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.

Need verification? Check out the supplied chart on flow rate versus system pressure and voltage. As mentioned previously, fuel-injected engines typically run fuel pressure ranging from 38-60 psi.

Beginning in 1986, the Mustang GT had SEFI with eight 19-lb/hr fuel injectors and return-style fuel injection. In 1999, Ford went to a no-return fuel injection system with fewer parts and less hassle.

The fuel injectors simply push onto the fuel rails and are held in place with small clips. Just spread the clip to remove the injector. Flow Rate ...