Certain units of the 2023-2024 GMC Canyon pickup are included in a new GM Service Update containing a fix available for a fuel injector flow rate problem.

GM has issued a voluntary emission recall for the 2024 Chevy Silverado HD and 2024 GMC Sierra HD trucks to properly adjust fuel injector flow.

It is customary to identify an injector by a number of different characteristics: its flow rate, fuel feed point, attachment to the fuel rail, electrical resistance, and tip design.