EVO ENGINE / TURBO / DRIVETRAIN Weird sound from the engine At idle the car makes a weird rattling sound and steering wheel shakes what could this be 2 Replies 179 Views By: Tplancerevo9 | May 29, ...

The 2012 Sierra 1500 is available in three cab sizes, three bed lengths, two-wheel drive, four-wheel drive, or all-wheel drive and with a base V-6 or five optional V-8 engines, and two transmissions.