CAMPAIGN:EGR BLEED RESTRICTOR OMITTED/POOR ENG. PERFORMANCE
MODELS: 1982-1983 C,K LIGHT DUTY TRUCKS EQUIPPED WITH 4.1L ENGINE AND AUTOMATIC TRANSMISSION
General Motors has determined that some 1982 C15 and 1983 C15-25, K15 Series Light Duty GMC Trucks equipped with 4.1 liter L6 engines and automatic transmissions may be emitting pollutants in excess of Federal Emission Standards.
The EGR bleed restrictor may have been omitted in the exhaust emission control harness assembly. The absence of this bleed restrictor may result in poor engine performance and failure to meet NOx emission standards.
Vehicles Involved
All 1982 C 15 and 1983 C15-25, K15 Series Light Duty GMC Trucks with RPO's LE3 (4.1L L6 engine) MD8 (automatic transmission) and NA6 or NA6 (Federal or High Altitude) emissions within the following vehicle parameters.
Plant Year Model From Through ----- ---- ----- ---- -------
Oshawa 1982 C15 C1540675 C1544499 1983 C15-25,K15 D1500069 (only one involved)
Janesville 1982 C15 CJ519892 CJ521587 1983 C15-25,K15 DJ500001 DJ502609
Flint 1982 C15 CF719403 EOP 1983 C15-25,K15 SOP 83 DF702044
St.Louis 1983 C15-25,K15 SOP 83 DS503343
The specific vehicles involved in this campaign have been identified by Vehicle Identification Number Computer Listings. These listings are furnished to all involved dealers with the campaign 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.
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.
GMC Truck General Motors Corporation 101 Union Street Plymouth, Michigan 48170
OWNER NOTIFICATION
Owners willl be notified of this campaign on their vehicle by GMC Truck (see copy of Owner Letter included with this bulletin). A listing of owner names and address has been furnished 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. Raise hood.
2. Remove air cleaner assembly.
3. Remove vacuum tee that contains hoses from the EGR valve, air cleaner and carburetor vacuum part (Refer to Figure No. 1).
4. Install new vacuum tee P/N 14057211 as shown in Figure No. 1.
5. Reinstall air cleaner and hoses to the EGR valve, air cleaner and carburetor vacuum.
6. Close hood.
PARTS INFORMATION
Parts required to complete this campaign will be shipped to involved dealers by GMC Truck on a no charge basis. Any questions as it pertains to parts shortages, etc., should be directed to your Zone Service Department.
Part Name Part Number Quantity per Vehicle Parts Allowance --------- ----------- -------------------- ----------------
EGR 14057211 1 $.22 Bleed Restrictor
The $.22 identified in the "Parts Allowance Column" represents 30% of dealer net when parts are fumished at no charge by GMC Truck. This amount is to be placed in the Net Item Amount column of the claim and use type code "M".
WARRANTY INFORMATION
Dealers should submit an accurately filled out Warranty Repair Order on each vehicle completed under this campaign.
Labor Operation * Time Number Description Allowance Trouble Code ------ ----------- ---------- -------------
V1870 Install EGR bleed restrictor 0.2 Hr. 96 in accordance with the instructions outlined in this bulletin
*For dealer to receive Administration Time Allowance 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 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 PROCEDURE
Procedures covering this campaign are outlined in Section V of your dealership's "GMC Truck Claims Processing Manual" issued April, 1983.
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.
