22 · Diagnostics

Engine oil leaks

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

‹ Prev Engine coolant leaks Next › Gearbox/differential oil leaks

Fault diagnosisEngine oil leaks

ENGINE OIL LEAKS

A leak of engine oil can be seen with dripping and/or fouling of the engine

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Preliminarily carry out a visual inspect to locate the component or area which is leaking. Check that there is no engine oil in the coolant. If the visual inspection is not sufficient, wash the engine, dry it and cover the parts involved in talc: road test the vehicle to identify the leak	Continue to Step 1	Leak from the drain plug	Continue to Step 1
			Leak from the sump	Continue to Step 2
			Leak from the oil filter	Continue to Step 3
			Leak from the exhaust valve	Continue to Step 4
			Leak from the engine gaskets	Continue to Step 5
			Oil in the cooling circuit	Continue to Step 5
1	DRAIN PLUG CHECK	All OK	Problems met	Operation
	Check the condition and the seal of the oil drain plug	Continue to Step 2	Tightening of drain plug not correct	Restore the correct tightening
2	OIL SUMP CHECK	All OK	Problems met	Operation
	Verify: the condition of the oil sump; the seal of the sealant between the sump and the crankcase that the bolts fixing the sump are correctly tightened	Continue to Step 3	Oil sump damaged or distorted	Replace the oil sump Op. 1020A20
		Continue to Step 3	Oil sump damaged or distorted	Restore the correct tightening
3	OIL FILTER CHECK	All OK	Problems met	Operation
	Verify: the condition of the oil filter; the seal and condition of the gasket	Continue to Step 4	Oil filter damaged or distorted	Replace the oil filter and gasket Op. 1084B30
4	OIL PRESSURE RELIEF VALVE CHECK	All OK	Problems met	Operation
1.2 8v	Check the condition of the oil pump pressure relief valve	Continue to Step 5	Valve stuck in closed position	Replace the oil pump Op. 1020D14
1.9 DIESEL	Check the condition of the oil pump pressure relief valve	Continue to Step 5	Valve stuck in closed position	Replace the oil pump Op. 1020D14
1.2 8v Climatizzatore	Check the condition of the oil pump pressure relief valve	Continue to Step 5	Valve stuck in closed position	Replace the oil pump Op. 1020D14
5	ENGINE GASKETS CHECK	All OK	Problems met	Operation
	Gain access to the crankshaft and camshaft oil seals	Check the seal of these gaskets Continue to Step 6	Crankshaft gaskets damaged	Replace the gaskets involved Op. 1024A10
	Gain access to the crankshaft and camshaft oil seals	Check the seal of these gaskets Continue to Step 6	Crankshaft gaskets damaged	Replace the gaskets involved Op. 1036B14
6	CHECKING CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists	Search for the fault starting from another symptom'

‹ Prev Engine coolant leaks Next › Gearbox/differential oil leaks

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.