22 · Diagnostics

The engine has cut out

Make: Alfa Romeo
Model: GT Factory Service Manual
Year: 2003–2010
Section: Gear shift › The engine has cut out

‹ Prev The engine revs increase whilst changing gear Next › Gear flashing on the display

Fault diagnosisThe engine has cut out

THE ENGINE HAS CUT OUT

1.8 T.SPARK, 2.0 JTS

Whilst the vehicle is stopping

Whilst the vehicle is setting off

With vehicle stationary

0	OIL LEVEL CHECK	All OK	Problems met	Operation
		Results of the tests
	Check the oil level as described in See Test See Test 2127B OIL LEVEL CHECK	Continue to Step 2	Level below the Max reference	Top up the oil level Continue to Step 1
		Continue to Step 2	Level above the Max reference	Reduce to the Max level Continue to Step 2
1	CHECK FOR OIL LEAKS	All OK	Problems met	Operation
	Check that there are no oil leaks as described in See Test See Test 2127C HYDRAULIC GEAR SELECTION SYSTEM	Continue to Step 2	Oil leaks detected	Replace/repair the parts concerned, and top up the oil level Continue to Step 1
2	OIL PRESSURE CHECK	All OK	Problems met	Operation
	Check the oil pressure as described in See Test See Test 2127D OIL PRESSURE CHECK	Continue to Step 4	Pressure < 40 bar	Continue to Step 3
3	ELECTRIC PUMP OPERATION CHECK	All OK	Problems met	Operation
	Check the correct operation of the pump as described in See Test See Test 2127E ELECTRIC SPEED SELECTION SYSTEM	Continue to Step 4	Voltage below 11 V	Check the battery Continue to Step 3
		Continue to Step 4	It is not possible to make gear changes from the lever	Activate the ''clutch bleed'' service from the Examiner Plus or Smart to activate the pump Continue to Step 4
4	CONTROL UNIT ERRORS CHECK	All OK	Problems met	Operation
	Check that there are no control unit errors. In particular: Clutch sensor error Clutch solenoid current error Load relay error Odd gear engagement (short circuit to Vbatt) Even gear engagement (short circuit to Vbatt) In the presence of these errors, for safety reasons (at speeds below 5 km/h) the Robotized Gearbox control unit could request the injection control unit to switch off the engine; it is therefore advisable to carry out an engine management fault diagnosis.	Continue to Step 9	Presence of one or more of the errors included in the list	Continue to Step 5
5	CHECKS ON FAULTS DETECTED	All OK	Problems met	Operation
	Check the faults in accordance with See Test See Test 2127I What to do for error in Selespeed control unit	Continue to Step 7	Faulty connections	Repair/replace the wiring Continue to Step 7
			The active diganosis is not successful and there are no faults detected at the wiring (Clutch solenoid valve and/or Even or odd gear engagement)	Continue to Step 6
			Battery run down (Load relay error)	Restore the correct battery charge Op. 5530C14 Continue to Step 5
6	AFTER THE SOLENOID VALVE ACTIVE DIAGNOSIS	All OK	Problems met	Operation
	If this step has been reached for the active diagnosis of the clutch solenoid valve, replace it Op. 2127C56 and check its operation by carrying out a C.M. If this step has been reached for the active diagnosis of the engagement solenoid valve, replace it Op. 2127C52 and check its operation	Continue to Step 7
7	POTENTIOMETER REPLACEMENT	All OK	Problems met	Operation
	If there is a clutch sensor error and no faults are detected at the connections/wiring, replace the clutch potentiometer Op. 2127E44 and check that the position reading is correct by carrying out a series of C.M.	Continue to Step 8
8	AFTER THE CHECKS ON THE FAULTS DETECTED	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	The fault persists	Continue to Step 9
9	CHECK THAT THE CLUTCH IS NOT DRAGGING	All OK	Problems met	Operation
	Check that the clutch is not dragging following See Test See Test 2127K CLUTCH DRIVE CHECK	Continue to Step 10	The clutch drags	Proceed with checking the clutch/flywheel kit and, if necessary, replace any components that do not conform.
10	CHECK THAT THERE ARE NO ERRORS ON OTHER SYSTEMS	All OK	Problems met	Operation
	Check that there are no errors or any problems in other vehicle systems	Continue to Step 11	There are faults detected	Continue in accordance with the instructions for the diagnostic equipment
11	THE FAULT PERSISTS	All OK	Problems met	Operation
	Contact Technical Service for further information on the problem	End of diagnosis

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Parts & tools for this job For 2003 Alfa Romeo GT

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