High Pitched Gear Whine While Driving

Article No.
00-12-1

Date:
6/12/00

^ NOISE - HIGH PITCHED GEAR "WHINE" HEARD WHILE DRIVING AND/OR COASTING AT LOW SPEEDS IN FIRST OR SECOND GEAR - VEHICLES EQUIPPED WITH 5R55N TRANSMISSION AND BUILT 3/15/1999 THROUGH 4/17/2000

^ TRANSMISSION - 5R55N - HIGH PITCHED GEAR "WHINE" HEARD WHILE DRIVING AND/OR COASTING AT LOW SPEEDS IN FIRST OR SECOND GEAR - VEHICLES BUILT 3/15/1999 THROUGH 4/17/2000

LINCOLN: 2000 LS

ISSUE

A high pitched gear "whine" while driving and/or coasting at low speeds in first or second gear may occur on some vehicles. This noise is caused by the mesh of the planetary gearset.

ACTION

Follow normal diagnostic procedures. If diagnosis shows that the components listed in the Noise/Vibration Routine are good, replace the forward planetary gearset and attaching components. Check Powertrain Control Module (PCM) calibration for latest level. Refer to the following Service Procedure for details.

SERVICE PROCEDURE

CAUTION: ALL COMPONENTS FOUND IN THE SERVICE KIT MUST BE USED. FAILURE TO USE ALL KIT COMPONENTS AND REPROGRAM THE PCM (IF REQUIRED) MAY NOT ELIMINATE THE GEAR NOISE CONCERN, GENERATING A REPEAT REPAIR.

1. Follow normal diagnostic procedures as found in the current CD-ROM or Workshop Manual under Diagnosis by Symptom - Noise/Vibration. If diagnosis shows that the components listed in the Noise/Vibration Routine are good, follow the current published procedures for disassembly and reassembly and replace the forward planetary gearset and attaching components using new Service Kit YW4Z-7A398-SA.

2. Make sure that the vehicle has the latest PCM calibration level. If the vehicle does not have the latest calibration, reprogram the PCM.

PART INFORMATION

PART NUMBER PART NAME
YW4Z-7A398-SA Planetary Gearset Kit

WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage





OPERATION, DESCRIPTION, TIME TABLE

DEALER CODING
CONDITION
BASIC PART NO. CODE
7A398 12

OASIS CODES: 597997,702000,702200, 703200