22 · Diagnostics

White exhaust fumes

Make: Alfa Romeo
Model: GT Factory Service Manual
Year: 2003–2010
Section: Emissions › White exhaust fumes

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Fault diagnosisWhite exhaust fumes

WHITE EXHAUST FUMES

2.0 JTS, 3.2 V6, 1.9 JTD 16V

There is a large amount of exhaust fumes, with light coloured smoke

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
1.9 JTD 16V 3.2 V6	Preliminarily check: No water or other fluids in the fuel tank Engine oil level	Continue to Step 2	Presence of dirt in the fuel tank	Clean the fuel tank Op. 1040A24
1.9 JTD 16V 3.2 V6		Continue to Step 2	Level too high	Top up the engine oil level Op. Op. 0010T11 ENGINE OIL CHECK LEVEL AND TOP UP
2.0 JTS	Preliminarily check: Whether there is service information on the subject 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. 1040A24
1	ROAD TEST THE VEHICLE	All OK	Problems met	Operation
2.0 JTS	With the engine at operating temperature and after a long period of deceleration, check when then accelerating whether the problem is considerably worse	Continue to Step 3	Increase in fumes during acceleration (after acceleration) caused by	Continue to Step 3
2.0 JTS		Continue to Step 3	oil coming from the flexible bands or the valve guides
2	CHECK WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
1.9 JTD 16V 3.2 V6	Connect the Examiner diagnostic equipment to the diagnostic connector and check that there are no faults in the errors ambient at the engine management control unit	Continue to Step 3	An error is detected in the control unit	Continue following the instructions for the diagnostic equipment
3	CHECKING BLOW-BY CIRCUIT	All OK	Problems met	Operation
	Check the condition of the blow-by gases intake circuit. In particular, check that there are no obstructions in the separator or in the pipes	Continue to Step 4	Fault in the pipe from the intake to the separator	Restore the correct operation of the circuit: if necessary, replace the pipes
		Continue to Step 4	Fault in separator (rocker cover)	Restore the correct operation of the circuit: if necessary, replace the separator
4	CHECK ON CYLINDER COMPRESSION	All OK	Problems met	Operation
	Carry out the cylinder compression test Op. Op. 0510A10 CYLINDER COMPRESSION - CHECK FOR LOOSE SPARK PLUGS OR INJECTORS	Continue to Step 6	Cylinder compression insufficient	Continue to Step 5
5	CHECKING CAUSE OF INSUFFICIENT COMPRESSION	All OK	Problems met	Operation
1.9 JTD 16V	R.R. cylinder head Op. Op. 1016C10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL Check: The condition of the cylinders/piston rings The seal of the valve oil seals	Continue to Step 6	Wear on cylinders/piston rings outside tolerance	Restore the correct clearances
1.9 JTD 16V		Continue to Step 6	Insufficient valve oil seal	Replace the oil seals, if necessary, overhaul the head Op. Op. 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL
2.0 JTS	R.R. cylinder head Op. Op. 1016C10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL check: The condition of the cylinders/piston rings The seal of the valve oil seals	Continue to Step 7	Wear on cylinders/piston rings outside tolerance	Restore the correct clearances
2.0 JTS		Continue to Step 7	Insufficient valve oil seal	Replace the oil seals, if necessary, overhaul the head Op. Op. 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL
3.2 V6	R.R. cylinder head Op. 1016D11 Check: The condition of the cylinders/piston rings The seal of the valve oil seals	Continue to Step 7	Wear on cylinders/piston rings outside tolerance	Restore the correct clearances
3.2 V6		Continue to Step 7	Insufficient valve oil seal	Replace the oil seals, if necessary, overhaul the head Op. Op. 1016E26 CYLINDER HEADS - OVERHAUL
6	CHECKING SEAL OF TURBOCHARGER GASKETS	All OK	Problems met	Operation
1.9 JTD 16V	Check: For engine oil leaks from turbocharger impeller spindle For excessive turbocharger impeller shaft clearance	Continue to Step 7	Presence of leaks	Replace turbocharger Op. Op. 1064A24 VARIABLE GEOMETRY TURBOCHARGER EXHAUST MANIFOLD ASSEMBLY SLEEVELEADING TO EXHAUST PIPE R R
1.9 JTD 16V		Continue to Step 7	Excessive clearance present	Replace turbocharger Op. Op. 1064A24 VARIABLE GEOMETRY TURBOCHARGER EXHAUST MANIFOLD ASSEMBLY SLEEVELEADING TO EXHAUST PIPE R R
7	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis

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Parts & tools for this job For 2003 Alfa Romeo GT

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