General Motors has issued a stop-sale order on certain units of the 2022 Chevy Silverado HD, GMC Sierra HD, and Chevy Silverado MD (4500HD / 5500HD / 6500HD) equipped with the 6.6L V8 L5P turbodiesel ...
GM Authority has learned that GM intends to buy back certain Chevy Silverado HD and GMC Sierra HD units back from customers due to apparent quality issues with the 6.6L L5P V8 Duramax turbo-diesel ...
Enhancing performance of the 6.6L Duramax L5P diesel engine that powers '17-to-current GMC and Chevrolet trucks is not an easy proposition. General Motors' calibration engineers have made it very ...