3233204 - W05 WHITE EXHAUST FUMES

There is a large amount of exhaust fumes, with light coloured smoke.
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
First check that there is no water or other fluids in the fuel tank Continue to Step 1 Presence of dirt in the fuel tank Clean the fuel tank Op.   1040A10 
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
1.6 TS 1.8 TS [d] 2.5 V6Connect diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Check that there are no faults in the engine management control unit Continue to Step 2 An error is detected in the control unitContinue following the instructions for the diagnostic equipment
Lack of dialogue with the control unit Restore the connection between the engine management control unit and the diagnostic connector See   E5030  PETROL ENGINE ELECTRONIC MANAGEMENT
1.9 JTD 8v 2.4 JTD 10vConnect diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Check that there are no faults in the engine management control unit Continue to Step 2 An error is detected in the control unitContinue following the instructions for the diagnostic equipment
Lack of dialogue with the control unit Restore the connection between the engine management control unit and the diagnostic connector See   E5050  DIESEL ENGINES ELECTRONIC MANAGEMENT
2ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
1.6 TS 1.8 TS [d] 2.5 V6Using the diagnostic equipment (Examiner or other instruments) carry out the active diagnosis of the injectors Continue to Step 3 Injector connections faulty Restore the connection of the injectors with the control unit, See   E5030  PETROL ENGINE ELECTRONIC MANAGEMENT
Injectors faulty Replace injectors Op.   1056B70 
1.9 JTD 8v 2.4 JTD 10vUsing the diagnostic equipment (Examiner or other instruments) carry out the active diagnosis of the injectors. Continue to Step 3 Injector connections faulty Restore the connection of the injectors with the control unit, See   E5050  DIESEL ENGINES ELECTRONIC MANAGEMENT
Injectors faulty Replace injectors Op.   1060F10 
3CHECKING CYLINDER HEAD GASKETAll OKProblems metOperation
1.6 TS 1.8 TS [d] 1.9 JTD 8v 2.4 JTD 10v

Check::

  • that the cylinder head tightening is correct
  • that the gasket is not leaking
Continue to Step 4 Cylinder head tightening not correctRestore correct tightening
Gasket damaged Replace the gasket Op. 1016C11
2.5 V6

Check::

  • that the cylinder head tightening is correct
  • that the gasket is not leaking
Continue to Step 4 Cylinder head tightening not correctRestore correct tightening
Gasket damaged Replace the gasket Op.   1016D11 
4CHECKING BLOW-BY CIRCUITAll OKProblems metOperation
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 Continue to Step 5 Blow-by circuit faultyRestore the operation of the circuit; if necessary, replace the pipes (see Assembly 1080D)
Fault in the separator Replace the separator Op.   1080D34 
5CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'
There is a large amount of exhaust fumes, with light coloured smoke.
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation

First check:

  • no water or other fluids in the fuel tank
  • engine oil level
Continue to Step 1 Presence of dirt in the fuel tankClean the fuel tank
Level too high Top up engine oil level Op.   1084A10 
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket.Check that there are no faults in the engine management control unit Continue to Step 2 Error detected in the control unitContinue following the instructions for the diagnostic equipment
Lack of dialogue with the control unit Restore the connection between engine management control unit and diagnostic connector See   E5050  DIESEL ENGINES ELECTRONIC MANAGEMENT
2CHECKING CYLINDER COMPRESSIONAll OKProblems metOperation
Carry out the cylinder compression test Continue to Step 3 Insufficient cylinder compression Continue to Step 4
3CHECKING CYLINDER HEAD GASKET AND VALVE SEALSAll OKProblems metOperation

Check::

  • that the cylinder head tightening is correct
  • that the gasket is not leaking
  • that the valve seals are not leaking
Continue to Step 5 Cylinder head tightening not correct Proceed with removal/refitting of the cylinder head and tighten it correctly Op.   1016C10 
Gasket damaged Replace the cylinder head gasket Op.   1016C10 
Oil seals leaking Replace valve oil seals Op.   1016E10 
4CHECKING CAUSE OF INSUFFICIENT COMPRESSIONAll OKProblems metOperation

With the cylinder head removed, check:

  • valve seal
  • condition of cylinders/piston rings
Continue to Step 5 Insufficient valve sealOverhaul the cylinder head
Wear on cylinders/piston rings outside toleranceRestore correct operating clearances
5CHECKING BLOW-BY CIRCUITAll OKProblems metOperation
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 Continue to Step 6 Fault in the pipe from separator to intakeRestore the correct operation of the circuit: if necessary, replace the pipes
Fault in separator (rocker cover)Restore the correct operation of the circuit; if necessary replace the rocker cover
6CHECKING SEAL OF TURBOCHARGER GASKETSAll OKProblems metOperation
Check that there are no engine oil leaks from turbocharger blade spindle Continue to Step 7 Insufficient gasket seal Replace turbocharger Op. 1064A10
7CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'