939010157 - W011 EXCESSIVE EXHAUST FUMES
The customer complains of: Excessive blue fumes| Results of the tests | ||||||
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation | ||
|---|---|---|---|---|---|---|
| Check that the engine oil level is correct Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY Check that the air intake/vacuum circuit is working properly See Test 1048OA AIR INTAKE/VACUUM CIRCUIT CHECKCheck the condition of the fuel supply circuit and make sure that it is working properly See Test 1040OA FUEL SUPPLY CIRCUIT CHECKCheck the operation of the low pressure supply circuit See Test 1060OB CHECK ON SUPPLY LOW PRESSURE FUEL CIRCUIT | Move on to Step 1 | Oil level incorrect | Restore the correct engine oil level Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY | |||
| 1 | AMBIENT PARAMETERS CHECK | All OK | Problems encountered | Operation | ||
| Select the following control unit at the diagnostic equipment: EDC 16C39 Diesel electronic injection control unit. Check the value of the following parameters:. Battery voltage See Test 5530BB BATTERY VOLTAGE CHECK. Measured air mass See Test 1060GG MEASURED AIR MASS CHECK. Atmospheric pressure See Test 1060GD ATMOSPHERIC PRESSURE CHECK. Engine coolant temperature See Test 1060OE CHECK ON OPERATION OF COOLANT TEMPERATURE SENSOR. Diesel temperature See Test 1060EA DIESEL FUEL TEMPERATURE CHECK. Engine rpm See Test 1060GI ENGINE SPEED CHECK | Move on to Step 2 | |||||
| 2 | PREHEATING RELAY ACTIVE DIAGNOSIS | All OK | Problems encountered | Operation | ||
Carry out the active diagnosis for the preheating relay, checking that the result is positive.
| Move on to Step 4 | The result of the active diagnosis is negative | Move on to Step 3 | |||
| 3 | HEATER PLUGS CHECK | All OK | Problems encountered | Operation | ||
| Check that the heater plugs are working properly See Test 5520CA GLOW PLUGS FUNCTIONAL TEST | Move on to Step 4 | |||||
| 4 | ELECTRICAL EQUIPMENT CHECK | All OK | Problems encountered | Operation | ||
| Check that fuse F1 has not blown (it is the last one at the bottom of the vertical row) | Move on to Step 5 | Fuse F1 has blown | Restore the connections or, if necessary, replace the junction unit in the engine compartment Op. 5505A13 ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R. | |||
| 5 | CYLINDER COMPRESSION CHECK | All OK | Problems encountered | Operation | ||
| Carry out the cylinder compression check Op. 0520G15 COMPRESSION TEST - CHECK WITH EXAMINER WITH SPARK PLUGS/INJECTORS REMOVED | End of diagnosis | Cylinder compression insufficient | Move on to Step 6 | |||
| 7 | CHECK ON CAUSE OF INSUFFICIENT COMPRESSION | All OK | Problems encountered | Operation | ||
| Carry out the Op. 1016C10 SINGLE CYLINDER HEAD - R.R. AND REPLACE GASKET to check the valve sealCheck condition of cylinders/piston rings | End of diagnosis | Valve seal insufficient | Overhaul the head Op. 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL | |||
| Cylinder/ring wear outside tolerances | Restore correct operating clearances | |||||
