What should I do if my Cummins engine has low power?
What should I do if my Cummins engine has low power? Check the air delivery system. Cummins diesels must have a good supply of air at all times. If the engine has had low power over a period of time, check the air intake system and filter for excessive dirt or debris. Check the turbocharger while the engine is running. Can a supply line be loose on a Cummins Engine? This is also a good way to verify that the injector pump’s shut down solenoid is allowing fuel to the injector. If your supply fuel line is loose, it is...