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Makes 🢒 GMC_Truck 🢒 1994 🢒 GMC Suburban - 2WD 🢒 Bulletins 🢒 CAMPAIGN:TRANSMISSION REAR CASE BUSHING

CAMPAIGN:TRANSMISSION REAR CASE BUSHING

SUBJECT: TRANSMISSION FAILURE DUE TO LOSS OF LUBRICATION OIL FLOW - REAR CASE BUSHING MOVING

MODELS: 1994 C/K TRUCKS AND G VANS WITH 4L80-E/4L80-EHD TRANSMISSIONS

IMPORTANT!!! --------- The following recall campaign was sent via DCS/EMS on March 31, 1994.

ATTENTION

!!! --------- ALL NEW VEHICLES IN DEALERS' POSSESSION (SOLD AND UNSOLD) THAT ARE INVOLVED, MUST BE HELD AND REPAIRED PER THIS BULLETIN BEFORE OWNERS TAKE POSSESSION OF THESE VEHICLES.

General Motors has determined that CERTAIN 1994 C/K trucks and G Vans listed in this campaign, equipped with the 4L80-E/4L80-EHD, may experience a transmission failure within a very limited number of miles due to a lack of lubrication from the movement of the rear case bushing.

The rear case bushing bore was machined oversized which allows the rear case bushing to move causing loss of lubrication to the rear section of the transmission.

THE TRANSMISSION ASSEMBLY MUST BE REPLACED FOLLOWING THE TRANSMISSION REPLACEMENT PROCEDURE IN THE APPROPRIATE SERVICE MANUAL.

VEHICLES INVOLVED

Involved are CERTAIN 1994 C/K trucks and G Vans equipped with the 4L80-E/4L80-EHD automatic transmission (MT1) with build dates of 3-17-94 through 3-24-94. Dealer codes and vehicles involved are listed below:

SHIP INVOICE VIN DEALER DEALER --- ------ ------- 1GTGG35K1RF52950 4806007 4806007

1GTHG35K9RF524025 4806079 4806079

1GTGK24K9RE539572 4806083 4806083

1GTHG39Y8RF524175 4806546 4806546

1GDHK34K4RE539601 4806604 4806604

1GTGG35K6RF524110 4810141 4810141

1GTHK33F7RJ743471 4818063 4818063

1GTGG35K4RF523845 4821112 4821112

1GTHC33N3RJ743083 4821734 4821734

1GTHG39Y9RF524184 4826061 4826061

1GDJC34N2RE538133 4839200 4821677

1GDJC34N2RE538472 4839200 4821677

1GDJC34N3RE538125 4839200 4821677

1GDJC34N3RE538495 4839200 4821677

1GDJC34N3RE538691 4839200 4821677

1GDJC34N6RE538474 4839200 4821677

1GDJC34N6RE538491 4839200 4821677

1GDJC34N6RE538684 4839200 4821677

1GDJC34N8RE538122 4839200 4821677

1GDJC34N8RE538492 4839200 4821677

1GDJC34N9RE538484 4839200 4821677

1GDJC34N9RE538677 4839200 4821677

1GDJC34N9RE538694 4839200 4821677

1GDHG31KXRF524021 4839321 4826027

1GDHG31KXRF524116 4839321 4826027

1GDHG31KXRF524150 4839321 4826027

1GDHG31K0RF524187 4839321 4826027

1GDHG31K0RF524304 4839321 4826027

1GDHG31K0RF524335 4839321 4826027

1GDHG31K1RF524246 4839321 4826027

1GDHG31K2RF524028 4839321 4826027

1GDHG31K2RF524093 4839321 4826027

1GDHG31K2RF524286 4839321 4826027

1GDHG31K4RF524015 4839321 4826027

1GDHG31K5RF523956 4839321 4826027

1GDHG31K5RF524279 4839321 4826027

1GDHG31K5RF524301 4839321 4826027

1GDHG31K6RF523965 4839321 4826027

1GDHG31K6RF523996 4839321 4826027

1GDHG31K7RF523960 4839321 4826027

1GDHG31K7RF524011 4839321 4826027

1GDHG31K7RF524090 4839321 4826027

1GDHG31K7RF524140 4839321 4826027

1GDHG31K8RF524129 4839321 4826027

1GDHG31K8RF524132 4839321 4826027

1GDHG31K9RF523992 4839321 4826027

1GTGG35K7RF524231 4839859 4810027

1GKGK26N1RJ743401 4840437 4840437

1GTHC33N5RJ742758 4840480 4840480

1GJGG35K1RF523861 4841099 4840997

1GJHG39NXRF524127 4842027 4842027

1GJHG39NORF524461 4842027 4842027

1GJHG39N4RF524222 4842027 4842027

1GDGC34N7RE539532 4842041 4842041

1GTHG39K4RF523987 4842087 4842087

1GTHC33N7RJ743023 4842222 4842222

1GJGG39K4RF524092 4842276 4842276

1GKGK26K5RJ743570 4844084 4844084

1GTGC29K2RE539256 4844134 4844134

1GKGC26F8RJ743434 4844165 4844165

1GTHC33N8RJ743970 4844196 4844196

1GDHC34K9RE539008 4844202 4844202

1GTHC33N5RJ743103 4847344 4847344

1GTGC33F5RJ743641 4847661 4847661

1GTHC33N7RJ742017 4850124 4850124

1GJGG35K7RF523945 4850235 4850235

1GTGC33K8RJ743713 4850409 4850409

1GDGC33K5RJ743941 4850516 4850516

1GDHG31K2RF523798 4856016 4830278

1GDHG31K4RF523916 4856016 4830278

1GDHG31K5RF523925 4856016 4830278

1GDHG31K7RF523943 4856016 4830278

1GDHG31K7RF524428 4856016 4830278

1GDJC34NORE538695 4864462 4821677

1GDJC34N0RE538700 4864462 4821677

1GDJC34N1RE538477 4864462 4821677

1GDJC34N1RE538494 4864462 4821677

1GDJC34N3RE538674 4864462 4821677

1GDJC34N5RE538479 4864462 4821677

1GDJC34N5RE538692 4864462 4821677

1GDJC34N6RE538121 4864462 4821677

1GDJC34N6RE538135 4864462 4821677

1GDJC34N6RE538880 4864462 4821677

1GDJC34N7RE538127 4864462 4821677

1GDJC34N7RE538676 4864462 4821677

1GDJC34N8RE538685 4864462 4821677

1GDJC34NORE538471 4864535 4821677

1GDJC34N2RE538679 4864535 4821677

1GDJC34N2RE538682 4864535 4821677

1GDJC34N4RE538473 4864535 4821677

1GDJC34N4RE538487 4864535 4821677

1GDJC34N8RE538475 4864535 4821677

1GDJC34N8RE538699 4864535 4821677

1GDJC34N8RE538878 4864535 4821677

1GDJC34NXRE538476 4864694 4821677

1GDJC34NORE538129 4864694 4821677

1GDJC34N1RE538480 4864694 4821677

1GDJC34N5RE538689 4864694 4821677

1GDJC34N6RE538488 4864694 4821677

1GDJC34N6RE538698 4864694 4821677

1GDHG31K2RF524174 4871219 4826027

1GDHG31K3RF524362 4871219 4826027

1GDHG31K6RF524369 4871219 4826027

1GDHG31K7RF524137 4871219 4826027

1GDHG31K7RF524199 4871219 4826027

1GDHG31K7RF524297 4871219 4826027

1GDHG31K8RF524227 4871219 4826027

1GDHG31K9RF523653 4871219 4826027

1GDJC34NXRE538493 4871825 4821677

1GDJC34NXRE538686 4871825 4821677

1GDJC34NORE538485 4871825 4821677

1GDJC34NORE538678 4871825 4821677

1GDJC34N1RE538687 4871825 4821677

1GDJC34N1RE538690 4871825 4821677

1GDJC34N2RE538889 4871825 4821677

1GDJC34N3RE538478 4871825 4821677

1GDJC34N3RE538481 4871825 4821677

1GDJC34N4RE538490 4871825 4821677

1GDJC34N4RE538683 4871825 4821677

1GDJC34N5RE538482 4871825 4821677

1GDJC34N7RE538130 4871825 4821677

1GDJC34N9RE538128 4871825 4821677

1GDJC34N9RE538680 4871825 4821677

1GDJC34N9RE538887 4871825 4821677

DEALER CAMPAIGN RESPONSIBILITY

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. DEALERS ARE TO CORRECT ALL AFFECTED VEHICLES IN NEW VEHICLE STOCK PRIOR TO THEIR SALE.

Should vehicles be sold inadvertently from your new vehicle inventory, prior to repair, owners are to be contacted by the dealer and arrangements made to make the required correction according to the instructions contained in this bulletin.

OWNER NOTIFICATION

There will be no owner letter sent out with this campaign. It is anticipated the vehicles should still be in your new vehicle inventory and should be repaired prior to retail sale. If a unit has been retailed, contact the owner immediately and arrange to correct this condition on his/her vehicle.

SERVICE PROCEDURE

The transmission assembly must be replaced following the transmission replacement procedure in the appropriate service manual.

PARTS INFORMATION

General Motors pre-shipped the appropriate transmission assemblies to the involved dealers the week of April 5, 1994. Dealers will be billed through the normal GMSPO pre-shipped parts process.

Do not order a transmission assembly from General Motors Service Parts Operation (GMSPO). If problems are incurred in receiving a transmission assembly, contact:

Holley Brown GM Powertrain (313) 481-6050

Part Number Description Quantity ------ ----------- -------- 1051855 Transmission Fluid 7-13.5 QTS. 15629093 Gasket, Transfer Case Adaptor 1 8681168 Seal, Transfer Case Adaptor 1 (Required for 4WD Vehicles only.

DEALERS NEED TO ORDER THE ABOVE PARTS AS REQUIRED.

WARRANTY INFORMATION

Use the appropriate operation number listed below:

PARTS LABOR *OTHER **NET DESCR ALLOWANCE OPER. HOURS HOURS AMOUNT ----- --------- ------ ----- ------ ------ Replace Trans NONE V8900 4.2 1 $252 Assembly Truck

Replace Trans NONE V8901 5.5 1 $252 Assembly K Truck w/o Skip plate

Replace Trans NONE V8902 5.8 1 $252 Assembly K Truck with Skip plate

Replace Trans NONE V8903 3.7 1 $252 Assembly G Van

* Campaign Administrative Allowance

** In the interest of customer satisfaction, GMC Truck Division has decided to replace, rather than repair the transmission. The $252 amount identified in the "NET AMOUNT" column above represents 40% of dealer net for the parts (CASE ASSEMBLY KIT) that would be required to repair these transmissions. Please follow the normal return procedures to return the core unit to GMSPO.

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 campaign number and five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or 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.

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.