Which statement best describes the proper condition of exhaust system mounting during VI?

• A. There should be noticeable movement in the exhaust system to indicate flex.
• B. All hangers and brackets must be secure; no movement or looseness.
• C. Moderate looseness is acceptable if there is no noise.
• D. Only the main hanger needs to be secure.

Answer: (B)

Exhaust mounting should be solid and held in place by every hanger and bracket. In a visual check, you’re looking for no looseness or play, because movement of the exhaust indicates worn or broken hangers, damaged mounts, or loose fasteners. That kind of looseness can lead to rattling, exhaust leaks, heat damage to nearby components, or even parts detaching while the vehicle is in motion. Since the system must stay correctly positioned under normal driving conditions, all hangers and brackets need to be secure with no movement. Moderate looseness or movement is not acceptable, and relying on just the main hanger would leave other support points unchecked.