| Cause | Correction |
|---|---|
| Electrical or Manual Fuel Shutoff Not Closing | Verify solenoid is not being energized by a short in the wiring. Check the linkage in the shutoff lever for binding. Check the ability of the spring in the pump to pull the lever to the shutoff position. |
OK | |
| Engine Running on Fumes Drawn into Air Intake. | Locate and isolate the source of fumes. |
| OK | |
| Fuel Leaking to Intake Manifold. | Check for porosity between the fuel filter mounting to the intake manifold. |
Diesel IQ is a free resource for Power Stroke and Cummins Diesel engine owners and technicians.
Preparatory Steps: Clean debris. Using a 19 mm wrench, remove the plug and regulator valve. Clean and inspect the bore and regulator valve before assembly. CAUTION: In order to regulate the oil pressure, the valve must move freely in the bore Install the regulator and spring. Torque Value: 80 N•m [60 ft-lb]
NOTE: The long term integrity of the charge air cooler system is the responsibility of the vehicle and component manufacturers; however, the following symptoms can be checked by any Authorized Repair Location: Intake Manifold Pressure – Check Install pressure gauge, Part No. ST-1273, to the fitting in the turbocharger outlet. Install another pressure gauge, Part No. ST-1273,…
As diesel engine owners and technicians we are very concerned with the treatment and protection of our engines. One of the primary concerns is the quality of air that enters the turbo and subsequently the engine. Even very small amounts of dust and dirt can be extremely damaging. Which is the reason for using an…
Preparatory Steps: Disconnect the cold starting aid, if used. Remove the air crossover tube. Remove high pressure fuel lines. Drain 2 liters (2.1 U.S. Quarts) of coolant. Using an 8 mm wrench, remove the coolant supply tube (1) and the coolant return tube (2). Remove the high pressure fuel lines. Using a 10 mm…
Purpose:To determine if there is enough oil or oil of sufficient quality to operate the injectors. Recommended Procedure:Check oil level with dipstick when vehicle is on level ground. If there is no oil or very little oil in the crankcase, the injectors will not operate. If the oil level on the dipstick is overfull, it is…
