Campaign - Transmission Replacement
85C057A
January, 1985
Subject: PRODUCT CAMPAIGN 85C05
INCORRECT 700R4 AUTOMATIC TRANSMISSION MAY CAUSE PREMATURE FAILURE
Model and Year:
1985 CHEVROLET 20 SERIES 2WD PICK UP AND SUBURBAN MODELS EQUIPPED WITH A 6.2L HEAVY DUTY EMISSION DIESEL ENGINE (RPO LL4) AND 700R4 AUTOMATIC TRANSMISSION (RPO MXO)
TO: ALL CHEVROLET DEALERS
General Motors has determined that certain 1985 Chevrolet 20 Series 2WD Pick Up and Suburban model trucks equipped with a 6.2L heavy duty emission diesel engine (RPO LL4) and a 700R4 automatic transmission (RPO MXO) were built with the wrong transmission. Operating the vehicle, with this condition, could result in torque convertor lug attachment cracking and subsequent convertor leakage, torque convertor pump vane failure, transmission internal clutch failures, and no upshift at wide open throttle. In addition, because the transmission wiring harness is incompatible with the vehicle wiring harness, the lock up clutch in the torque convertor will not engage resulting in transmission overheating and subsequent premature failure.
To prevent the possibility of this condition occurring, it will be necessary to replace the originally installed transmission assembly with a correct transmission.
VEHICLES INVOLVED
Involved are certain 1985 Chevrolet Series 2WD Pick Up and Suburban model trucks equipped with a 6.2L heavy duty emission diesel engine (RPO LL4) and a 700R4 automatic transmission (RPO MXO) and built within the following VIN breakpoints:
Plant From Through
Flint FF106799 FF110370
Janesville (1 Unit FJ105725)
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 the involved dealers with the campaign bulletin. Owner name and address data furnished will enable dealers to follow-up with owners involved in this campaign.
INVOLVED VEHICLE (CONT'D)
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 followup necessary to complete this campaign. Any dealer not receiving a computer listing with the campaign bulletin was not shipped any involved vehicles.
OWNER NOTIFICATION
Owners will be notified of this campaign on their vehicles by Chevrolet Motor Division (see copy of Owner Letter included with this bulletin).
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.
Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your dealership for service in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle.
Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the dealer, and arrangements made to make the required modification according to instructions contained in this bulletin.
SERVICE PROCEDURE
1. Remove the original transmission assembly from the vehicle (reference the 1984 Chevrolet Light Duty Truck Service Manual, ST-330-84, for instructions).
2. Install replacement transmission, part number 8654525, in vehicle using six new torque convertor attaching bolts, part number 1261968 (reference the 1984 Chevrolet Light Duty Truck Service Manual, ST-330-84, for instructions).
3. Remove all plastic plugs from the replacement transmission and install in the removed transmission being returned.
4. Install original transmission dipstick, dipstick tube and throttle valve cable on replacement transmission.
5. On all in service models, flush transmission cooler and lines (reference the 1984 Chevrolet Light Duty Truck Service Manual, ST-330-84, for instructions).
SERVICE PROCEDURE (CONT'D)
6. Add transmission fluid to obtain proper level.
7. Install replacement torque convertor cover, part number 14038616, on replacement transmission using four new bolts, part number 11500079.
8. Adjust the throttle valve cable per instructions contained in the 1984 Chevrolet Light Duty Truck Service Manual, ST-330-84.
9. Install Campaign Completion label.
10. Road test vehicle to verify transmission proper operation and torque convertor clutch engagement/disengagement.
PARTS INFORMATION
Parts are to be obtained from the Warehousing and Distribution Division of General Motors (WDDGM). To ensure that these parts will be obtained as soon as possible, they should be ordered from WDDGM on a C.I.O. Order with NO special instruction code, but order under an advise code (2).
Involved dealers will receive a shipping ID tag and a blank "Bill of Lading" with the Campaign Bulletin. Transmission assemblies removed from vehicles must be tagged and returned in container supplied with replacement transmission. If required, additional shipping tags can be obtained by contacting your Zone Office.
The following parts are required for each vehicle involved:
Part Number Description Qty. Per Vehicle
8654525 Transmission 1
1051855 Fluid 5 qts.
14038616 Convertor Cover 1
11500079 Convertor Cover Bolt 4
1261968 Convertor Mtg. Bolt 6
SHIP RETURN TRANSMISSION FREIGHT COLLECT TO THE FOLLOWING ADDRESS:
Cycle Tec 1200 Oakman Blvd. Detroit, MI. 48238
TRANSMISSION MUST BE COMPLETELY DRAINED OF FLUID PRIOR TO SHIPMENT.
CLAIM INFORMATION
Submit a Product Campaign Claim with the information indicated below:
Parts Failed **Parts Failure Labor Labor *Other
Count Part No. Allowance Code Operation Hours Hours
17 8654525 00 V2480 2.2 .1
Description: Replace transmission assembly and associated parts according to the instructions outlined in this bulletin.
*Campaign Administrative Allowance.
**The (Parts Allowance) should be the sum total of the current WDDGM Dealer Net price plus 30% for material used in conjunction with this campaign.
Dealers will automatically receive the correct labor and material allowance based on the labor operation performed.
Refer to the Chevrolet Claims Processing Manual for details on Product Campaign Claim submission.
CAMPAIGN IDENTIFICATION LABEL:
CAMPAIGN IDENTIFICATION LABEL
Each vehicle modified 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 digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or ballpoint 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.
ADMINISTRATIVE PROCEDURES
REFER TO THE CURRENT CHEVROLET SERVICE POLICIES AND PROCEDURES MANUAL AND CLAIMS PROCESSING MANUAL FOR CAMPAIGN HANDLING AND ADMINISTRATIVE PROCEDURES.
(Notification Used by Chevrolet Motor Division)
Dear Chevrolet Owner:
General Motors has determined that certain 1985 Chevrolet 20 Series 2WD Pick Up and Suburban model trucks equipped with a 6.2L heavy duty emission diesel engine (RPO LL4) and a 700R4 automatic transmission (RPO MXO) were built with the wrong transmission. Operating the vehicle, with the wrong transmission installed, could result in internal transmission damage and/or no upshift at wide open throttle. In addition, the lock up clutch in the torque convertor will not engage, resulting in premature transmission failure.
To prevent the possibility of this condition occurring on your vehicle, please contact your Chevrolet Dealer to arrange a service date. Your Chevrolet Dealer has been sent instructions and will replace the transmission in your vehicle for you at no charge.
The parts required will be available to your dealer January 18, 1985. The labor time necessary to replace the transmission is approximately two and one quarter (2 1/4) hours. Please ask your dealer if you wish to know how much additional time will be necessary to process your vehicle.
The enclosed Owner Reply Card identifies your vehicle. Presentation of this card to your dealer will assist them in making the necessary correction to your vehicle in the shortest possible time. If you have sold or traded your vehicle, please let us know by completing the postage paid owner 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.
Chevrolet Motor Division General Motors Corporation
Enclosure