Affected drivers may notice a loud knocking or banging noise from the engine, or performance issues when driving.

This is a major update to a story I posted yesterday. GM investigated 28,000 complaints of engine problems.

General Motors (NYSE:GM) announced a recall of nearly 600,000 vehicles in the U.S. due to potential engine failure risks. The recall affects certain Cadillac Escalades and Escalade ESVs; Chevrolet Silverado 1500s,