CAMPAIGN: CARB. ANTI-DIESELING SOLENOID CONNECTION
Model and Year: 1985-1986 CHEVROLET C/K 20 LIGHT DUTY MODEL TRUCKS EQUIPPED WITH 5.7L GAS ENGINE (RPO LT9) HEAVY DUTY FEDERAL EMISSIONS (RPO H5D/NA5 AND 4-SPEED MANUAL TRANSMISSION (RPO M20)
General Motors has determined that the engine electrical harness pigtail was not connected to the anti-dieseling solenoid on the carburetor of Flint production 1985-1986 Chevrolet C/K 20 models equipped with 5.7L gas engines, manual transmission and heavy duty federal emissions. Not connecting the engine harness to this solenoid results in a curb idle speed of 600 rpm rather than the specified 800 rpm curb idle.
It is necessary to connect the existing engine electrical harness pigtail to the anti-dieseling solenoid to bring these vehicles into conformity.
VEHICLES INVOLVED
Involved are all 1985-1986 Chevrolet light duty model C/K 20 trucks equipped with 5.7L gas engines (RPO LT9) with heavy duty federal emissions (H5D/NA5) and 4-speed manual transmissions (M20) within the following VIN breakpoints:
YEAR PLANT FROM THROUGH ---- ----- ---- ------- 1985 Flint (Line 1) FF350750 FF449562 Flint (Line 2) FF136162 FF214514 1986 Flint (Line 1) GF300943 GF402526 Flint (Line 2) GF101663 GF174823
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.
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
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 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.
SERVICE PROCEDURE
Refer to figure 1.
1. Remove the air cleaner assembly.
2. Locate the carburetor solenoid.
3. Inspection:
o If there is a single wire pigtail which is pink with a black stripe connected to the anti-dieseling solenoid no further action is required. Proceed to step 4.
o If there is nothing connected to the anti-dieseling solenoid locate the pink with a black stripe pigtail which is part of the engine harness and connect it to the anti-dieseling solenoid. Proceed to step 4.
o If there is a dark green electrical pigtail connected to the anti-dieseling solenoid unplug it and tape it back out of the way. Locate the pink with a black stripe pigtail which is part of the engine harness and connect it to the solenoid.
4. Reinstall air cleaner assembly.
5. Install Campaign Identification Label per instructions in this bulletin.
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 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.
CLAIM INFORMATION
Submit a Product Campaign Claim with the information indicated below:
* FAILED PARTS LABOR LAB OTH REPAIR PERFORMED PC PART NO. ALLOW FC OP HRS HRS -------------------------------------------------------------------- INSPECT & IF NECESSARY 00 V4030 0.2 0.1 CONNECT PIGTAIL TO SOLENOID
*Campaign Administrative Allowance
Dealers will automaticially receive the correct labor allowance based on the labor operation performed.
Refer to the Chevrolet Claims Processing Manual for details on Product Campaign Claim submission.
(Notification Used By Chevrolet Motor Division)
Dear Chevrolet Owner:
General Motors has determined that the engine electrical harness pigtail was not connected to the anti-dieseling solenoid on the carburetor of your 1985 or 1986 Chevrolet light duty truck equipped with a 5.7 liter gas engine, manual transmission and heavy duty federal emissions. Not connecting the engine harness to this solenoid results in a curb idle speed of 600 rpm. This low idle may result in a rough running engine at idle and possible stumble on acceleration from idle. This deviates from the 800 rpm curb idle specified for this engine.
It is necessary to connect the engine electrical harness to the anti- dieseling solenoid to correct this condition. Your Chevrolet dealer will perform this service at no charge to you.
Instructions for making the connection have been sent to your dealer. Please contact your dealer to arrange a service date. The labor time to perform this service is approximately 20 minutes. Please allow additional time for your dealer to process your vehicle.
The enclosed owner reply card identifies your vehicle. Presentation of this card to your dealer will assist in making the 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 identification reply card and returning it to us so that we may update our records. Should your dealer not schedule a service date within a reasonable time, you should contact your nearest Chevrolet Branch Office either in person or by telephone for assistance. The locations and telephone numbers of the Branch Offices attached for your convenience.
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
CHEVROLET BRANCH OFFICES
WHEN CALLING FOR ASSISTANCE, PLEASE ASK FOR THE CONSUMER RELATIONS REPRESENTATIVE.
ATLANTA HOUSTON Chevrolet Customer Assistance 13101 N.W. Freeway 30007 Van Dyke Suite 101 Warren, MI 48090 Houston, TX 77040 1 -800-222-1020 (713) 460-7301 BOSTON KANSAS CITY Chevrolet Customer Assistance 10800 Farley 30007 Van Dyke Suite 100 Warren, MI 48090 Overland Park, KS 66210 1 -800-222-1020 (913) 451-4380 CHARLOTTE LOS ANGELES Chevrolet Customer Assistance 515 Marin Street 30007 Van Dyke Suite 101 Warren, MI 48090 Thousand Oaks, CA 91360 1 -800-222-1020 (805) 373-9379 CHICAGO MEMPHIS 475 Alexis R. Shuman Blvd. 866 Ridgeway Loop Ave. Naperville, IL 60566 Memphis, TN 38117 (312) 961 -6380 (901) 756-3360 CINCINNATI MINNEAPOLIS Chevrolet Customer Assistance 7600 Metro Blvd, 30007 Van Dyke Edina, MN 55435 Warren, MI 48090 (612) 830-4044 1 -800-222-1020 NORTH JERSEY CLEVELAND 9 Sylvan Way 25000 Great Northern Corporate Center Parsippany, NU 07054 Suite 444 (201) 993-4155 North Almsted, OH 44070 OAKLAND* (216) 265-5600 39465 Paseo Padre Parkway DALLAS Fremont, CA 94538 130 E. Carpenter Freeway (415) 498-5080 Irving, TX 75062 OKLAHOMA CITY (214) 659-5441 6307 Watedord Blvd. DENVER Suite 200 5460 S. Quebec St. Oklahoma City, OK 73118 Suite 330 (405) 841 -5000 Englewood, CO 80111 PHILADELPHIA (303) 930-5720 851 Duportail Rd. DETROIT Wayne, PA 19087 Chevrolet Customer Assistance (215) 296-6600 30007 Van Dyke WASHINGTON Warren, MI 48090 1395 Piccard Drive 1-800-222-1020 Rockville, MD 20850 PITTSBURGH (301) 258-1444 2 Penn Center W. CENTRAL OFFICES Suite 200 UNITED STATES Pittsburgh, PA 15276 Chevrolet Motor Division (412) 928-5125 Consumer Relations Dept. PORTLAND' Chevrolet Central Office 10300 S.W. Greenburg Road, Warren, Michigan 48090 Suite 500 (313) 492-5500 Portland, OR 97223 CANADA (503) 293-5000 Customer Services Dept. ST. LOUIS G M of Canada Limited 83 Progress Parkway Oshawa, Ontario L1J 5Z6 Maryland Heights, MO 63043 (416) 644-6624 (314) 895-8608A8609 SYRACUSE Chevrolet Customer Assistance 30007 Van Dyke Warren, MI 48090 1-800-222-1020 TAMPA 3030 N. Rocky Point Dr. Suite 800 West Tampa, FL 33607 (813) 885-5000 TARRYTOWN 2500 Westchester Ave. Purchase, NY 10577 (914) 251 -5121
*NOTE: The state of ALASKA is serviced by the Portland Branch.
The state of HAWAII is serviced by the Oakland Branch. In Hawaii, call 1-800-428-8244.
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.
