CAMPAIGN: EVAPORATIVE CANISTER PURGE THERMO VACUUM SWITCH

GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1982 CHEVROLET MODEL VEHICLES MAY EXPERIENCE AN INOPERATIVE CANISTER PURGE THERMO VACUUM SWITCH (TVS). AN INOPERATIVE CANISTER PURGE TVS CAN ADVERSELY AFFECT THE INTENDED FUNCTION OF THE EVAPORATIVE EMISSION SYSTEM. TO PREVENT THE POSSIBILITY OF THIS CONDITION OCCURRING, THE CANISTER PURGE TVS WILL BE REPLACED ON ALL INVOLVED VEHICLES. VEHICLES INVOLVED INVOLVED ARE ALL 1982 CHEVROLET CAPRICE CLASSIC, IMPALA, CAMARO, MALIBU CLASSIC, MONTE CARLO AND EL CAMINO MODELS EQUIPPED WITH 3.8L (RPO LC3, VIN CODE K), 4.4L (RPO L39, VIN CODE J), 5.0L (RPO LG4, VIN CODE H), OR 5.7L (RPO LM1, VIN CODE L) ENGINE PRODUCED FROM START-OF- PRODUCTION 1982 MODEL YEAR THROUGH END-OF-PRODUCTION 1982 MODEL YEAR. 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 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 SUCH 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 RESPONSIBLITY 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 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. IF THERE IS EVIDENCE OF INTENTIONAL DISABLEMENT OF THE EVAPORATIVE EMISSION SYSTEM, THE DEALER IS TO NOTIFY THE VEHICLE OWNER OF THIS CONDITION AND ASK THE OWNER IF HE/SHE WANTS THE SYSTEM RESTORED. THE COST OF SUCH RESTORATION WILL BE THE RESPONSIBLITY OF THE VEHICLE OWNER. PARTS INFORMATION PARTS REQUIRED TO COMPLETE THIS CAMPAIGN ARE TO BE OBTAINED FROM GENERAL MOTORS SERVICE PARTS OPERATIONS (GMSPO). TO INSURE THAT THESE PARTS ARE OBTAINED AS SOON AS POSSIBLE THEY SHOULD BE ORDERED ON A C.I.O. ORDER WITH NO SPECIAL INSTRUCTION CODE, BUT ON ADVISE CODE (2). PART NUMBER DESCRIPTION QUANTITY/VEHICLE 10055876 THERMO VACUUM SWITCH 1 TO INSURE PARTS AVAILABILITY UPON INITIAL OWNER REQUEST FOR VEHICLE CORRECTION, (PONTIAC 3, GMC 1) P/N 10055876 THERMO VACUUM SWITCHES WILL BE PRESHIPPED AND CHARGED TO ALL INVOLVED DEALERS. DEALERS REQUIRING MORE PARTS THAN THE PRESHIPPED AMOUNT, BASED ON ATTACHED INVOLVED VEHICLE LISTINGS, ARE ENCOURAGED TO ORDER ADDITIONAL PARTS UPON RECEIPT OF THIS BULLETIN. SERVICE PROCEDURE 1. DISCONNECT NEGATIVE BATTERY CABLE. 2. DRAIN COOLANT (SAVE IN CLEAN CONTAINER FOR REUSE) TO A LEVEL JUST BELOW TVS. 3. REMOVE AIR CLEANER. 4. REMOVE CANISTER PURGE TVS (SEE ILLUSTRATION). 5. COAT NEW CANISTER PURGE TVS (P/N 10055876) WITH THREAD SEALANT (P/N 1052080) AND INSTALL. 6. REINSTALL AIR CLEANER. 7. REFILL COOLANT. 8. RECONNECT NEGATIVE BATTRY CABLE. 9. INSTALL CAMPAIGN IDENTIFICATION LABEL. 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 * OTHERS REPAIR PERFORMED PC PART NO. ALLOW FC OP HRS HRS REPLACE THERMO 1 10055876 ** 00 V4090 0.3 0.1 VACUUM SWITCH

*CAMPAIGN ADMINISTRATIVE ALLOWANCE **THE "PARTS ALLOWANCE" SHOULD BE THE SUBTOTAL OF THE CURRENT GMSPO DEALER NET PRICE PLUS 30% OF ALL PARTS REQUIRED FOR THE REPAIR.

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.