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Noise, Localizing

Special tools 
GLL165031
 T9814108 CHASSIS EAR 
Tool number:  T9814108
Tool description:  CHASSIS EAR
Tool boards: 

9814108

Read the manual that is supplied with the instrument.

Position the microphone at the location where the noise is suspected to originate. Attach the transmitters securely.

Drive the vehicle, listen to one duct at a time. Note where the noise is most clear.

Move one or more of the microphones to successively encircle the noise.

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