I have a 2008 Chevy Malibu 2.4l, when I'm stopped in park it runs fine. When it's in idle in Drive, it has a good shake to it. I've replaced spark plugs and wires, coil packs, did an oil change and topped fluids, and it still continues to slightly. Then there's an issue with the acceleration, it has trouble picking up speed and when I get it up to about 30mph, it gets a little jerky, and the front end will begin to shake feeling like a jeeps "death wobble". I'm not sure on any recalls about the Cats or any other recalls but I'm not too great on cars and could really use some info/help.