Why does the engine shake when you step on the brakes?

There are generally two reasons for this situation.

First, when braking, is the engine idling below 800 rpm? If it is below 800 rpm (due to brake vacuum), it is recommended to clean the throttle.

Second, if there is still such trouble in cleaning the throttle, it is recommended to repair the engine and gearbox foot glue because they are out of order.

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