[quote=garync1]Took a trip to the Beach this weekend and after the so called update to pcm notice this thing spark knocks worse when merging on to a hwy. Thought the darn thing was going to come apart.. Cruising you don't notice it but when putting the foot down its bad.. Back to dealer it goes..[/QUOT
Took back to dealer yesterday and they tighten the AC accumulator and the Air filter box and Rechecked PCM timing and All seems well for now..