ASE A4 Practice Test: Questions & Answers: Guaranteed A Plus Guide Score

A driver says that the front end of his car vibrates up and down while traveling at most road speeds. Tech A says that too much runout of the front wheels could be the cause. Tech B says that a static out of balance of the front wheels could be the cause. Who is right? A. Tech A only B. Tech B only C. Both A and B D. Neither A or B (Ans - C. Both Techs are right. Too much runout or static out of balance in the front wheels will cause a vibration A vehicle has front wheel shimmy at low speed and requires increased steering effort. Tech A says that too much positive camber could be the cause. Tech B says that too much Positive caster could be the cause. Who is right? A Tech A only B. Tech B only C. Both A and B D. Neither A or B (Ans - B. Excessive positive caster will increase steering effort, cause the steering wheel to return too rapidly. cause wander at high speed and shimmy at low speed