CAMPAIGN:TRANSMISSION FLUID LEAK DUE TO IMPROPER CASE WALL
THIS BULLETIN CANCELS AND REPLACES BULLETIN 5DO7 ISSUED APRIL 1995.
THE SERVICE PROCEDURE HAS BEEN REVISED TO CLARIFY THE IDENTIFICATION OF TRANSMISSION ASSEMBLIES THAT REQUIRE REPLACEMENT AND THE PARTS SECTION, PART NUMBERS 24201763 AND 24201764 HAVE BEEN REVISED.
ALL COPIES OF 5DO7 SHOULD BE DESTROYED.
Models: 1995 Chevrolet and GMC C/K & P Trucks, and G-Vans
TO: ALL GENERAL MOTORS DEALERS
General Motors of Canada Limited has determined that a defect which relates to motor vehicle safety exists in certain 1995 Chevrolet and GMC C/K & P Trucks, and G-Vans equipped with the Hydra-Matic 4L80-E automatic transmission (MT1). Some of these vehicles may experience an external transmission fluid leak at the lube feed passage due to thin case casting in the cooler boss area. This condition could allow transmission oil to spray onto the exhaust system which could result in a vehicle fire.
To prevent this condition from occurring, dealers are to inspect the transmission case assembly for the involved case casting. If the transmission assembly is involved, then the transmission will be replaced.
VEHICLES INVOLVED:
Involved are certain 1995 Chevrolet and GMC C/K & P Trucks, and G-Vans equipped with the Hydra-Matic 4L80-E automatic transmission (MTI) and built within the following VIN breakpoints:
Year Model Plant Plant Code From Through
1995 Chev C/K Pontiac East E SE126863 SE150825 1995 GMC C/K Pontiac East E SE509028 SE513138
1995 Chev C3500 HD Janesville J SJ105956 SJ107386 1995 GMC C3500 HD Janesville J SJ506942 SJ511985
1995 Chev C/K Janesville J SJ310007 SJ338543 1995 GMC C/K Janesville J SJ704498 SJ719762
1995 Chev C/K Oshawa 1 S1149308 S1159171 1995 GMC C/K Oshawa 1 S1522506 S1524880
1995 Chev G-Van Flint F SF128289 SF155482 1995 GMC G-Van Flint F SF515428 SF522360
1995 Chev P Truck Detroit 3 S3309301 S3311884 1995 GMC P Truck Detroit 3 S3501150 S3501674
NOTE: PLEASE CHECK DCS SCREEN 45 OR YOUR V.I.N. LISTING BEFORE PERFORMING CAMPAIGN TO ENSURE THAT THE VEHICLE IS AFFECTED. ONLY AFFECTED VIN'S WILL BE PAID.
All affected vehicles have been identified by the VIN listing provided to involved dealers with this bulletin. Any dealer not receiving a listing was not shipped any of the affected vehicles.
DEALER CAMPAIGN RESPONSIBILITY:
All unsold new vehicles in dealer's possession and subject to this campaign must be held and inspected/repaired per the Service Procedure of this Campaign Bulletin before owners take possession of these vehicles.
Dealers are to perform this campaign on all involved vehicles at no charge to owners, regardless of kilometres traveled, 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 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 is taken into your new or used 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.
CAMPAIGN PROCEDURE:
Refer to Section 4 of the Service Policies and Procedures Manual for the detailed procedure on handling Product Campaigns. Dealers are requested to complete the campaign on all transfers as soon as possible.
OWNER NOTIFICATION:
All owners of record at the time of campaign release are shown on the attached computer listing and have been notified by first class mail from General Motors (see copy of owner letter included with this bulletin). The listings provided are for campaign activity only and should not be used for any other purpose.
PARTS INFORMATION:
Parts required to complete this campaign should be ordered through regular channels, as follows:
TRANSMISSION INFORMATION
IMPORTANT:
Transmission cores must be returned to GMSPO as the new transmission is installed. The original transmission assembly must be placed in the replacement transmission container and returned through the customary GMSPO process.
Vehicle/Model 14L80E Model Engine Disp./RPO Transmission Part Number
P Truck 5ABP 4.3L/LB4 24201746 G-Van 5ADP 4.3LALB4 24201748 G-Van 5ALP 6.5LAL57 24201752 C Truck 5BAP 5.7L/L05 24201753 K Truck 5BJP 5.7L/L05 24201754 P Truck 5BMP 5.7L/L05 24201755 C Truck 5CSP 5.7L/L05 24201758 C Truck 5CTP 6.5L/L65 24201759 C Truck 5CWP 7.4L/Ll9 24201760 C Truck 5CXP 7.4L/L19 24201761 K Truck 5DLP 7.4L/L19 24201762 P Truck SDPP 7.4L/L19 24201763 P Truck SDNP 7.4L/Ll9 24201764 C Truck 5DRP 7.4L/LI9 24201765 P Truck & G-Van 5LAP 6.5L/L65/L57 24201767 C Truck 5LBP 6.5LAL65 24201768 K Truck 5LFP 6.5L/65/L56 24201769 P Truck 5LHP 6.5L/65/L57 24201770 C Truck 5LLP 6.5L/L65 24201771 P Truck 5LUP 6.5L/L65 24201772 C Truck 5LYP 6.5L/L56 24201773 P Truck & G-Van 5MBP 5.7L/L05 24201774 G-Van 5MCP 5.7L/L05 24201866 P Truck & G-Van 5TWP 7.4L/L19 24201780 G-Van 5TXP 7.4L/Ll9 24201781
OTHER PARTS REQUIRED
Part Number Description Quantity/Vehicle
10952623(4L) Transmission Fluid 8 Litres 15629093 Transmission Case Adapter Gasket 1 8681168 Transmission Case Adapter Seal 1
IMPORTANT:
SUSPECT TRANSMISSION CASES MUST BE A CASTING DIE #4 AND BE THE CASE CAST DATE CLOCK DATES AND WITHIN THE JULIAN DATE AS OUTLINED. IF THE DIE NUMBER OR DATES ARE NOT WITHIN THE GUIDELINES, THE TRANSMISSION IS NOT INVOLVED AND NO FURTHER ACTION IS REQUIRED.
PARTS AND LABOUR CLAIM INFORMATION:
Credit for the campaign work performed will be paid upon receipt of a properly completed campaign claim card or DCS transmission in accordance with the following:
Repair Code Description Time Allowance
1A ALL 1995 Vehicles - Inspection Only .3
2A 1995 C Truck - (Non 3500 HD) - 2.6 Inspect and Replace Transmission
3A 1995 C Truck - (3500 HD) - 2.7 Inspect and Replace Transmission
4A 1995 K Truck - 4.3 Inspect and Replace Transmission
5A 1995 G-Van - 1.5 Inspect and Replace Transmission
9A 1995 P Truck - 2.7 Inspect and Replace Transmission
Time allowance includes 0.1 hour for dealer administrative detail associated with this campaign. Parts credit will be based on dealer net plus 40% to cover parts handling.
THE FOLLOWING "T" LABOUR OPERATIONS SHOULD BE USED IN SCENARIO #3 ONLY. SUSPECT GOODWRENCH TRANSMISSIONS WERE INSTALLED IN CUSTOMER VEHICLES AND THE VIN DOES NOT APPEAR ON DCS SCREEN 45.
Time Net Repair Code Description Allowance Amount
* T2015 All 1991-1995 Vehicles - .3 Inspection Only
T2016 All 1991-1995 Vehicles - ** *** Inspect and Replace Transmission
* No payment allowed to inspect dealers parts inventory.
** The same labour times apply by model as indicated in the claims matrix repair codes.
*** The amount identified in the "Net Amount" column should represent the sum of the current GMSPO Dealer Net price plus 30% (1991-1993) or 40% (1994) for transmission fluid used to perform the required repairs.
SERVICE PROCEDURE:
1. IDENTIFICATION OF TRANSMISSION
***THE TRANSMISSION CASE MUST MEET BOTH OF THE LISTED CRITERIA TO QUALIFY FOR REPLACEMENT. IF ONE OR MORE OF THE CRITERIA ARE NOT MET, THE TRANSMISSION DOES NOT REQUIRE REPLACEMENT.***
1. Inspect the transmission case casting die number on the left or right side of the transmission case.
* The casting die number must be #4 and NOT circled in green ink OR if there is no die number, proceed to Step 2.
ONLY DIE #4 IS INVOLVED. ALL OTHER DIE NUMBERS DO NOT REQUIRE REPAIR.
2. Inspect the Julian date.
* The Julian date must be between 339 through 012.
ALL OTHER DATES DO NOT REQUIRE REPAIR.
BOTH THE DIE NUMBER AND THE JULIAN DATE MUST QUALIFY IN ORDER TO REPLACE THE TRANSMISSION ASSEMBLY.
IF THE TRANSMISSION DOES NOT MEET BOTH OF THE ABOVE LISTED CRITERIA, PROCEED TO STEP 3.
2. REPLACEMENT OF TRANSMISSION
(only if the transmission case meets BOTH of the above listed criteria)
SCENARIO #1: 1995 vehicles produced with suspect transmission assembly which are in dealer new vehicle inventory or have been sold to a customer.
1. Replace the transmission assembly. Use appropriate 1995 Service Manual, Section 7A17B, for the transmission replacement procedure.
2. The removed transmission assembly must be returned in the original shipping container and using the customary GMSPO process.
IMPORTANT: The Product Feedback form MUST include the VIN, the kilometres, and the campaign number. PLEASE HIGHLIGHT THE DIE CASTING #4 BY CIRCLING IT WITH A GREASE MARKER, PAINT STICK, OR A PERMANENT INK MARKER. Do not use green.
3. Install Campaign Identification Label.
SCENARIO: Any 1991-1995 4L80-E Goodwrench transmission assemblies in Dealer Parts Inventory which were ordered from GMSPO BETWEEN DECEMBER 15, 1994 AND JANUARY 20,1995.
A listing of suspect 4L80-E transmissions purchased from GMSPO was supplied to the involved dealers with bulletin 5DO7.
1. GMSPO return process:
The transmission assembly must be returned in the original shipping container and with the appropriate information indicating that the transmission assembly is involved in this recall campaign. PLEASE HIGHLIGHT THE DIE CASTING NUMBER #4 BY CIRCLING IT WITH A GREASE MARKER, PAINT STICK OR A PERMANENT INK MARKER. Do not use green.
SCENARIO #3: Any 1991-1995 4L80-E Goodwrench transmission assemblies ORDERED FROM GMSPO BETWEEN DECEMBER 15, 1994 AND JANUARY 20, 1995 and installed into a customer vehicle by the dealership or sold over the counter or dealer traded.
VIN numbers of vehicles that have had a 4L80-E transmission replaced by the dealer under warranty have been included in the campaign listing.
1. The dealership will need to determine:
a. which customer vehicles they installed the suspect 4L80-E Goodwrench transmission assembly into
b. which customers purchased a suspect 4L80-E Goodwrench transmission assembly
c. which dealers they traded a suspect 4L80-E Goodwrench transmission assembly over the counter with.
2. The dealership will need to contact these customers to arrange an inspection of the transmission case assembly per the instructions in Scenario #1.
INSTALLATION OF CAMPAIGN IDENTIFICATION LABEL
Clean surface of radiator upper mounting panel and apply a Campaign Identification Label. Make sure the correct campaign number is inserted on the label. This will indicate that the campaign has been completed.
General Motors of Canada bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer." They are written to inform these 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 your General Motors dealer for information on whether your vehicle may benefit from the information.
Customer Support Department General Motors of Canada Limited
April 1995
Dear General Motors Customer:
General Motors of Canada Limited has determined that a defect which relates to motor vehicle safety exists in certain 1995 Chevrolet and GMC C/K & P Trucks, and G-Vans equipped with the Hydra-Matic 4L80-E automatic transmission. Some of these vehicles may experience an external transmission fluid leak at the lube feed passage due to thin case casting in the cooler boss area. This condition could allow transmission oil to spray onto the exhaust system which could result in a vehicle fire.
To prevent this condition from occurring, your dealer will inspect the transmission case assembly for the involved case casting. If the transmission assembly is involved, then the transmission will be replaced.
This service will be provided for you at no charge.
Please contact your GM dealer as soon as possible to arrange a service date.
If parts are required, ask your dealer for details regarding their availability. If parts are not in stock, they can be ordered before scheduling your service date.
This letter identifies your vehicle. Presentation of this letter to your dealer will assist their Service personnel in completing the necessary correction to your vehicle in the shortest possible time.
We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.
Customer Support Department General Motors of Canada Limited
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.
