The 2023 GMC Sierra 1500 debuts the fifth model year of the current fifth-generation pickup, bringing with it a few important updates and changes over the refreshed 2022 model year. Unfortunately, ...

The 2024 GMC Sierra 1500 debuts several updates and changes over the 2023 model year, including new branding for the turbocharged 2.7L I4 L3B gasoline engine. As GM Authority covered previously, the ...

In production since 2018, the 2.7-liter turbo inline-four engine referred to as L3B has been hit with a customer satisfaction program. As it happens, a handful of engines may feature cracked blocks.