CAMPAIGN: TRANSAXLE HARSH SHIFTS OR SLOW RESPONSE
Subject: PRODUCT CAMPAIGN 95-C-40 - TRANSAXLE HARSH SHIFTS OR SLOW RESPONSE
Model and Year: 1995 CHEVROLET LUMINA AND MONTE CARLO
To: All Chevrolet/Geo Dealers
General Motors has decided that certain 1995 Lumina and Monte Carlo model vehicles equipped with a 3.4L DOHC engine (RPO LQ1) may have been built with a partially or fully blocked transaxle modulator port on the intake manifold plenum vacuum distribution block. This can result in harsh transaxle shifts or slow response of the vacuum modulator during certain driving conditions which could cause reduced customer satisfaction or durability. Replacement of the vacuum distribution block will allow the transaxle to have sufficient line pressure response to control bands and clutches during vehicle operation.
To prevent this condition from occurring, dealers are to replace suspect intake manifold vacuum distribution block.
VEHICLES INVOLVED
Involved are certain 1995 Lumina and Monte Carlo model vehicles equipped with a DOHC 3.4L engine (RPO LQ1) built within the following VIN breakpoints:
PLANT YEAR MODEL PLANT CODE FROM THROUGH ----------------------------------------------------------- 1995 W-Car Oshawa "9" S9310553 S9314321
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 Chevrolet Motor Division (see copy of owner letter included with this bulletin).
DEALER CAMPAIGN RESPONSIBILITY
All unsold new vehicles in dealers' 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 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 owners 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
A preshipment will be sent to involved dealers the week of May 29, 1995. Preshipment will equal parts for 100% of the number of vehicles to be repaired. Preshipment parts will be charged to the dealers open parts account.
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) All Goodwrench parts system test dealers should order on a "VIP" order.
Quantity/ Part Number Description Vehicle ---------------------------------------------------------- 24503787 Vacuum Block 1
SERVICE PROCEDURE
(A FIGURE IS INCLUDED ON PAGE 4 FOR REFERENCE PURPOSES)
1. Raise hood.
2. Remove the three (3) rear spark plug wires from the vacuum distribution block spark plug wire clip.
3. Remove the two (2) 10mm attaching bolts.
4. Remove the vacuum distribution block and disconnect the two (2) vacuum lines.
5. Use a light coat of engine oil on the vacuum distribution block "O" ring and install the new vacuum distribution block. Reattach the vacuum lines to the new vacuum distribution block.
6. Tighten the two (2) 10mm bolts to 5 Nm (44 lb. in.).
7. Reattach the spark plug wires into the spark plug wire clip on the new vacuum distribution block.
8. 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 campaign number and 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. When installing the new Campaign Identification Label, be sure to install the clear protective covering. Additional Campaign Identification Labels can be obtained from VISPAC Incorporated by calling 1-800-269-5100 (Monday-Friday, 8:00 a.m. to 4:30 p.m. EST). Ask to Item Number S-1015 when ordering.
Apply "Campaign Identification Label", only on a clean, dry surface.
CLAIM INFORMATION
Submit a Product Campaign Claim with the information indicated below:
* FAILED PARTS LABOR LABOR OTHER REPAIR PERFORMED PC PART NO. ALLOW CC-FC OP HOURS HOURS ------------------------------------------------------------------- Replace Vacuum 1 24503787 ** SK-00 V9650 0.3 0.1 Block
* Campaign Administrative Allowance.
** The "Parts Allowance" should be the sum total of the current GMSPO Dealer Net price plus 40% of all parts required for the repair.
Refer to the Chevrolet Claims Processing Manual for details on Product Campaign Claim Submission.
Dear Chevrolet Customer:
This notice is sent to inform you that Chevrolet Motor Division is conducting a recall campaign that includes your vehicle.
REASON FOR THIS RECALL
General Motors has decided that certain 1995 Lumina and Monte Carlo model vehicles equipped with a 3.4L DOHC engine (LQ1) may have been built with a partially or fully blocked transaxle modulator port on the intake manifold plenum vacuum distribution block. This can result in harsh transaxle shifts or slow response of the vacuum modulator during certain driving conditions which could cause reduced customer satisfaction or durability. Replacement of the vacuum distribution block will allow the transaxle to have sufficient line pressure response to control bands and clutches during vehicle operation.
WHAT WE WILL DO
To prevent this condition from occurring, dealers are to replace suspect intake manifold vacuum distribution block. 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 and so the dealer may order the necessary parts for the repair. Instructions for performing this service have been sent to your dealer and parts are available. Please contact your dealer to arrange a service date as soon as possible. You may ask your dealer if you wish to know how much time will be needed to schedule and process your vehicle.
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.
Chevrolet Motor Division GENERAL MOTORS CORPORATION
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.
