| 0 | | All OK | Problems encountered | Operation |
|---|
| Check engine oil level.Check air filter condition. | Move on to Step 1 | Excessive oil level | Restore correct oil level |
| Filter element dirty or damaged | Replace the filter element Op. 1048A14 AIR CLEANER FILTER ELEMENT - REPLACE. |
| 1 | | All OK | Problems encountered | Operation |
|---|
| Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket and check that there are no errors present in the engine management control unit. | Move on to Step 2 | Error detected. | Continue following the instructions given by the diagnostic equipment. |
| No dialogue with the engine management control unit. | Restore the correct connection between the engine management control unit and the diagnostic socket See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 2 | BLOW-BY CIRCUIT CHECK | All OK | Problems encountered | Operation |
|---|
| Check the condition of the blow-by gas intake circuit. In particular check that there are no obstructions in the separator or in the pipes. | Move on to Step 3 | Fault detected in the blow-by circuit | Restore circuit to working order: replace the pipes if necessary |
| Fault in the separator. | Replace the separator Op. 1080D34 ENGINE OIL VAPOUR SEPARATOR - R + R |
| 3 | | All OK | Problems encountered | Operation |
|---|
| Check the condition and seal of the air intake circuit: in particular, check for oil in the pipes. | Move on to Step 4 | Circuit component damaged | Replace the damaged component |
| Oil in the intake pipes. | Clean the pipes (check source of oil) |
| 4 | | All OK | Problems encountered | Operation |
|---|
| Check EGR valve operation | Move on to Step 5 | EGR valve operation faulty. | Replace the EGR valve |
| 5 | | All OK | Problems encountered | Operation |
|---|
| Carry out cylinder compression test | Move on to Step 7 | Cylinder compression insufficient. | Move on to Step 6 |
| 6 | CHECK ON CAUSE OF INSUFFICIENT COMPRESSION | All OK | Problems encountered | Operation |
|---|
| R.R. headto check the valve sealCheck condition of cylinders/piston rings | Move on to Step 7 | Valve seal insufficient. | Overhaul the head Op. 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL |
| 7 | CORRECT OPERATION CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the fault is no longer present. | End of diagnosis | The fault persists. | Contact technical service for further information on the problem. |