CAMPAIGN:INCORRECT DISTRIBUTOR MODULE - INSTALL NEW MODULE

GENERAL MOTORS HAS DETERMINED SOME 1986 CHEVROLET CHEVETTE MODELS EQUIPPED WITH 1.6L L4 ENGINE (RPO L17) MAY HAVE BEEN BUILT WITH AN INCORRECT DISTRIBUTOR MODULE. THIS COULD RESULT IN A DIFFICULT OR NO-START CONDITION AND IMPROPERLY SET ENGINE TIMING. IF NOT CORRECTED, THIS CONDITION CAN ALSO AFFECT PROPER OPERATION OF THE EMISSION CONTROL SYSTEM. TO CORRECT VEHICLES WITH THE WRONG DISTRIBUTOR MODULE A NEW MODULE WILL BE INSTALLED AND THE ENGINE TIMING CHECKED AND, IF REQUIRED, RESET. VEHICLES INVOLVED INVOLVED ARE SOME 1986 CHEVROLET CHEVETTE MODELS WITH 1.6L L4 ENGINE (RPO L17) WITHIN THE FOLLOWING PARAMETERS: PLANT FROM THROUGH LAKEWOOD GA146087 GA147120 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 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. PARTS INFORMATION PARTS REQUIRED TO COMPLETE THIS MODIFICATION ARE TO BE OBTAINED FROM GENERAL MOTORS WAREHOUSING AND DISTRIBUTION DIVISION (GMWDD). TO ENSURE THAT THESE PARTS WILL BE OBTAINED AS SOON AS POSSIBLE THEY SHOULD BE ORDERED FROM GMWDD ON A C.I.O. ORDER WITH NO SPECIAL INSTRUCTION CODE, BUT ON AN ADVISE CODE (2). PART NUMBER DESCRIPTION QUANTITY/VEHICLE 1875990 DISTRIBUTOR/MODULE 1 IT IS RECOMMENDED THAT SOME QUANTITY OF PARTS BE ORDERED UPON RECEIPT OF THIS BULLETIN TO ALLOW FOR PART AVAILABILITY UPON OWNER REQUEST FOR VEHICLE MODIFICATION. SERVICE PROCEDURE 1. OPEN HOOD. 2. CHECK THE DISTRIBUTOR FOR THE MANUFACTURER'S DATE CODE LOCATED JUST BELOW THE DISTRIBUTOR CAP ON RIM OF BASE (SEE ILLUSTRATION). IF DATE CODE IS 5L27 PROCEED TO STEP 3. ALL OTHERS, NO REPAIR REQUIRED, PROCEED TO STEP 7. 3. REMOVE DISTRIBUTOR CAP. REMOVE ROTOR, IF NECESSARY, TO INSPECT MODULE. FAIRCHILD MODULES ARE IDENTIFIED BY BRASS COLORED FERRULES ON ATTACHING SCREW HOLES. DELCO MODULES ARE IDENTIFIED BY STEEL COLORED FERRULES ON ATTACHING SCREW HOLES AND WHITE DOT IN CENTER OF THE MODULE. 4. DELCO MODULES NEED NOT BE REPLACED; REASSEMBLE DISTRIBUTOR AND PROCEED TO STEP 7. 5. REPLACE FAIRCHILD MODULE, WITH SERVICE P/N 1875990, FOLLOWING INSTRUCTIONS IN THE 1986 CHEVROLET CHEVETTE SERVICE MANUAL (ST-389-86) PAGE 6D-24. 6. CHECK IGNITION TIMING; SET TO SPECIFICATIONS IF REQUIRED. 7. INSTALL CAMPAIGN COMPLETION LABEL AND CLOSE HOOD. CLAIM INFORMATION SUBMIT A PRODUCT CAMPAIGN CLAIM WITH THE INFORMATION INDICATED BELOW:{ *** FAILED PARTS LABOR LABOR OTHER REPAIR PERFORMED PC PART NO. ALLOW FC OP HRS HRS O INSPECT, IF DATE CODE IS NOT 5L27 NO FURTHER ACTION REQUIRED 00 V3490 .2 .1 O INSPECT, IF DATE CODE IS 5L27, CHECK FOR DELCO MODULE NO FURTHER ACTION REQUIRED 00 V3491 .4 .1 O INSPECT, IF DATE CODE IS 5L27, CHECK FOR DELCO MODULE (VEHICLES EQUIPPED WITH A/C ONLY) NO FURTHER ACTION REQUIRED 00 V3492 .8 .1 O INSPECT, IF DATE CODE IS 5L27, CHECK FOR DELCO MODULE (VEHICLES EQUIPPED WITH P/S ONLY) NO FURTHER ACTION REQUIRED 00 V3497 .7 .1 O INSPECT, IF DATE CODE IS 5L27, CHECK FOR DELCO MODULE (VEHICLES EQUIPPED WITH A/C AND P/S) NO FURTHER ACTION REQUIRED 00 V3493 1.1 .1 O INSPECT DATE CODE AND MODULE, IF FAIRCHILD REPLACE AND RESET TIMING, IF REQUIRED 1 1875990 ** V3494 1.1 .1 O INSPECT DATE CODE AND MODULE IF FAIRCHILD REPLACE AND RESET TIMING, IF REQUIRED (VEHICLES EQUIPPED WITH A/C ONLY) 1 1875990 ** V3495 1.5 .1 O INSPECT DATE CODE AND MODULE, IF FAIRCHILD REPLACE AND RESET TIMING, IF REQUIRED (VEHICLES EQUIPPED WITH P/S ONLY) 1 1875990 ** V3498 1.4 .1 O INSPECT DATE CODE AND MODULE, IF FAIRCHILD REPLACE AND RESET TIMING, IF REQUIRED (VEHICLES EQUIPPED WITH A/C AND P/S) 1 1875990 ** 00 V3496 1.8 .1 *CAMPAIGN ADMINISTRATIVE ALLOWANCE. **THE PARTS ALLOWANCE SHOULD BE THE SUM TOTAL OF THE CURRENT GMWDD DEALER NET PLUS 30% OF ALL PARTS REQUIRED FOR THE REPAIR. DEALERS WILL AUTMOATICALLY 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. 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. 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.