What causes the buzzing sound during acceleration between 1500 to 2000 RPM?
1 Answers
1500 to 2000 RPM acceleration buzzing sound reasons are as follows: Engine buzzing sound during idle: When the car is in normal idle state, the buzzing sound may be caused by the operation of the electronic fan used for radiator cooling. However, this sound is intermittent. If the buzzing sound persists, it may indicate a malfunction in the temperature sensor or temperature regulator. The owner should promptly inspect these components to avoid abnormalities during driving that could lead to more severe vehicle failures and financial losses. Buzzing sound during low speed or gear shifting: The buzzing sound during low speed or gear shifting is generally caused by excessive clearance between the piston and cylinder wall. This phenomenon can occur due to overly tight assembly during installation or abnormal wear. Another possible reason is engine knocking. In the early stages of engine knocking, a buzzing sound may be heard, which could be caused by advanced ignition timing or excessive carbon deposits in the cylinder leading to knocking.