CAMPAIGN:INFORMATION DELCOTRON GENERATOR REGULATOR
Model and Year: 1983-1984 S/T 10 SERIES CHEVROLET BLAZER MODELS EQUIPPED WITH RPO'S C60 AIR CONDITIONING AND C49 REAR WINDOW DEFOGGER, 1983-1984 C/K10, 20 SERTES SUBURBAN MODELS EQUIPPED WITH RPO'S C36 REAR AUXILIARY HEATER AND C49 REAR WINDOW DEFOGGER
General Motors has determined that some 1983-1984 S/T 10 series Blazer and CK 10-20 series Suburban models, equipped with the 78 Amp Delcotron generator may be subject to voltage regulator failure under certain conditions of temperature, load, and engine/generator speed. The resulting failure of the voltage regulator can cause high system voltage and lead to loss of generator output.
To prevent the possibility of this inconvenience occurring, it will be necessary to replace the voltage regulator with one that is not affected by temperature, load, and engine/generator speed conditions.
VEHICLES INVOLVED
Involved are certain 1983-1984 S/T 10 series Blazer models equipped with RPO'S C60 air conditioning and C49 rear window defogger. Vehicles with this option combination have the 78 Amp Delcotron generator. These vehicles were built within the following VIN Breakpoints:
Year Plant From Through ---- ----- ---- ------- 1983 Pontiac D0100010 D0176414 Shreveport D8129448 D8180664
1984 Pontiac E0100001 E0157783 Shreveport E8100008 E8196202
Also involved are certain 1983-1984 C/K 10-20 series Suburban models equipped with RPO'S C36 rear auxiliary heater and C49 rear window defogger. Vehicles with this option combination have the 78 Amp Delcotron generator. These vehicles were built within the following VIN breakpoints:
Year Plant From Through ---- ----- ---- ------- 1983 Flint DF100003 DF163819
1984 Flint EF100471 EF156216
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 was not shipped any involved vehicles.
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 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.
SERVICE PROCEDURE
The voltage regulator is mounted inside the generator and is attached to the slip ring end frame. Replacement of the voltage regulator will involve removal and partial disassembly of the generator. The procedures for generator removal and disassembly are outlined in the appropriate service manual.
Reference Service Manuals Pages ------------------------- ----- ST-330-83 83 Light Duty Trucks 6D-26-27 ST-382-84 84 Light Duty Trucks 6D-26-27 ST-369-83 83 S-Truck 6D-24-27 ST-381-84 84 S-Truck 6D-24-27
Instructions are also included with the replacement regulator.
PARTS INFORMATION
Parts are to be obtained from the Warehousing and Distribution Division of General Motors (WDDGM). To ensure that these parts will be obtained as soon as possible, they should be ordered from WDDGM on a C.I.O. order with no special instruction code, but order on an advise code (2).
Part Number Quantity Description ----------- -------- ----------- 1116409 Voltage Regulator
CLAIM INFORMATION
Submit a Product Campaign Claim with the information indicated below:
Parts Failed **Parts Failure Labor Labor *Other Count Part No. Allowance Code Operation Hours Hours ----- -------- ---------- ---- --------- ----- -----
1 1116409 00 V2210 .7 .1
DESCRIPTION: Remove and replace voltage regulator. Includes R & R generator. S/T 10 Blazer model with L-4 engine.
Parts Failed **Parts Failure Labor Labor *Other Count Part No. Allowance Code Operation Hours Hours ----- -------- --------- ---- --------- ----- -----
1 1116409 00 V2211 .5 .1
DESCRIPTION: Remove and replace voltage regulator. Includes R & R generator. S/T 10 Blazer model with V-6 engine.
Parts Failed **Parts Failure Labor Labor *Other Count Part No. Allowance Code Operation Hours Hours ----- -------- ---------- ---- --------- ----- -----
1 1116409 00 V2212 .6 .1
DESCRIPTION: Remove and replace voltage regulator. Includes R & R generator. C/K 10-20 series Surburban models with V-8 engines.
Parts Failed **Parts Failure Labor Labor *Other Count Part No. Allowance Code Operation Hours Hours ----- -------- --------- ----- --------- ------ ----- 1 1116409 00 V2213 .5 .1
DESCRIPTION: Remove and replace voltage regulator. Includes R & R generator. C/K 10-20 series Suburban models with diesel engines.
*Campaign Administrative Allowance
**The Parts Allowance should be the sum total of the current WDDGM Net plus 30% of all parts required for the repair.
Dealers will automatically receive the correct parts and labor allowance based on the Labor Operation performed.
Refer to the Chevrolet Claims Processing Manual for details on Product Campaign claim submission.
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 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
REFER TO THE CURRENT CHEVROLET SERVICE POLICIES AND PROCEDURES MANUAL AND CLAIMS PROCESSING MANUAL FOR CAMPAIGN HANDLING AND ADMINISTRATIVE PROCEDURES.
General Motors has determined that some 1983-1984 S/T 10 Chevrolet Blazer, C/K 10-20 series Suburban models equipped with the 78 Amp Delcotron generator may be subject to voltage regulator failure under certain conditions of temperature, load, and engine/generator speed. The resulting failure of the voltage regulator can cause high system voltage and lead to loss of generator output.
To prevent the possibility of this condition occurring on your vehicle, please contact your Chevrolet dealer on or after July 9, 1984 to arrange a service date. Your dealer will install a new voltage regulator on your vehicle. This service will be performed for you at no charge.
Instructions for making this correction have been sent to your Chevrolet dealer. The labor time required to install the new voltage regulator is approximately 40 minutes. Please allow additional time for the 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 in the shortest possible time. If you have sold or traded your vehicle, please let us know by completing the postage paid owner 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.
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.
