What is the solution for the buzzing noise at 2000 RPM in the X-Trail?
1 Answers
If there is abnormal noise during instant startup, it may be caused by the starter motor's gear not retracting quickly enough, resulting in flywheel gear grinding noise. The starter motor needs to be inspected. If there is abnormal noise during engine idle after startup, the fault point is likely due to excessive clearance between the hydraulic tappets and valves inside the engine cylinder head.