What Causes the Whining Noise in the New Mondeo's Engine?

[KateAnn]

New Mondeo engine whining noise can be attributed to the following reasons: Insufficient engine oil: This leads to inadequate lubrication of various components, resulting in wear noise. The issue can be resolved by adding engine oil. Poor fuel combustion: Low injection pressure, dripping injectors, poor fuel atomization, and delayed fuel supply timing can all cause poor fuel combustion, leading to engine knocking. The injectors should be removed for inspection and adjustment, and the fuel supply timing should be adjusted. If necessary, replace the components to meet specifications. Premature fuel supply timing: If the injector starts spraying fuel before the piston reaches the designated position, fuel combustion occurs prematurely. The high-pressure gas in the cylinder impacts the piston, producing a rhythmic noise. Reducing the throttle makes the knocking very noticeable. Adjusting the fuel supply advance angle can resolve this issue.