Thunderbird V8-302 5.0L HO (1992)
Axle Beam Bushing: All Technical Service Bulletins
Rear Axle - Moan or Slow Beating Noise At 55 MPH
Article No.
93-3-12
February 3, 1993
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NOISE - "MOAN" OR "SLOW BEATING" NOISE FROM AXLE
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AXLE - "MOAN" OR "SLOW BEATING" NOISE WHILE DRIVING 55 M.P.H. (88 KM/H) OR OVER
FORD: 1989-92 THUNDERBIRD
LINCOLN-MERCURY: 1989-92 COUGAR
ISSUE:
A "moan" or "slow beating" noise may be heard near the axle, while driving 55 m.p.h. (88 KM/H) or over, due to the axle ring and pinion gears. This
condition can occur with the transmission in either Drive (D) or Overdrive (OD).
ACTION:
Use the following service procedure to check and, if necessary, replace the axle isolator bushings.
SERVICE PROCEDURE
1.
Test drive the vehicle. At a speed of 55 m.p.h. (88 KM/H) or over, shift the transmission from Overdrive (OD) to Drive (D).
2.
If the "moan" or "slow beating" noise is still heard, replace the axle isolator bushings (F3SZ-4B424-A or F3SZ-4B431-B). Refer to the 1992
Thunderbird/Cougar Service Manual, Section 02-01, for removal and installation procedures.
NOTE:
THE DESIGN OF THE NEW AXLE ISOLATOR BUSHINGS MOAN ELIMINATE OR REDUCE THE "MOAN" NOISE, BUT IT WILL NOT
CHANGE OR REDUCE VIBRATIONS CAUSED BY THE DRIVESHAFT OR TIRES.
PART NUMBER
PART NAME
CLASS
F3SZ-4B424-A
Upper Axle Isolator Bushing (2
C
Required)
F3SZ-4B431-B
Lower Axle Isolator Bushing (2
C
Required)
WARRANTY STATUS:
Eligible Under Basic Warranty Coverage For 1991 And Prior Models. Eligible Under Bumper To Bumper Coverage For 1992 Models.
OPERATION DESCRIPTION
TIME
930312A
Replace Rear Axle Insulator
1.5 Hrs.
Bushings
DEALER CODING
BASIC PART NO.
CONDITION CODE
4209
56
OASIS CODES:
509000, 597997, 702000, 702300