, brakes should operate without excessive heat build-up. Therefore, an increase in wheel temperature is a concerning indication that must be investigated to ensure safe vehicle operation.

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