Thunderbird V6-232 3.8L SC (1989)
Speaker: Customer Interest
Radio Speakers - Distorted Sound
Article No. 91-18-8
09/05/91
RADIO-SOUND DISTORTION FROM SPEAKERS-JBL SOUND SYSTEMS-VEHICLES BUILT BEFORE 9/1/90
FORD:
1989-91 THUNDERBIRD
LINCOLN-MERCURY: 1989-91 COUGAR, TOWN CAR
LIGHT TRUCK:
1991 EXPLORER
This TSB article is being republished in its entirety to provide vehicle application information in the Parts Block.
ISSUE:
Objectional sound distortion, which sounds like speaker rattle or vibration when the sound system is set at advanced bass and/or high volume,
may be caused by missing foam insulation normally added to the JBL subwoofer speaker during production.
ACTION:
Install new subwoofer speakers which have been redesigned and are now available. These new subwoofer speakers can be identified by a
production date code that began on August 17, 1990 and appears on the speaker enclosure. Refer to the appropriate Car or Truck Shop
Manual for service details.
NOTE:
THE DATE CODE ON THE ENCLOSURE WILL APPEAR AS THE DAY OF THE YEAR (COUNT 1 TO 365), FOLLOWED BY YEAR
OF PRODUCTION, FOLLOWED BY SHIFT.
EXAMPLE FOR DATE CODE 22801:
^
228 - DENOTES THE 228TH DAY OF THE YEAR, (AUGUST 17).
^
0 - DENOTES THE 1990 YEAR OF PRODUCTION.
^
1 OR 0 LAST DIGIT DENOTES SHIFT.
PART NUMBER
PART NAME
CLASS
E9WY-18808-A
Enclosure Subwoofer
B
(Thunderbird / Cougar)
FOVY-18808-D
Enclosure Assembly Radio
C
(Town Car)
F1TZ-18C804-A
Enclosure Amplifier & Bracket
C
Assembly (Explorer 2 Door)
F1TZ-18C804-B
Enclosure Amplifier & Bracket
C
Assembly (Explorer 4 Door)
OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES:
91-8-16
WARRANTY STATUS: Eligible Under Basic Warranty
Coverage
OPERATION
DESCRIPTION
TIME
911808A
Replace Speaker -
0.6 Hr.
Thunderbird/Cougar
911808B
Replace Speaker - Town
0.3 Hr.
Car
911808C
Replace Speaker - Explorer
0.6 Hr.
(Two Door)
911808D
Replace Sreaker - Explorer
0.3 Hr.
(Four Door)
DEALER CODING
BASIC PART NO. CONDITION CODE
18808
56
OASIS CODES:
207000
