BUICK REGAL SHAKE

My Car Began Shaking A Tiny Bit While Driving A Month Or Two Ago. I Had The Tire Pressure Checked And That Didn't Do Anything. Now It...

I Recently Had The Front Right Tire Plugged And The Valve Stem Replaced. A Day Later The Car Shakes At 60 Mph. When I Let Off The Gas It...

I 1st Thought It Was Tires And They Looked Great So I Rotated Them. Then I Drove Car Again And Figured Out It Starts Shimmyin When I...

When Driving @ 55mph And Want To Give It Gas, Car Starts To Shake It Feels Like It's Not Getting Gas Or Something