CAMPAIGN: TRANSAXLE DISTRESS DUE TO DISTORTED CHANNEL. Buick LeSabre 1993

SUBJECT: TRANSAXLE DISTRESS DUE TO DISTORTED CHANNEL PLATE ASSEMBLY (TIGHT END PLAY)

MODELS AFFECTED: 1993 BUICK LESABRES AND REGALS WITH 4T60-E TRANSAXLE (RPO M13) 1993 OLDSMOBILE 98

CONDITION:

GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1993 H-BODY AND W-BODY WITH HYDRAMATIC 4T60-E (RPO M13) TRANSAXLES MAY CONTAIN A DISTORTED CHANNEL PLATE ASSEMBLY. THE SUSPECT CHANNEL PLATE MAY BE BOWED, AFFECTING THE TRANSAXLE "END PLAY." THIS COULD RESULT IN A VARIETY OF SYMPTOMS INCLUDING NOISE, FLUID LEAKS, AND EVENTUALLY LOSS OF FORWARD DRIVE CAPABILITY.

TO PREVENT THESE CONDITIONS FROM OCCURRING, DEALERS ARE TO REPLACE THE TRANSAXLE WITH A NEW TRANSAXLE.

BUICK MODELS INVOLVED:

INVOLVED ARE CERTAIN 1993 BUICK LESABRE AND REGAL MODEL VEHICLES BUILT WITHIN THE FOLLOWING RANGES:

YEAR PLANT MODEL FROM THROUGH

1993 BUICK CITY LESABRE PH542058 PH545936 1993 OSHAWA REGAL P1492463 P1493567

NOTICE: ONLY CERTAIN VEHICLES WITHIN THESE RANGES ARE AFFECTED. PLEASE CHECK YOUR DEALER CAMPAIGN LISTING OR VISS TO DETERMINE CAMPAIGN STATUS ON VEHICLE.

OLDSMOBILE NDVEHICLES INVOLVED:

INVOLVED ARE THE FOLLOWING 1993 OLDSMOBILE EIGHTY EIGHT VEHICLES:

DEALER DEALER VIN CODE(N) VIN CODE(N) 1G3HN53L4PH349682 23687 1G3HN53L7PH349725 23992 1G3HN53L6PH350820 12693 1G3HN53L4PH349617 23561 1G3HN53L6PH351062 13762 1G3HN53L4PH350721 21162 1G3HN53LXPH350724 01997 1G3HN53L8PH350723 07981 1G3HN53L1PH349431 07393 1G3HN53L9PH349659 23931 1G3HY53LOPH349685 82050 1G3HN53LXPH350819 01481 1G3HN53LOPH350716 18736 1G3HN53L8PH349779 13017 1G3HN53L2PH349521 02664 1G3HN53L8PH349684 23372 1G3HN53L6PH349683 24887 1G3HN53L5PH349786 19214 1G3HN53L3PH349785 24993 1G3HN53L3PH349804 24090 1G3HN53L9PH349743 16589 1G3HN53L3PH349723 24859 1G3HN53L6PH349442 03837 1G3HN53L8PH349748 23931 1G3HN53L5PH349724 23931 1G3HN53L8PH349717 21353 1G3HN53L2PH349728 23992 1G3HN53L1PH349719 21066 1G3HY53L6PH349738 82235 1G3HN53L7PH349742 23866 1G3HN53L2PH349745 23931 1G3HN53L3PH350872 15510 1G3HN53L2PH349762 21447 1G3HN53L5PH349772 13613 1G3HN53L6PH349764 21066 1G3HN53L7PH349756 21168 1G3HN53L4PH349603 23992 1G3HN53L6PH350879 01106 1G3HN53L0PH349680 21633 1G3HN53L4PH349777 19790 1G3HY53L0PH349783 18795 1G3HN53L8PH349782 24064 1G3HY53LXPH349774 19065 1G3HN53L6PH349750 06994 1G3HN53L6PH349781 13372 1G3HN53L5PH349707 19814 1G3HN53L7PH349773 13166 1G3HN53L1PH349705 23376 1G3HN53L7PH349787 24257 1G3HN53L4PH349715 23931 1G3HN53L6PH349702 23032 1G3HN53L6PH349697 16326 1G3HN53L8PH349720 23032 1G3HN53LOPH349677 10455 1G3HN53LOPH350988 23992 1G3HN53L3PH350743 12126 1G3HN53L7PH350633 03994 1G3HN53L7PH350678 01424 1G3HN53L3PH350631 03994 1G3HN53LOPH351140 09615 1G3HN53L8PH349703 24477 1G3HN53L2PH349647 23831 1G3HN53L8PH350995 07981 1G3HN53L4PH351089 24993 1G3HN53L8PH351080 06448 1G3HN53L3PH349639 24779 1G3HN53L1PH349655 23992 1G3HN53L8PH349636 23931 1G3HN53L6PH349635 23931 1G3HN53LXPH349640 23931 1G3HN53LXPH349637 19190 1G3HN53L9PH349578 23931 1G3HN53L3PH349771 13372 1G3HN53L5PH349674 24831 1G3HN53L1PH349641 09739 1G3HN53L7PH349661 15700 1G3HN53LXPH349671 23264 1G3HY53LXPH349564 02654 1G3HY53L3PH349857 21163 1G3HY53L7PH349778 10869 1G3HN53L2PH349793 07281 1G3HN53L2PH349809 24534 1G3HN53L3PH350869 01997 1G3HN53L0PH350876 02967 1G3HN53L2PH350717 12200 1G3HN53L8PH350818 06994 1G3HN53LXPH350674 01997 1G3HN53L2PH350815 21939 1G3HN53L6PH350624 03994 1G3HY53L5PH350816 16020

INVOLVED VEHICLES HAVE BEEN IDENTIFIED BY VEHICLE IDENTIFICATION NUMBER COMPUTER LISTINGS. COMPUTER LISTINGS CONTAIN THE COMPLETE VEHICLE IDENTIFICATION NUMBER, OWNER NAME AND ADDRESS DATA, AND ARE FURNISHED TO INVOLVED DEALERS WITH THE CAMPAIGN BULLETIN. OWNER NAME AND ADDRESS DATA FURNISHED WILL ENABLE DEALERS TO FOLLOW-UP WITH OWNERS INVOLVED IN THIS CAMPAIGN. THESE LISTINGS MAY CONTAIN OWNER NAMES AND ADDRESSES OBTAINED FROM STATE MOTOR VEHICLE REGISTRATION RECORDS. THE USE OF SUCH MOTOR VEHICLE REGISTRATION DATA FOR ANY OTHER PURPOSE IS A VIOLATION OF LAW IN SEVERAL STATES. ACCORDINGLY, YOU ARE URGED TO LIMIT THE USE OF THIS LISTING TO THE FOLLOW-UP NECESSARY TO COMPLETE THIS CAMPAIGN. ANY DEALER NOT RECEIVING A COMPUTER LISTING WITH THE CAMPAIGN BULLETIN HAS NO INVOLVED VEHICLES CURRENTLY ASSIGNED.

OWNER NOTIFICATION:

OWNERS WILL BE NOTIFIED OF THIS CAMPAIGN ON THEIR VEHICLES BY BUICK MOTOR DIVISION (SEE COPY OF OWNER LETTER INCLUDED WITH THIS BULLETIN).

DEALER CAMPAIGN RESPONSIBILITY:

ALL UNSOLD NEW VEHICLES IN DEALERS' POSSESSION AND SUBJECT TO THE CAMPAIGN MUST BE HELD AND REPAIRED PER THE SERVICE PROCEDURE OF THIS CAMPAIGN BULLETIN BEFORE OWNERS TAKE POSSESSION OF THESE VEHICLES.

DEALERS ARE TO SERVICE ALL VEHICLES SUBJECT TO THIS CAMPAIGN AT NO CHARGE TO OWNERS, REGARDLESS OF MILEAGE, AGE OF VEHICLE, OR OWNERSHIP, FROM THIS TIME FORWARD.

OWNERS OF VEHICLES RECENTLY SOLD FROM YOUR NEW VEHICLE INVENTORY WITH NO OWNER INFORMATION INDICATED ON THE DEALER LISTING ARE TO BE CONTACTED BY THE DEALER, AND ARRANGEMENTS MADE TO MAKE THE REQUIRED CORRECTION ACCORDING TO THE INSTRUCTIONS CONTAINED IN THIS BULLETIN. THIS COULD BE DONE BY MAILING TO SUCH OWNERS A COPY OF THE OWNER LETTER ACCOMPANYING THIS BULLETIN. CAMPAIGN FOLLOW-UP CARDS SHOULD NOT BE USED FOR THIS PURPOSE, SINCE THE OWNER MAY NOT AS YET HAVE RECEIVED THE NOTIFICATION LETTER.

IN SUMMARY, WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN ENTERS YOUR VEHICLE INVENTORY, OR IS IN YOUR DEALERSHIP FOR SERVICE IN THE FUTURE, PLEASE TAKE THE STEPS NECESSARY TO BE SURE THE CAMPAIGN CORRECTION HAS BEEN MADE BEFORE SELLING OR RELEASING THE VEHICLE.

PARTS INFORMATION:

PARTS REQUIRED TO COMPLETE THIS CAMPAIGN ARE TO BE OBTAINED FROM GENERAL MOTORS SERVICE PARTS OPERATIONS (GMSPO). THESE PARTS MUST BE ORDERED ON A "V.I.P." ORDER. V.I.P. CHARGES WILL BE WAIVED BY GMSPO.

IMPORTANT: VEHICLE "VIN" MUST BE INCLUDED ON THE V.I.P. ORDER.

CARLINE/ TRANSAXLE FINAL DRIVE QUANTITY/ PART NUMBER DESCRIPTION MODEL RATIO VEHICLE

24200737 TRANSAXLE ASSEMBLY 3YMW LESABRE/2.84 1 AS REQUIRED OR 24200735 TRANSAXLE ASSEMBLY 3CMW REGAL W/3.1L 1 AS REQUIRED ENGINE/3.33 OR 24200736 TRANSAXLE ASSEMBLY 3WAW REGAL W/3800 1 AS REQUIRED ENGINE/3.06

12345881 ONE (1) QUART 6L (6.34 QT.) CONTAINER, DEXTRON II-E (APPROX. CAPACITY)

SERVICE PROCEDURE:

1. REPLACE THE TRANSAXLE ASSEMBLY. SEE APPROPRIATE 1993 SERVICE MANUAL, SECTION 7A FOR TRANSAXLE REPLACEMENT PROCEDURE.

2. REMOVED TRANSAXLE ASSEMBLY MUST BE CRATED IN THE ORIGINAL SHIPPING CONTAINER AND RETURNED IN THE USUAL MANNER WITH APPROPRIATE INFORMATION INCLUDED.

3. INSTALL CAMPAIGN IDENTIFICATION LABEL.

CAMPAIGN IDENTIFICATION LABEL:

EACH VEHICLE CORRECTED IN ACCORDANCE WITH THE INSTRUCTIONS OUTLINED IN THIS PRODUCT CAMPAIGN BULLETIN WILL REQUIRE A "CAMPAIGN IDENTIFICATION LABEL." EACH LABEL PROVIDES A SPACE TO INCLUDE THE FIVE (5) DIGIT DEALER CODE OF THE DEALER PERFORMING THE CAMPAIGN SERVICE. THIS INFORMATION MAY BE INSERTED WITH A TYPEWRITER OR A BALL POINT PEN.

EACH "CAMPAIGN IDENTIFICATION LABEL" IS TO BE LOCATED ON THE RADIATOR CORE SUPPORT IN AN AREA WHICH WILL BE VISIBLE WHEN THE VEHICLE IS BROUGHT IN FOR PERIODIC SERVICING BY THE OWNER.

APPLY "CAMPAIGN IDENTIFICATION LABEL" ONLY ON A CLEAN, DRY SURFACE.

WARRANTY CLAIM INFORMATION:

PART FAILED PART FAILURE LABOR LABOR OTHER OPER COUNT PART NO ALLOW CODE OP NO HRS HRS

O REPLACE TRANSAXLE ASSEMBLY 24200737 4.8 LESABRE # 24200735 ** 96 V8170 5.7 REGAL * 0.1 OR 24200736 ADD FOR LOCKING WHEEL COVERS 0.1

* CAMPAIGN ADMINISTRATIVE ALLOWANCE

** THE "PARTS ALLOWANCE" SHOULD BE THE SUM TOTAL OF THE CURRENT GMSPO DEALER NET PRICE PLUS 30%.

# USE ACTUAL PART COUNT FOR 1 TRANSAXLE PLUS FLUID REQUIRED.

DEAR BUICK OWNER:

WE, AT BUICK MOTOR DIVISION, ARE COMMITTED TO IMPROVING THE BUICK CUSTOMER OWNERSHIP EXPERIENCE. WE HAVE DISCOVERED A CONDITION THAT COULD EXIST ON CERTAIN 1993 BUICK LESABRE AND REGAL MODEL VEHICLES. WE ARE WRITING TO YOU TODAY WITH OUR ACTION TO RESOLVE THIS CONDITION BEFORE IT MIGHT OCCUR ON YOUR VEHICLE.

CUSTOMER SATISFACTION RECALL FOR:

CERTAIN 1993 BUICK LESABRE AND REGAL MODELS WITH HYDRAMATIC 4T60-E TRANSAXLES MAY CONTAIN A DISTORTED CHANNEL PLATE ASSEMBLY. THE SUSPECT CHANNEL PLATE MAY BE BOWED, AFFECTING THE TRANSAXLE "END PLAY." THIS COULD RESULT IN A VARIETY OF SYMPTOMS INCLUDING NOISE, FLUID LEAKS, AND EVENTUALLY LOSS OF FORWARD DRIVE CAPABILITY.

ACTION:

TO PREVENT THESE CONDITIONS FROM OCCURRING, DEALERS ARE TO REPLACE THE TRANSAXLE WITH A NEW TRANSAXLE AT NO CHARGE TO YOU.

CONTACTING YOUR DEALER:

PLEASE CONTACT YOUR BUICK DEALER AS SOON AS POSSIBLE TO ARRANGE A SERVICE DATE. INSTRUCTIONS FOR MAKING THIS CORRECTION HAVE BEEN SENT TO YOUR DEALER AND PARTS ARE CURRENTLY AVAILABLE. PLEASE ASK YOUR DEALER IF YOU WISH TO KNOW HOW MUCH TIME WILL BE NEEDED TO SCHEDULE AND PROCESS YOUR VEHICLE.

OWNER REPLY CARD:

THE ENCLOSED OWNER REPLY CARD IDENTIFIES YOUR VEHICLE. PRESENTATION OF THIS CARD TO YOUR DEALER WILL ASSIST IN MAKING THE NECESSARY CORRECTION IN THE SHORTEST POSSIBLE TIME. IF YOU HAVE SOLD OR TRADED YOUR VEHICLE, PLEASE LET US KNOW BY COMPLETING THE POSTAGE PAID REPLY CARD AND RETURNING IT TO US.

WE ARE SORRY TO CAUSE YOU THIS INCONVENIENCE; HOWEVER, WE HAVE TAKEN THIS ACTION IN THE INTEREST OF YOUR CONTINUED SATISFACTION WITH OUR PRODUCTS.

BUICK MOTOR DIVISION GENERAL MOTORS CORPORATION

ENCLOSURE

93-C-6

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.