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Lancia Ypsilon Factory Service Manual (2003-2011)22 · Fault diagnosis
22 · Diagnostics

Bonnet wind noise

Make
Lancia
Model
Ypsilon Factory Service Manual
Year
2003–2011
Section
Wind noise › Bonnet wind noise
Fault diagnosisBonnet wind noise

BONNET WIND NOISE

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

Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation

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 1The wind noise comes from the front dooorContinue according to the instructions in See table T01 WIND NOISE FROM THE FRONT DOORS
The wind noise comes from the windcreenContinue according to the instructions in See table T06 WINDSCREEN WIND NOISE
The noise is coming from the lower area of the passenger compartmentContinue according to the instructions in See table T10 PASSENGER COMPARTMENT WIND NOISE, LOWER AREA
The wind noise comes from the sun roofContinue according to the instructions in See table T20 WIND NOISE FROM THE SUN ROOF
The noise is coming from the rear areaContinue according to the instructions in See table T25 WIND NOISE FROM THE REAR AREA
1CHECK LOCATION OF NOISE FROM BONNET LIDAll OKProblems metOperation
Carry out the detailed test for locating noise from the bonnet lid ( See Test 7025A Location of bonnet wind noise) and identify the area where the noise is coming from.Continue to Step 2The 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.

Check the condition of the wind seal and make sure it is properly fitted ( Op. 7025A62)

The noise is coming from the front of the bonnetCheck the condition of the front seal and make sure it is properly fitted ( Op. 7025A62)
2FLAME DAMPER CHECKAll OKProblems metOperation

Check the flame damper partition. In particular, ascertain:

  • The plugs are fitted;
  • The plugs are correctly fitted;
  • the rubber cable covers are fitted correctly
  • the sealing is efficient
  • correct fitting
Continue to Step 3Flame damper partition faultyRenew the flame damper partition
3CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persists

Parts & tools for this job For 2003 Lancia Ypsilon

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