D35 LOW ENGINE OIL PRESSURE - Alfa - 147 - eLearn

The warning light indicates a decrease in pressure in the engine lubrication circuit.

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Check: that the engine oil level is correct that there are no leaks from the lubrication circuit	Continue to Step 1	Oil level low	Top up the engine oil level
		Continue to Step 1	Leaks detected	Eliminate the leaks
1	CHECK LUBRICATION SYSTEM PRESSURE	All OK	Problems met	Operation
	Check that the lubrication system pressure is correct Op. 0510C20	Continue to Step 4	Low engine oil pressure	Continue to Step 2
2	CHECK ON LUBRICATION SYSTEM	All OK	Problems met	Operation
	Check that the engine oil pump is working properly Op. 1084B18	Continue to Step 3	Oil pump faulty	Replace the oil pump Op. 1084B10
3	CHECK ON LUBRICATION SYSTEM	All OK	Problems met	Operation
	Check: seal of crankshaft channel plugs main bearing/connecting rod bearing clearance	Continue to Step 4	Caps faulty	Replace the plugs Op. 1024A20
		Continue to Step 4	Excessive clearance	Restore correct clearance
4	CORRECT OPERATION CHECK	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists	Search for the fault starting from another symptom'