Chevrolet Malibu Engine Vibration

The Car Will Vibrate In A Pattern Rumble, Rumble, Rumble, "pause" Rumble, Rumble, Rumble, "pause" And So On. It Starts At About 55mpg. We...

I Felt A Small Vibration In My Car But Didnt Pay Attention To It. I Later Had New Brakes Put On And A Front Caliper Which They Said Was Bad...

I Just Received A Tune-up In Which I Replaced The Spark Plugs, Serpetine Belt, Fuel Filter, Upper And Lower Radiator Hoses And Pcv Valve....