It sounds like a misfire on one or more cylinders. Run a compression test and if that checks out ok, try a tune-up. Sounds like a vacume leak. Check all vacume hoses. Start at brake booster
wheels off van raised engine shakes side to side at 40 kmh
The ground starts shaking.
This problemsounds like the tires might need to be rotated and balanced. the car might need to be aligned if the car pulls to the right when you are driving straight.
you steering wheel starts shaking because you probably have warped roders your shaking will get worse at higher speeds and when pressing the brake
It is the VANOS working in conjunction with the cold start injector... once your engine reaches that proper temp, the "shaking" goes away.
You feel something shaking.
The ground starts shaking lol
You are dehydrated
you have to keep shaking it until it starts to beep ^.^ its frustrating
your problem is yu have a broken motor mount that will make the car shake when you start it and step on it
If the car starts shaking in second gear the motor mounts are probably going bad. Lift the hood of the vehicle and inspect the rubber inserts. If they are cracked and brittle they will need replacement.
The sign is if the ground starts moving or shaking or if it starts putting out smoke or gas.