Transmission & Drivetrain (A2/A3)Câu 29 / 120
A whining noise from an automatic transmission that changes with engine speed but is present in Park and Neutral most likely points to:
a.A worn output shaft bearing
b.A slipping clutch pack
c.A failing transmission fluid pump
d.A worn CV joint
Giải thích
Because the pump is driven by the converter hub whenever the engine runs, a pump-related whine is present in Park and Neutral and varies with engine rpm. Output-related noises appear only when the vehicle moves. Low fluid or aeration can produce similar sounds.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A vehicle has a final drive ratio of 3.73:1. This means the:
- Technician A says most dipstick-equipped automatics are checked with the engine running at operating temperature. Technician B says fluid level is unaffected by temperature. Who is correct?
- Technician A says a slipping band or clutch pack can cause delayed or harsh shifts. Technician B says low line pressure can cause slipping and overheating. Who is correct?
- Excessive clutch pedal free play in a manual transmission can cause:
- A gear ratio is calculated by dividing the number of teeth on the driven gear by the number on the drive gear. A drive gear with 12 teeth turning a driven gear with 36 teeth produces a ratio of:
- The pilot bearing or bushing in a manual-transmission vehicle supports the:
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với ASE Automobile Certification Series (A1–A8) · Quy trình kiểm tra