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Alfa Romeo GT Factory Service Manual (2003-2010)22 · Fault diagnosis

22 · Diagnostics

Bonnet wind noise

Make: Alfa Romeo
Model: GT Factory Service Manual
Year: 2003–2010
Section: Wind noise › Bonnet wind noise

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Fault diagnosisBonnet wind noise

BONNET WIND NOISE

With the vehicle moving, there is noise coming from the front of the passenger compartment.

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Preliminarily check that the bonnet is properly closed Check that the noise is actually coming from the bonnet lid by carrying out the test for locating the noise	Continue to Step 1	The wind noise comes from the front dooor	Continue according to the instructions in See table See table T01 WIND NOISE FROM THE FRONT DOORS
			The wind noise comes from the windcreen	Continue according to the instructions in See table See table T06 WINDSCREEN WIND NOISE
			The noise is coming from the lower area of the passenger compartment	Continue according to the instructions in See table See table T10 PASSENGER COMPARTMENT WIND NOISE, LOWER AREA / (UNDERBODY)
			The noise is coming from the rear area	Continue according to the instructions in See table See table T25 WIND NOISE FROM THE REAR AREA
1	CHECK LOCATION OF NOISE FROM BONNET LID	All OK	Problems met	Operation
1.9 JTD 16V 2.0 JTS	Carry out the detailed test for locating noise from the bonnet lid See Test See Test 7025A LOCATION OF BONNET WIND NOISE : identify the area where the noise is coming from.	Continue to Step 2	The wind noise persists with the entire bonnet taped	Check for the presence of the plugs and that the cable duct rubber mountings are correctly fitted on the fireproof bulkhead Op. 1072C45
			The noise is coming from the side of the bonnet	Check the foam blocks at the point where the bonnet and wings fit together at the rear. Also check the condition of the wind seals and make sure they are properly fitted, if necessary replace them Op. Op. 7025A62 BONNET LID ANTI-WIND NOISE SEAL - R+R
			The noise is coming from the front of the bonnet	Check the condition of the front sound-proofing seal and that it is correctly fitted (it must adhere perfectly to the cross panel when the bonnet is closed), if necessary, replace it. Op. Op. 7025A62 BONNET LID ANTI-WIND NOISE SEAL - R+R
3.2 V6	Carry out the detailed test for locating noise from the bonnet lid See Test See Test 7025A LOCATION OF BONNET WIND NOISE : identify the area where the noise is coming from.	Continue to Step 2	The noise is coming from the side of the bonnet	Check the foam blocks at the point where the bonnet and wings fit together at the rear. Also check the condition of the wind seals and make sure they are properly fitted, if necessary, replace them Op. Op. 7025A62 BONNET LID ANTI-WIND NOISE SEAL - R+R
3.2 V6		Continue to Step 2	The noise is coming from the front of the bonnet	Check the condition of the front sound-proofing seal and that it is correctly fitted (it must adhere perfectly to the cross panel when the bonnet is closed), if necessary, replace it. Op. Op. 7025A62 BONNET LID ANTI-WIND NOISE SEAL - R+R
2	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis

‹ Prev Wind noise from the front doors Next › Windscreen wind noise

Parts & tools for this job For 2003 Alfa Romeo GT

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