2021 denali w 6.2L. about to run out of powertrain warranty. Have not had the lifter problem yet… but VERY concerned based on multiple dealership and forum reports. Technicians are being muffled on ...
My 2018 Silverado Z-71 LTZ 6.2 L with 170,000 miles is beginning to have lifter issues in cylinder number 4. I was originally told by the dealer that it was the exhaust manifold gasket. I won several ...
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