Audio System - Whining/Buzzing Noise From Radio Speakers: Overview
Bulletin No: 09-001/03Last Issued: 01/10/2003
Subject
WHINING/BUZZING NOISE FROM RADIO SPEAKERS
BULLETIN NOTE
This bulletin supersedes 09-15/O1, issued 12/21/01. The APPLICABLE MODEL(S)/VINS and PART(S) INFORMATION have been changed.
APPLICABLE MODEL(S)/VINS
All 1991-94 Navajo
All 1994-02 B-Series (excludes all Flexible Fuel (FFV) B-3000).
2001-2002 Tribute
DESCRIPTION
A whining or buzzing noise can be heard coming from the audio system speakers. This may be caused by an electrical noise coming from the in-tank fuel pump or its ground wire. A Radio Frequency Filter (RFI) is available to correct this concern. Customers having this concern should have their vehicle repaired using the following procedure.
Note:
^ Do not perform the following procedure on FFV B-3000 vehicles, this procedure does not apply To verify if vehicle is FFV, check 8th digit of VIN.
- If 8th digit is V then vehicle is FFV.
- If 8th digit is U then vehicle is not FFV.
^ Fuel pump audio noise is relatively constant and changes only slightly with engine RPMs. If the audio noise constantly changes with the engine RPMs, the fuel pump is not the cause of the problem and the RFI filter will not effectively reduce the noise.
Customers having this concern should have their vehicle repaired using the following procedure.
PART(S) INFORMATION
WARRANTY INFORMATION
Note:
This information applies to verified customer complaints on vehicles covered under normal warranty. Refer to the SRT microfiche for warranty term information.
Disclaimer