CAMPAIGN: ENGINE GROUND CABLE REPLACEMENT

CONDITION

GENERAL MOTORS HAS DETERMINED THAT A DEFECT WHICH RELATES TO MOTOR VEHICLE SAFETY EXISTS IN SOME 1981 OMEGA MODELS. THE ENGINE TO BODY GROUND CABLE MAY HAVE BEEN DAMAGED DURING MANUFACTURE. AS A RESULT, THE RELATIVE MOTION BETWEEN THE ENGINE AND BODY DURING VEHICLE USE COULD CAUSE THE DAMAGE TO PROGRESS TO A POINT WHERE THE CABLE EVENTUALLY BREAKS. SHOULD THIS OCCUR, AT A TIME WHEN MAXIMUM ELECTRICAL LOADS ARE BEING PLACED ON A VEHICLE, THE HEADLIGHTS MAY SUDDENLY DIM. SUDDEN DIMMING OF THE HEADLIGHTS UNDER SEVERE WEATHER OR NIGHTTIME DRIVING CONDITIONS COULD REDUCE DRIVER VISIBILITY WHICH MAY RESULT IN A VEHICLE CRASH WITHOUT PRIOR WARNING.

CARS AFFECTED

CERTAIN 1981 OLDSMOBILE OMEGA MODELS BUILT AT WILLOW RUN (W) ASSEMBLY PLANT BETWEEN THE FOLLOWING VIN NUMBERS:

BW117938-BW128969

DEALER ACTION

DEALERS ARE TO REPLACE THE ENGINE TO BODY GROUND CABLE ON ALL VEHICLES SUBJECT TO THIS CAMPAIGN.

DEALERS ARE TO PERFORM THIS RECALL CAMPAIGN AT NO CHARGE TO THE OWNER ON AFFECTED VEHICLES, REGARDLESS OF TIME, MILEAGE OR OWNERSHIP, AND ARE TO CORRECT ALL AFFECTED VEHICLES IN DEALER NEW AND USED CAR INVENTORY PRIOR TO THEIR SALE.

WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN IS TAKEN INTO YOUR NEW OR USED CAR INVENTORY IN THE FUTURE, YOU SHOULD TAKE THE STEPS NECESSARY TO BE SURE THE CAMPAIGN CORRECTION HAS BEEN MADE BEFORE RESELLING THE VEHICLE.

DEALERS ARE TO PERFORM THE CAMPAIGN SERVICES ON ALL AFFECTED VEHICLES AS THEY ARE BROUGHT IN FOR ANY KIND OF SERVICE UNTIL ALL AFFECTED VEHICLES HAVE BEEN CORRECTED.

SERVICE PROCEDURE

1. OPEN HOOD, DISCONNECT NEGATIVE BATTERY CABLE AND REMOVE GROUND CABLE TO BELLHOUSING ATTACHING BOLT. APPLICABLE FIGURE.

2. REMOVE GROUND CABLE TO RADIATOR SUPPORT BOLT. SEE APPLICABLE FIGURE.

3. INSTALL NEW GROUND CABLE TO RADIATOR SUPPORT AND TORQUE ATTACHING BOLT TO 6.0 N.M (53 IN.LBS.)

4. INSTALL FLAT CONNECTOR END OF GROUND CABLE BETWEEN ENGINE SHOCK BRACKET AND BELL HOUSING. TORQUE ATTACHING BOLT TO 75 N.M (55 FT.LBS.) AND RECONNECT NEGATIVE BATTERY CABLE.

5. INSTALL YELLOW CAMPAIGN CORRECTION LABEL 81-C-9 ON THE RADIATOR BAFFLE WHERE IT IS READILY VISIBLE.

PARTS INFORMATION

PARTS REQUIRED TO COMPLETE THE MODIFICATION ARE TO BE OBTAINED FROM YOUR GENERAL MOTORS PARTS (GMWDD). THE PART NUMBER FOR THE ENGINE GROUND STRAP IS 12021582. TO ENSURE 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 ORDER ON AN ADVISE CODE (2). TO ENSURE ADEQUATE AVAILABILITY OF THIS PART ORDERS SHOULD BE LIMITED TO IMMEDIATE NEEDS.

WARRANTY CLAIM INFORMATION

DEALERS ARE TO SUBMIT CLAIMS ON THE CAMPAIGN CARD FURNISHED WITH THE PRINTOUT USING THE FOLLOWING INFORMATION. PARTS WILL BE CREDITED AT DEALER NET, PLUS 30% DEALER HANDLING ALLOWANCE.

OPERATION TIME

V0790 INSTALL NEW GROUND CABLE .2 HR.

.1 HOUR FOR CLERICAL ADMINISTRATION WILL BE ADDED TO THE ABOVE OPERATION.

TO SUBMIT A CLAIM ON A CAR CORRECTED BUT NOT ON YOUR PRINTOUT, USE A YELLOW STRIPE CARD.

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.