In the event of a bearing failure, significant engine repair is usually required. However, if a connecting rod malfunction is recognized in a timely manner, then replacing the bearing shells is sufficient to eliminate the malfunction.
Signs of bad bearings
In the parking lot, bring the engine speed to medium speed, release the gas. Is there a slight knocking sound when the rpm's are lowered? Do you hear this light tapping also when accelerating quickly?
If so, then it is better not to go further. The malfunction may worsen, after which it will be impossible to eliminate it with simple methods.
A loud knock at high engine speeds, which becomes quieter or stops altogether when the accelerator pedal is released, indicates a serious bearing failure.
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