Engine coolant overheating signalled by the instrument / with visible vapour venting

Make: Fiat
Model: Stilo Factory Service Manual
Year: 2001–2007
Section: Engine › Engine coolant overheating signalled by the instrument / with visible vapour venting

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Fault diagnosisEngine coolant overheating signalled by the instrument / with visible vapour venting

ENGINE COOLANT OVERHEATING SIGNALLED BY THE INSTRUMENT / WITH VISIBLE VAPOUR VENTING

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	First check: the coolant level that there are no leaks that there is no engine oil in the expansion tank that the cooling radiator is not distorted or faulty that the radiator is not dirty / blocked	Continue to Step 1	Level not correct	Top up level
			Leaks detected	Move on to the step concerned
			Level not correct	Top up level
			Leaks detected	Replace the radiator
			Leaks detected	Clean/wash the radiatorOp. 1088A20
1	CHECK ON CAP SEAL	All OK	Problems met	Operation
	Check the seal of the expansion tank cap	Continue to Step 2	Cap faulty	Replace the cap
2	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Check that there are no errors memorized Carry out active diagnosis of fan Check the fan operating cycle	Continue to Step 5	There are errors in the control unit	Continue according to the instructions for the diagnostic equipment
		Continue to Step 5	There are errors in the control unit	Continue to Step 3
3	CHECK ON ENGINE COOLING ELECTRICAL CIRCUIT	All OK	Problems met	Operation
	Check that the fan control/power line is working properly See E5020 ENGINE COOLING	Continue to Step 4	Connections not correct	Restore connections See E5020 ENGINE COOLING
4	FAN OPERATION CHECK	All OK	Problems met	Operation
	Supply the fan directly and check its operation See E5020 ENGINE COOLING	Continue to Step 5	Fan not working	Replace fan Op. 1088E10
5	CHECKING THERMOSTAT OPERATION	All OK	Problems met	Operation
	Bleed the cooling system. Check that the thermostat is working properly	Continue to Step 6	Thermostat not working	Replace the thermostat Op. 1088C30
6	WATER PUMP CHECK	All OK	Problems met	Operation
	Check that the thermostat is working properly	Continue to Step 7	Pump faulty	Replace the pump Op. 1088C10
7	COOLING SYSTEM LEAKAGE TEST	All OK	Problems met	Operation
	Carry out the cooling system leak testOp. 0510C30	Continue to Step 10	No seal with visible leaks	Eliminate the leaks
	Carry out the cooling system leak testOp. 0510C30	Continue to Step 10	No seal without visible leaks	Continue to Step 8
8	CYLINDER HEAD HYDRAULIC SEAL CHECK	All OK	Problems met	Operation
	Check the hydraulic seal of the cylinder headOp. 1016E04	Continue to Step 9	Seal insufficient	Renew the seal, if necessary replace the head
9	MONOBLOC HYDRAULIC SEAL CHECK	All OK	Problems met	Operation
	Check the hydraulic seal of the block	Continue to Step 10	Seal insufficient	Renew the seal, if necessary replace the engine block
10	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'

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Parts & tools for this job For 2001 Fiat Stilo

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