22 · Diagnostics

Excessive oil consumption

Make: Fiat
Model: Doblò Factory Service Manual
Year: 2000–2010
Section: Consumption /leaks/ wear › Excessive oil consumption

‹ Prev Excessive fuel consumption Next › Engine coolant consumption

Fault diagnosisExcessive oil consumption

EXCESSIVE OIL CONSUMPTION

High consumption during the first few thousand kilometres is considered normal

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Check that the level of the engine oil is not high Op. 0010T11 Check that there is no engine oil in the coolant. Check that the end of the exhaust pipe is not dirty with oil	Continue to Step 1	Engine oil leaks	See table X12 ENGINE OIL LEAKS
			Oil level outside the limits	Restore the correct level Op. 0010T11
			Engine oil leaks	See table X12 ENGINE OIL LEAKS
			Oil level outside the limits	Continue to Step 3
			Oil level outside the limits	Continue to Step 3
1.9 DIESEL	Check that the level of the engine oil is not high Op. 0010T11 Check that there is no engine oil in the coolant. Check that the end of the exhaust pipe is not dirty with oil	Continue to Step 2	Engine oil leaks	See table X12 ENGINE OIL LEAKS
			Oil level outside the limits	Restore the correct level Op. 0010T11
			Oil in the cooling circuit	Continue to Step 2
			End of the exhaust pipe dirty with oil	Continue to Step 3
			Exhaust fumes	Continue to Step 3
1	SPARK PLUG CHECK	All OK	Problems met	Operation
1.2 8v	Check that there is no oil fouling the spark plugs	Continue to Step 2	Spark plugs fouled by oil	Replace the spark plugs Op. 5510D10 Continue to Step 2
2	CYLINDER BLOCK/CRANKASE SURFACE CHECK	All OK	Problems met	Operation
1.2 8v	Remove the cylinder head Op. 1016C10 Check that the following are absent: oily deposits on the valves; defects in the cylinder block/crankcase surface; defects in the cylinder head gasket;	Continue to Step 3	Cylinder block/crankcase surface defective	Reface the cylinder block/crankcase
1.2 8v		Continue to Step 3	Oily deposits on the valves	Overhaul the cylinder head Op. 1016E10
1.9 DIESEL	Remove the cylinder head Op. 1016C10 Check that the following are absent: oily deposits on the valves; defects in the cylinder block/crankcase surface; defects in the cylinder head gasket;	Continue to Step 3	Cylinder block/crankcase surface defective	Reface the cylinder block/crankcase
1.9 DIESEL		Continue to Step 3	Oily deposits on the valves	Overhaul the cylinder head Op. 1016E10
1.2 8v Climatizzatore	Remove the cylinder head Op. 1016C11 Check that the following are absent: oily deposits on the valves; defects in the cylinder block/crankcase surface; defects in the cylinder head gasket;	Continue to Step 3	Cylinder block/crankcase surface defective	Reface the cylinder block/crankcase
1.2 8v Climatizzatore		Continue to Step 3	Oily deposits on the valves	Overhaul the cylinder head Op. 1016E10
3	CYLINDER LINER/BORE CHECK	All OK	Problems met	Operation
	Check the cylinder liners/bores. In particular: no deep machining scoring; no vitrification of the liners/bores; make sure that there is no ovality or wear	Continue to Step 4	Deep scoring or excessive ovality	Replace the engine
			Bores/liners vitrified	Regrind the cylinder
			Deep scoring or excessive ovality	Replace the engine
			Bores/liners vitrified	Replace the circlips Op. 1028H60
4	ENGINE OIL CONSUMPTION CHECK	All OK	Problems met	Operation
	Check the engine oil consumption to see whether the symptom reported by the customer exists		Excessive engine oil consumption	Continue to Step 2

‹ Prev Excessive fuel consumption Next › Engine coolant consumption

Parts & tools for this job Staging For 2000 Fiat Doblò

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.