Change Air Cooler (CAC) low efficiency (DTC P026A) Exhaust Gas Recirculation (EGR) cooler low efficiency (DTC P2457) NOx sensor position 1 slow response (DTC P22F9) The hazards: if the ECM is unable ...
General Motors released a service update to address an issue with the fuel injector diagnostics in certain 2021 model-year Chevy Silverado HD and GMC Sierra HD trucks. The hazards: while this issue ...
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