Certain units of the 2023 through 2024 GMC Sierra 1500 pickup motivated by the turbocharged 2.7L I4 L3B gasoline engine are included in a new GM Service Update containing a fix available for a fuel ...
GM EcoTec3 V8 lifter failures on L84 and L87 engines stem from low oil pressure during Dynamic Fuel Management cycles. This forensic analysis breaks down how ECM oil pump programming causes incomplete ...
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