GM is recalling 597,630 trucks and SUVs equipped with potentially defective 6.2-liter V8 engines. Impacted models include the Cadillac Escalade, Chevrolet Silverado 1500, and GMC Sierra 1500. The engines may have internal debris or an out of spec crankshaft,

GM recalls nearly 600,000 trucks and SUVs over potential engine issues: Check the impacted models - Impacted owners can get their engines fixed for free at any Cadillac, Chevrolet or GMC dealership

The recalled vehicles include Chevrolet Silverados, Suburbans and Tahoes, along with Cadillac Escalades and GMC Sierras.