CAMPAIGN: INCORRECT VEHICLE EMISSION CONTROL INFO. LABEL

MODELS: 1985 C15 PICKUPS EOUIPPED WITH A 4.3L ENGINE (RPO LB1), MANUAL TRANSMISSION, FEDERAL EMISSIONS (RPO NA5) AND BUILT WITHOUT DUAL FUEL TANKS (RPO NL2)

General Motors has determined that some 1985 GMC C15 pickup trucks equipped with a 4.3L engine (RPO LBI), manual transmission, Federal Emissions (RPO NA5) and built without dual fuel tanks (RPO NL2), may have been assembled with an incorrect Vehicle Emission Control Information Label. The label incorrectly identifies the engine tune-up specifications.

To correct this condition a new revised emission label has been issued. This label will be sent directly to all involved owners in order to eliminate owner inconvenience. Owners may install the new label or ask a dealer to do this service at no charge to the owner.

VEHICLES INVOLVED

Involved are certain 1985 GMC C15 pickup trucks equipped with a 4.3L engine (RPO LBl), manual transmission, Federal Emissions (RPO NA5) and built without dual fuel tanks (RPO NL2). The vehicles involved were built within the following assembly plant and VIN breakpoints:

Plant From Through ----- ---- ------- Flint FF705627 FF714224 Janesville FJ505221 FJ513915 StLouis FS505434 FS515713 Oshawa F1509513 F1523848

The specific vehicles involved in this campaign have been identified by Vehicle Identification Number computer listings. These listings and a new emission label for each vehicle for which there is no owner of record, have been furnished to involved dealers with the campaign bulletin. If a vehicle has been recently delivered, and the owner's name is not on your VIN listing, please contact the owner to have the new emissions label installed. It is your responsibility to see that the new emission labels are installed on recently sold vehicles.

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.

If no owner's name and address were available to GMC Truck at the time of campaign initiation, the dealer will determine the owner's name and address from the dealership sales records. Please provide this information directly on the second copy of the listing next to the applicable VIN, so that our records may be updated and the appropriate notification mailed to the owner. This second copy should then be submitted to the address listed below in the previously supplied yellow campaign envelopes.

G M C Truck General Motors Corporation 101 Union Street Plymouth, Michigan 48170

OWNER NOTIFICATION

Owners will be notified of this campaign on their vehicles by GMC Truck (see copy of Owner Letter included with this bulletin). A listing of owner names and addresses has been fumished to the involved dealers to enable dealers to follow up with owners involved in this campaign. This listing 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 this campaign.

SERVICE PROCEDURE

1. Open hood of vehicle and locate old emission label. This label is located on a panel just above the radiator assembly (see illustration included in this bulletin).

2. Using a clean, dry cloth, wipe dirt, oil, etc.,from the old label and surrounding area.

3. Remove backing from the new label, and apply new label directly over the old label.

4. Beginning at the center of the label and using a clean, dry cloth, smooth and secure the new label. Any air bubbles can be removed by puncturing with a pin and smoothing with the cloth.

NOTICE: DO NOT ATTEMPT TO REMOVE LOOSEN THE NEW LABEL ONCE IT HAS BEEN APPLIED AS THIS WILL DEFACE THE LABEL.

PARTS INFORMATION

The new emission label, required for each vehicle involved will be mailed to owners of record and involved dealers by GMC Truck.

Any questions as it pertains to parts shortages, etc., should be directed to your Zone Office. DO NOT ORDER PARTS FROM WDDGM.

Qty. Per Part Number Description Vehicle ----------- ----------- ------- 14091996 Vehicle Emission Control 1 Information Label

WARRANTY INFORMATION

Dealers should submit an accurately filled out Warranty Repair Order on each vehicle completed under this campaign.

Labor *Time Operation Allow- Trouble Number Description ance Code ------ ----------- ---- ---- V2970 Install new 0.2Hrs. 96 emission label P/N 14091996.

* For dealer to receive Administration Time Alloqance associated with this campaign, add 0.1 hour to the Labor Operation Time Allowance.

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 (5) digit Dealer Code of the dealer performing the campaign service. This information may be inserted with a typewriter or ballpoint pen.

Each "Campaign Identificattion 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

Procedures covering this campaign are outlined in Section V of your dealership's "GMC Truck Claims Processing Manual" #SD 8519.

Dear GMC Truck Owner:

General Motors has determined that some 1985 GMC C15 pickup trucks equipped with RPO LB1 4.3L V6 engine (VIN Code "N"), manual transmission, Federal Emissions and without Dual Fuel Tanks may have been assembled with an incorrect Vehicle Emission Control Information Label.

To correct this condition, a new revised emission label has been issued. For your convenience this label is being sent to you directly. You may install it yourself or ask your GMC Truck dealer for assistance. Installation instructions can be found on the reverse side of this letter.

If you install the new label or if you have sold or traded your vehicle, please complete the enclosed postage paid owner reply card and mail it to us. This will assist us in assuring that all affected vehicles have been corrected.

We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our product.

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.