General Motors — 2011 silverado engine knock
I purchased a 2011 Silver with 36, 600 miles, noticed a engine knock while it warmed up to running temp. called GM they said take it to dealer. Took it to Joseph Chevrolet Cincinnati, Ohio. They did a intake cleaning and said it was fixed. 1, 150 miles later it is back the same way. Called Todd again at GM 3 times now with no response. Buyer beware. GM does not back there products. The truck has the 5.3 L AFM motor. well maintained and never been abused or towed anything. Thanks GM for nothing.