Why Does the Engine Make Abnormal Noises When Accelerating?

[SanPaisley]

Possible causes include issues with the filter, spark plugs, ignition wires, gasoline, fuel filter, carburetor, or fuel pump. Below are some related explanations about the causes of abnormal engine noises: 1. Abnormal noises caused by irregular operation: After starting the vehicle, the noise can be heard even from a distance, and the engine runs extremely unevenly during operation. It also consumes engine oil and coolant quickly. This is caused by early ignition timing and requires adjustment of the engine's ignition timing. 2. Cylinder gasket noise: Cylinder gasket noises mostly occur when the engine is cold and are less noticeable when the engine is warm. The cause is excessive valve clearance, which leads to collisions between the valve stem and the rocker arm, requiring timely adjustment of the clearance.