Hello can anyone tell what may be causing my car to jolt when I shift from park to drive? Sometimes it will turn off when I shift to drive. Also the engine is misfiring due to 2 damaged pistons and I am only driving it because i am buying a used ls1 next week. Any suggestions to why I am having trouble with shifting? Ive already replaced the transmission mount so I am thinking maybe its the torque arm mount?

 

The torque arm is possible however bear in mind a poor running engine will also cause the trans presures to be irractic and with two cylinders missfiring that could also account for the stalling when putting the car into gear,

 

Thanks for the info.