dootndo2 wrote: We have been having an issue for some time. A CEL came on and the dealer determined that 2 of the cylinders were not firing due to bad ignition coils. Those were replaced.
The shuddering continues. We were told that the problem may be a sticking EDR valve which is inside the engine block.
Anyone else have any information on EDR valve?
Thanks in advance,
dootndo2
first do this:
http://www.youtube.com/watch?v=UNTBkXWC2A8