There is a device called the TCC (torque convertor clutch lockup). If it is stuck (engaged) all the time it will cause the car to shake and stall.
It is only supposed to engage at 35-45mph after shifting into high gear.
You can try removing the connector and see if the shaking stops, otherwise it will need to be replaced or further diagnosis performed.
Thursday, May 14th, 2009 AT 7:02 AM