CAMPAIGN: POWER STEERING PUMP PULLEY MAY CRACK

GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1984 CHEVROLET CORVETTES ARE EQUIPPED WITH POWER STEERING PUMP PULLEYS WHICH MAY CRACK AT THE OUTER EDGE. CONTINUED OPERATION MAY CAUSE THE PULLEY TO BREAK, RESULTING IN LOSS OF THE DRIVE BELT. IF THE PULLEY CRACKS, VEHICLE OCCUPANTS SHOULD BE ALERTED BY A RATTLING SOUND COMING FROM THE ENGINE COMPARTMENT. TO PREVENT THE POSSIBILITY OF THIS CONDITION OCCURRING, IT WILL BE NECESSARY TO INSTALL A NEW POWER STEERING PULLEY ON ALL INVOLVED VEHICLES IN ACCORDANCE WITH THE INSTRUCTIONS OUTLINED IN THIS BULLETIN. PARTS INFORMATION POWER STEERING PUMP PULLEY, P/N 14055114, REQUIRED TO COMPLETE THIS CAMPAIGN WILL BE SHIPPED DIRECTLY TO THE DEALERS' SERVICE MANAGER FROM CHEVROLET CENTRAL OFFICE. PARTS QUANTITIES WILL BE DETERMINED BY THE NUMBER OF VEHICLES IDENTIFIED ON THE COMPUTER LIST FURNISHED EACH INVOLVED DEALER WITH THE CAMPAIGN BULLETIN. DEALERS ARE TO INSTALL THESE PULLEYS ONLY ON VEHICLES WITHIN THE PARAMETERS OUTLINED IN THIS BULLETIN. PART NUMBER QUANTITY DESCRIPTION 14055114 1 PER/VEH. POWER STEERING PUMP PULLEY PARTS ARE NOT TO BE ORDERED OR RETURNED TO WDDGM FOR CREDIT. BECAUSE OF THE LIMITED NUMBER OF PARTS AVAILABLE AT THE OUTSET OF THIS CAMPAIGN, IT WILL INITIALLY BE NECESSARY TO PRORATE LESS THAN THE TOTAL DEALER REQUIREMENT. SERVICE PROCEDURE. 1. OPEN HOOD. 2. RELIEVE TENSION ON BELT TENSIONER WITH 1/2" BREAKER BAR AND REMOVE SERPENTINE DRIVE BELT. 3. REMOVE POWER STEERING PUMP PULLEY AS REFERENCED IN FIGURES 1 AND 2. 4. INSTALL PULLER JAWS AND RETAINER SLEEVE AS SHOWN IN FIGURE 1. 5. REMOVE PULLEY BY HOLDING PILOT BOLT AND TURNING NUT COUNTER CLOCKWISE. (REFER FIGURE 2). 6. FOR PULLEY INSTALLATION, PLACE PULLEY ON END OF PUMP SHAFT AND INSTALL TOOL AS SHOWN IN FIGURE 3. BE SURE PILOT BOLT BOTTOMS IN SHAFT BY TURNING NUT TO THE TOP OF THE PILOT BOLT. 7. INSTALL PULLEY BY HOLDING PILOT BOLT AND TURNING NUT CLOCKWISE. (REFER FIGURE 4).

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.