A/T - AODE/4R70W Shudder/Vibration Over 35 mph: Overview
Article No.98-8-7
04/27/98
^ VIBRATION - SHUDDER OR VIBRATION UNDER
LIGHT TO MODERATE ACCELERATION ABOVE 56 KM/H
(35 MPH) WHILE IN 3RD OR 4TH GEAR -
VEHICLES EQUIPPED WITH AODE OR 4R70W
TRANSMISSION
^ TRANSMISSION - AODE - 4R70W - SHUDDER OR
VIBRATION UNDER LIGHT TO MODERATE
ACCELERATION ABOVE 56 KM/H (35 MPH) WHILE
IN 3RD OR 4TH GEAR
FORD:
1992-97 CROWN VICTORIA
1994-97 MUSTANG, THUNDERBIRD
LINCOLN-MERCURY:
1992-97 GRAND MARQUIS, TOWN CAR
1993-97 MARK VIII
1994-97 COUGAR
This TSB article is being republished in its entirety to add models and applicable service parts.
CALIBRATION
6-16F-R10, 6-16T-R10, 6-18F-R12, 6-18H-R12, 6-18I-R10, 6-18M-R12, 6-18N-R12, 6-18B-R11, 6-18J-R11, 6-18E-R11, 6-18P-R11, 6-180-R11, 6-18S-R11, 7-18B-R10, 7-18F-R10, 7-18H-R10, 7-18M-R10, 7-18N-R10, 7-18J-R10, 7-18E-R10, 7-18P-R10, 7-180-R10, 7-18S-R10, 7-181-R11
WARNING
THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE(S). PERFORMING THIS MODIFICATION ON OTHER ENGINE CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.
All prior calibration revision levels to the calibrations listed above are also included in this TSB.
ISSUE
Vehicles equipped with an AODE or 4R7OW transmission (refer to Vehicle Application Chart) may experience a torque converter clutch shudder or vibration. This occurs under light to moderate acceleration above 56 km/h (35 mph) while in 3rd or 4th gear or on 3-4/4-3 shifts. This may be due to temperature related automatic transmission fluid breakdown.
ACTION
Perform normal diagnostics and refer to the following Service Procedure for required service.
NOTE
IF QUESTIONS STILL ARISE AFTER REVIEWING THIS TSB ARTICLE, CALL THE LIVONIA TRANSMISSION HOTLINE AT (800) 821-5046. PLEASE HAVE THE VEHICLE IDENTIFICATION NUMBER (VIN), BUILD DATE, MILEAGE, AND PAST HISTORY AVAILABLE. HOTLINE HOURS ARE: 7:00AM TO 7:30PM EST.
Parts Block
OTHER APPLICABLE ARTICLES: 95-23-4, 96-25-17, 97-10-6, 97-5-11
SUPERSEDES: 98-4-10
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION DESCRIPTION TIME
980807A Drain And Refill 1.2 Hrs.
Transmission, Torque
Converter, Cooler And
Lines, Road Test
980807B Additional Time To Clean, 0.1 Hr.
Inspect, And Reuse Pan
Gasket
980807C Additional Time To 0.2 Hr.
Reprogram Powertrain
Control Module (PCM) -
1996-97 Crown
Victoria/Grand Marquis,
Town Car,
Thunderbird/Cougar
980807D Additional Time To Install 1.3 Hrs.
Transmission Fluid Cooler
- 1995-97 Crown Victoria,
Grand Marquis (Base
Only)
980807E Additional Time To Install 0.5 Hr.
Transmission Fluid Cooler
1992-94 Crown Victoria,
Grand Marquis (Base,
Police, And Trailer Tow)
980807G Additional Time To Install 1.4 Hrs.
Transmission Fluid Cooler
- 1995-97 Town Car
(Without Trailer Tow)
980807I Additional Time To Install 0.8 Hr.
Transmission Fluid Cooler
- 1992-94 Town Car
(Without Trailer Tow)
980807J Additional Time To Install 1.2 Hrs.
Transmission Fluid Cooler
- 1993-96 Mark VIII
980807K Additional Time To Install 0.8 Hr.
Transmission Fluid Cooler
- 1994-97 Mustang
980807L Additional Time To Install 0.9 Hr.
Transmission Fluid Cooler
- 1994-97
Thunderbird/Cougar
980807M Additional Time To Install 0.6 Hr.
Transmission Fluid Cooler
- 1995-97 Town Car (With
Trailer Tow)
980807N Additional Time To Install 0.5 Hr.
Transmission Fluid Cooler
- 1995-97 Crown
Victoria/Grand Marquis
(Police, Trailer Tow)
980807O Additional Time To Install 1.0 Hr.
Transmission Fluid Cooler -
1997 Mark VIII
DEALER CODING
CONDITION
BASIC PART NO. CODE
7902 42
OASIS CODES: 501000, 502000, 504000, 610000, 703000, 703200, 703300