Home › CDL Practice Tests › General Knowledge Questions › Question 227
Your air suspension will not build ride height on one side and the truck leans. What is a likely cause and the safe response?
- A.Add more cargo to the high side to balance it
- B.A leaking air bag, line, or a failed leveling valve; report it and do not drive a leaning, unstable combination
- C.Raise speed so airflow levels the truck
- D.A lean is normal for loaded trucks
Correct answer
B. A leaking air bag, line, or a failed leveling valve; report it and do not drive a leaning, unstable combination
Why
Air springs hold the frame level only while they hold air, and a lean shifts the center of gravity and overloads the low side's tires. A visible lean at a standstill is a defect to fix in the yard, not a quirk to test at highway speed.
Manual topic: Suspension - Air Suspension · From the General Knowledge practice bank (GK-227).