Features and Benefits:

• 2003-2022Cummins, 2001-2022 Duramax, and 2008-2022 Ford


Helps in identification of faulty diesel fuel injectors and used to diagnose engine knock sounds. Install the cap on the fuel rail in the place of the injection line. When the cylinder with the failedinjector is capped, the rail pressure will rise and the vehicle will start. Set comes with five different caps.