2006 9-3 Aero Automatic w/71k miles. Under harder acceleration the car will start to "buck". The boost gauge goes up and down, the transmission will engage and disengage and sometimes slips and the engine will rev up. There are no engine codes. This vehicle was recently purchased, so...

I put my foot down and the car judders i drive a l reg 9000 cse 2.0 turbo had the starter motor problems changed 2 door handles (due to stolen car hitting it) glued a lot of brittle plastic and now it misses when you accelerate help

My recently aligned SAAB with new Saab rims and new balanced tires drives without a shimmer well past posted speeds. It has a vibration only when accelerating hard in 4th gear between 65-75 mph. Feels like a tire out of round. While cruising at the same speed there isn't any vibration. The car...