If the engine fuel system is run dry, fill the fuel tank and prime (purge) the fuel system to remove air bubbles from the system.…
NOTE: 5P2720 Self-Sealing Probe Adapter and 5P2718 Pressure Probe may be used with the tools needed, to allow installation of pressure probes in the future.…
A problem with the components that send fuel to the engine can cause low fuel pressure. This can decrease engine performance. Fuel System Fuel System…
Pedal-Mounted Throttle Sensor The Pedal-Mounted Throttle Sensor is mounted on the back of the OEM supplied pedal. No adjustments are required for the Pedal-Mounted Throttle…
The Throttle Position Sensor (TPS) is used to provide a throttle signal to the Electronic Control Module (ECM). Sensor output is a constant frequency signal…
Probable Cause: Install a 4P8278 sight glass in the fuel return line and operate the engine to check for gas bubbles, an indication of air…
Probable Cause: * Engine Design * Defective Valve Or Seat 1. Engine design: On diesel engines a small amount of soot is normal. This is…
A. Outside Leaks (Go to Step 1) Probable Cause(s): * Leaks In Hoses Or Connections * Leaks In The Radiator And/Or Expansion Tank * Leaks…
Probable Cause: * Defect In Unit Injector Sleeve 1. Defect in unit injector sleeve: Remove unit injectors and inspect sleeves in cylinder head unit injector…
Probable Cause(s): * Defective Upper Seal On Unit Injector * Porosity In Cylinder Head * Porosity In Fuel Filter Base * Defective Seal In The…