What is the reason for slight shaking when stepping on the brake in D gear?

1 Answers
MacKennedy
07/30/25 1:40am
Possible reasons include: aging of engine or transmission mounts, gear engagement impact in the transmission, or improper engine air-fuel mixture matching. Below is an analysis of the causes of car shaking: 1. Engine or transmission mounts, commonly known as engine mounts, may be affected by aging or improper installation. Further inspection is needed to confirm whether replacement is required; 2. Gear engagement impact in the transmission, caused by impurities or dirt in the transmission fluid, leading to poor performance of the transmission hydraulic system. Further inspection of the transmission fluid and transmission components is necessary; 3. Improper engine air-fuel mixture matching, such as poor engine performance, issues with spark plugs, fuel injectors, etc., requires further inspection to confirm the cause of the fault.
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