The engine revs increase whilst changing gear

Make: Alfa Romeo
Model: GT Factory Service Manual
Year: 2003–2010
Section: Gear shift › The engine revs increase whilst changing gear

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Fault diagnosisThe engine revs increase whilst changing gear

THE ENGINE REVS INCREASE WHILST CHANGING GEAR

1.8 T.SPARK, 2.0 JTS

The problem disappears if I release the accelerator pedal when changing

The clutch appears to be slipping and there is a smell of burning every so often

0	CONTROL UNIT ERRORS CHECK	All OK	Problems met	Operation
		Results of the tests
	Check that there are no control unit errors. In particular: CAN message transmission error CAN message reception error	Continue to Step 3	Presence of one or more of the errors included in the list	Continue to Step 1
1	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	End of diagnosis	Faulty connections	Repair/replace the wiring Continue to Step 2
		End of diagnosis	One of the control units does not dialogue	Repair/replace the control unit concerned Continue to Step 2
2	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 3
3	CLUTCH PUSH ROD ADJUSTMENT CHECK	All OK	Problems met	Operation
	Carry out the clutch push rod check as described in See Test See Test 2127M CLUTCH PUSH ROD ADJUSTMENT CHECK	Continue to Step 4	The position is outside the permitted range	Restore the correct position Tighten to torque
4	CARRY OUT CLUTCH PARAMETER CALIBRATION USING THE EXAMINER	All OK	Problems met	Operation
	In active diagnosis carry out the calibration of the clutch parameters through the ''clutch self-calibration enablement'' and ''calculation of the clutch degradation index''	Continue to Step 5
5	CHECK WITH ROAD TEST	All OK	Problems met	Operation
	Carry out a road test making sure to carry out as many gear changes as possible with all the available gears (under different engine rpm and load conditions). Check that the fault has disappeared	End of diagnosis	The fault persists	Continue to Step 6
6	CLUTCH PLATE CHECK	All OK	Problems met	Operation
	Check the clutch disc: it must conform and must not be worn	Continue to Step 7	The clutch disc is worn/does not conform	Replace the clutch plate Op. Op. 1810A24 CLUTCH - R + R WITH GEARBOX REMOVED
7	VEHICLE OPERATIONAL CHECK	All OK	Problems met	Operation
	Carry out another road test and check that the fault has disappeared	End of diagnosis	The fault persists	Contact Technical Service for further information on the problem

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Parts & tools for this job For 2003 Alfa Romeo GT

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