My friend's Volvo won't even start. There is no spark at the spark plugs. As I said, we've already checked the spark plugs, ignition wires, and replaced ignition coil for testing with no result.
I think your Volvo has a different problem. There are a couple of possibilities that will cause your engine to vibrate. You might want to see first is if the ignition wires are correctly installed and matched to the correct ignition order to the ignition cap. If the ignition order is wrong, the car is still drivable but will have the symptons which you described and cause the engine to stall. Have the technician check the order first, if the order IS wrong, you can save a lot of money and time. Good luck...
BTW, my friend donated his car and got some tax deduction. He is now driving the new Volvo T5. Sweet~~
