CAMPAIGN: NO REVERSE/BAND DRAG REVERSE MOVEMENT IN NEUTRAL
Subject: PRODUCT SAFETY CAMPAIGN 92C09 4T60 AUTOMATIC TRANSAXLE REVERSE SERVO APPLY PIN BORE
Model and Year: 1992 LUMINA (SEDAN/COUPE) WITH MXO (ME9 4T60) 4-SPEED AUTOMATIC TRANSAXLES
The National Traffic and Motor Vehicle Safety Act, as amended, provides that each vehicle which is subject to a recall campaign of this type must be adequately repaired within a reasonable time after the owner has tendered it for repair. A failure to repair within sixty (60) days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time.
If the condition is not adequately repaired within a reasonable time, the owner may be entitled to an identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance for depreciation.
To avoid having to provide these burdensome solutions, every effort must be made to promptly schedule an appointment with each owner and to repair their vehicle as soon as possible. As you will see in reading the attached copy of the letter that is being sent to owners, the owners are being instructed to contact the Chevrolet Customer Assistance Center if their dealer does not remedy the condition within five (5) days of the mutually agreed upon service date. I f the condition is not remedied within a reasonable time, they are instructed on how to contact the National Highway Traffic Safety Administration.
DEFECT INVOLVED
General Motors has determined that a defect which relates to motor vehicle safety exists in certain 1992 Chevrolet Lumina (sedan/coupe) model vehicles equipped with MXO (ME9 4T60) 4-speed automatic transaxles. The reverse servo apply pin may bind in the case which could cause reverse band distress (loss or slipping of reverse), reverse band drag in drive range (poor performance/low power), or the vehicle to remain in reverse while the indicator shows neutral gear position. If the vehicle remains in reverse while the shift indicator shows neutral, and the driver does not apply the brake, the vehicle may unexpectedly move rearward and cause an accident without prior warning.
To prevent this condition, dealers are to inspect and possibly test involved vehicles, and, if required, replace transaxles. DCS message 01-405, date November 12, 1991 was sent to all Chevrolet Dealers with instructions to hold all unsold suspect vehicles until further notice was received. All unsold suspect vehicles MUST be held at dealers and inspected/repaired per the Service Procedure section of this campaign bulletin BEFORE owners take possession of these vehicles. Completion of this campaign lifts the hold on unsold vehicles in the DCS message.
VEHICLES INVOLVED
Involved are certain 1992 Chevrolet Lumina (sedan/coupe) model vehicles equipped with MXO (ME9 4T60) 4-speed automatic transaxles built within the following VIN breakpoints:
NOTICE: Computer sorting has identified specific vehicles within the following VIN ranges as being involved in this campaign. The involved VIN listing included with this bulletin identifies those vehicles involved in the campaign.
PLANT YEAR MODEL PLANT CODE FROM THROUGH ---- ----- --------- ---- ---------- ---------- 1992 W-Car Oshawa #1 "9" N9137725 * N9151101 *
1992 W-Car Oshawa #2 "1" N1112906 * N1116764 *
* VIN ranges involved are different than in DCS 01-405 dated 11-12-91.
While all vehicles on the involved VIN listing will require inspection of the transaxle ID tag for Julian dates AND inspection of the case for machine unit stamp verification, it is estimated that only about 7% of the vehicles inspected will require a transaxle exchange.
OWNER NOTIFICATION
Owners will be notified of this campaign on their vehicies 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 correction according to instructions contained in this bulletin.
PARTS INFORMATION
Parts required to complete this campaign are to be obtained from General Motors Service Parts Operations (GMSPO). To ensure these parts will be obtained as soon as possible, they should be ordered from GMSPO on a "C.I.O." order with no special instruction code, but on an advise code (2).
Quantity/ Part Number Description Vehicle ---------- ------------------------------- ----------- 8676939 4T60 Transaxle Assembly (Model 2YKH) 1 (if needed)
IT IS ESTIMATED THAT ONLY ABOUT ONE CAR IN EVERY FORTY ON THE INCLUDED INVOLVED VIN LIST WILL ACTUALLY REQUIRE A TRANSAXLE REPLACEMENT.
SERVICE PROCEDURE INSPECTION PROCEDURE ---------------------
1. Ensure car has 4-speed (overdrive) automatic transaxle option. Transaxle shift lever indicator will have an overdrive "OD" and a 3rd gear "D" range if it is a 4-speed automatic transaxle.
NOTICE: It is not necessary to inspect vehicles equipped with 3.4L engines as this powertrain does not use the 4T60 transmission.
2. Raise hood of vehicle and check to see if a black "X" is marked on barrel of case as shown in Figure 3, page 4. If there is a black "X" on barrel no further action is required. These vehicles were corrected at the plant prior to shipment to the dealer. Install a Campaign Identification Label and return vehicle to customer or dealer stock.
If there is not a black "X" on the barrel, further inspection will be required. Continue to next step.
3. Lift vehicle following all safety precautions. Ensure vehicle is properly supported. Inspect transaxle ID tag (see Figure 1, below) and case machining stamp (see Figure 2, page 4) to determine if "Test Procedure" (page 5) must be performed.
If Julian date on transaxle is between 282 to 297 (inclusive) AND the last three digits of lower line stamped on transaxle barrel are "504" allow transaxle to cool for at least eight (8) hours, then proceed to "Test Procedure" section of this bulletin below.
NOTICE: Operation machine stamp at end of barrel is stamped on a cast surface and may be difficult to read. If stamp is not legible, "Test Procedure" must be performed. on the vehicle if the Julian transaxle date is between 282 to 297 (inclusive).
If Julian date on transaxle is not between 282 to 297 (inclusive) OR the last three digits of the lower line stamped on transaxle barrel are not "504", no further action is required. Install Campaign Identification Label and return vehicle to customer or dealer stock.
TEST PROCEDURE
NOTICE: Reverse band drag has been found to be temperature sensitive and may go away once transaxle is up to operating temperature. Vehicle MUST sit outside overnight and should not be run prior to performing the "Test Procedure" which follows. If it is necessary to run vehicle prior to performing the "Test Procedure", do not operate vehicle long enough to allow engine/transaxle to reach operating temperature.
1. Jack up front end of vehicle following all safety precautions such as blocking rear wheels and setting park brake so vehicle will not roll. Ensure both front wheels are off ground and that vehicle is properly supported. Start vehicle, put range selector in Overdrive ("OD") and accelerate to 40 MPH on speedometer.
2. Release accelerator and slowly apply brakes to completely stop wheels. Then, put range selector in Reverse ("R") and idle for five (5) seconds with foot off of brake pedal.
3. Slowly apply brakes to completely stop wheels and then put range selector in Neutral ("N"). With your foot OFF brake pedal, look at drive wheel on driver's side of vehicle. Wheel should be stopped, or spinning in forward direction (counter-clockwise) and can be easily stopped by applying resistance. If this is the case, install a Campaign Identification Label and return vehicle to owner or dealer stock. If this is not the case, proceed to step 4, next page.
4. If wheel on driver's side of vehicle is spinning in reverse (clockwise), transaxle MUST be replaced. Replace transaxle with same model as shown on transaxle ID plate (Figure 1, page 3). Proceed to "Replacement Procedure".
TRANSAXLE REPLACEMENT PROCEDURE
1. With ignition in OFF position, disconnect negative battery cable.
NOTICE: Preset memory settings will be lost when battery is disconnected. A memory retention device (such as Kent- Moore toll KS295A; Borroughs tool BT9027; or Snap-On "Memor-Eze" tool YA960) may be used to retain memory functions. If no such tool is available, please write down preset memory settings to be used to reset these functions later when battery is reconnected.
2. Refer to 1992 Chevrolet Lumina Service Manual, section 7A, for correct transaxle replacement procedures.
NOTICE: Remember to flush transaxle oil cooler and lines as noted in service manual. Time for this is included in labor operation for transaxle replacement.
3. Reconnect negative battery cable and reset all devises which lost their memory when battery was disconnected. 4. 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.
CLAIM INFORMATION
Submit a Product Campaign Claim with the information indicated below
* *** FAILED PARTS CC-FC LABOR LAB OTH NET REPAIR PERFORMED PC PART NO. ALLOW OP HRS HRS AMT ------------------ -- ------- ----- ----- ----- --- --- ----- Perform Inspection Procedure Only -- - - -- SK-00 V7200 0.2 0.1 $#.## - No Further Action Required
Perform And Test -- - - -- SK-00 V7201 0.4 0.1 $#.## - No Further Action required
Perform Inspection and Test Procedure and Install New 1 8676939 ** SK-00 V7202 5.3 0.1 $#.## Transaxle - No Further Action Required
Use For Vehicles Inspected Per Admin message -- - - -- VM-95 T1805 0.2 0.1 $#.## 01-405 dated 11-12-91
* Campaign Administrative Allowance.
** The "Parts Allowance" should be the sum total of the current GMSPO Dealer Net price plus 30% of all parts required for the repair.
*** The $#.## identified in the "Net Amount" column for labor operations V7200 and V7201 represents floor plan interest reimbursement f or the "Stop Delivery" of these vehicles. For V7200 this amount is $49.00 and for V7201 this amount is $56.00.
The $#.## identified in the "Net Amount" column for labor operation V7202 represents the dealer cost plus 30% for transmission fluid required for labor operation V7202. This amount will also include floor plan interest for the "Stop Delivery" of these vehicles in the amount of $84.00.
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.
Dear 1992 Chevrolet Lumina Owner:
This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.
REASON FOR THIS RECALL
General Motors has determined that a defect which relates to motor vehicle safety exists in Certain 1992 Chevrolet Lumina model vehicles equipped with 4-speed automatic transaxles. The reversd servo apply pin may bind in the case which could cause reverse band distress (loss or slipping of reverse), reverse band drag in drive range (poor performance/low power), or the vehicle to remain in reverse while the indicator shows neutral position. If the vehicle remains in reverse while the shift indicator shows neutral, and the driver does not apply the brake, the vehicle may unexpectedly move rearward and cause an accident without prior warning.
WHAT WE WILL DO
To prevent this condition, dealers are to inspect and possibly test involved vehicles, and, if required, install a new transaxle. This service will be performed for you at no charge.
WHAT YOU SHOULD DO
Please contact your Chevrolet dealer as soon as possible to arrange a service date. Instructions for making this correction have been sent to your dealer and parts are available. Please ask your dealer if you wish to know an estimate of the total time needed to schedule and process your vehicle. Included in this time will be approximately 15 minutes required for a technician to perfrom the required inspection.
Additionally, it may be determined through the inspection that it is neccessary to retain your vehicle overnight, or longer, to run a test and, if required, replace your transaxle. Up to 5 1/2 hours of additional time would be required if replacement of the transaxle is neccessary.
Your Chevrolet dealer is best equipped to obtain parts and provide service to ensure that your vehicle is corrected as promptly as possible. If, however, you take your vehicle to your dealer on the agreed service date, and they do not remedy this condition on that date or within five (5) days, we recommend you contact the Chevrolet Customer Assistance Center by calling 1-800-222-1020.
After contacting your dealer and the Customer Assistance Center, if you are still not satisfied that we have done our best to remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 400 Seventh Street, S.W., Washington, D.C. 20590 or call 1-800-424-9393 (Washington D.C. residents use 366-0123).
The enclosed owner reply card identif ies your vehicle. Presentation of this card to your dealer will assist in making the necessary inspection/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 safety and continued satisfaction with our products.
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.
