INFO. ON A/C TOOL AND EQUIPMENT MAINTENANCE. Oldsmobile Eighty Eight 1991

REVISION: 04/13/97 DIVS INVL 1 2 3 4 5 6 7

THIS BULLETIN IS BEING REVISED TO ADD THE 1997 MODEL YEAR AND TO UPDATE "MAINTENANCE/TUNE-UP" INFORMATION. PLEASE DISCARD CORPORATE BULLETIN NUMBER 63-12-08 (SECTION 1 - HVAC). ----------------------------------------------------------------------

SUBJECT: INFORMATION ON A/C TOOL AND EQUIPMENT MAINTENANCE; TUNE-UP SPRING REMINDER

MODELS: 1997 AND PRIOR PASSENGER CARS AND TRUCKS

YOUR A/C TOOLS AND EQUIPMENT WERE BUILT FOR LONG USE, BUT CERTAIN PARTS WERE DESIGNED TO NEED PERIODIC SERVICE. INADEQUATE MAINTENANCE CAN SIGNIFICANTLY REDUCE THE PERFORMANCE ON THE FOLLOWING TOOLS AND EQUIPMENT:

J 39851 PUREGUARD (R12) J 38100, J38750-A ACR3 (R12) J 38100-30 ACR3 30 LB. REPLACEMENT TANK (R12) J 39400 ELECTRONIC LEAK DETECTOR (R12 & R134A) J 39500 ACR4 (R134A) J 41810 PUREGUARD 2 (R134A)

CONTACT KENT-MOORE AT 1-800-345-2233 FOR ASSISTANCE OR TO ORDER THE ABOVE TOOLS.

A/C MAINTENANCE / TUNE-UP QUICK REFERENCE CHART ========================

NOTICE:

WHEN USING ANY R12 OR R134A RECOVERY STATION EQUIPPED WITH A REFRIGERANT MONITOR (PUREGUARD OR PUREGUARD 2), ALWAYS INJECT OIL AND CHARGE REFRIGERANT INTO VEHICLES THROUGH THE HIGH SIDE ONLY. INJECTING OIL OR CHARGING REFRIGERANT THROUGH THE LOW SIDE WILL DAMAGE THE PUREGUARD AND PUREGUARD 2.

IMPORTANT:

NEVER OPEN LOW SIDE MANIFOLD VALVE WHEN INJECTING OIL.

REFRIGERANT TOOLS & RECOMMENDED SERVICE TYPE EQUIPMENT MAINTENANCE/TUNE-UP PERIOD =====================================================================

R12 J 39851 TO ENSURE UNINTERRUPTED PUREGUARD SERVICE OF YOUR PUREGUARD, REMEMBER TO:

CHECK AND DRAIN OIL. THE WEEKLY DRAIN PORT IS LOCATED ON THE REAR OF THE UNIT. ---------------------------------------------------------------------

R12 J 38100 TO ENSURE EFFICIENT OPERATION YEARLY, ACR3 OF YOUR ACR3, USE J 38100 OR WHEN RECOVERY, MAINT. THIS KIT INCLUDES A PERFORMANCE RECYCLING REPLACEMENT R12 FILTER/DRYER DEGRADES. CART ELEMENT AND MOISTURE INDICATOR. DRAIN OIL IMPORTANT: IF AN EXTENSION FILTER CORD IS REQUIRED, USE 12 GAUGE REGULARLY. OR HEAVIER. ----------------------------------------------------------------------

R12 J 38100-30 EVERY COOLING SEASON, REMEMBER EVERY 5 ACR3 30 LB. TO CHECK THE RETEST DATE ON YEARS, LOOK REPLACEMENT YOUR R12 RECOVERY TANKS (TANKS AT RETEST TANK MUST BE TESTED EVERY 5 YEARS DATE ON FOR LEAKAGE). USE J 38100-30 TANK. REPLACEMENT TANK AS AN ECONOMICAL ALTERNATIVE TO TANK RETESTING. ----------------------------------------------------------------------

R12 J 34119 TO ENSURE EFFICIENT OPERATION YEARLY, HIGH VACUUM OF YOUR VACUUM PUMP, USE OR WHEN PUMP OR J 26695-5 PREMIUM HIGH VACUUM PERFORMANCE EQUIVALENT PUMP OIL (ONE QUART). DEGRADES. ----------------------------------------------------------------------

R12 J 41709 IF AN A/C LEAK CANNOT BE FOUND AS REQUIRED TRACER DYE WITH AN ELECTRONIC LEAK INJECTOR DETECTOR, USE THE FOLLOWING INJECT DYE APPROVED ALTERNATIVE: J 41709 INTO DYE INJECTOR, USED WITH VEHICLES FLORESCENT DYE J 39475 AND THROUGH J42220 HIGH INTENSITY BLACK HIGH SIDE LIGHT OR GM P/N 12377979. ONLY. ----------------------------------------------------------------------

R12 J 39400 TO ENSURE CONSISTENT AND YEARLY, AND ELECTRONIC RELIABLE OPERATION OF YOUR OR WHEN R134A LEAK ELECTRONIC LEAK DETECTOR, USE PERFORMANCE DETECTOR J 39400-TUNEUP-A. THIS KIT DEGRADES. INCLUDES REPLACEMENT FILTERS, AIR FLOW BALLS, CALIBRATION REFERENCE BOTTLE, SENSOR, PROBE TIP PROTECTORS, AND CLEANING STICKS. ----------------------------------------------------------------------

R134A J 39500 TO ENSURE EFFICIENT OPERATION YEARLY, ACR4 OF YOUR ACR4, USE J 39500 OR WHEN RECOVERY, MAINT. THIS KIT INCLUDES PERFORMANCE RECYCLING, REPLACEMENT R134A FILTER/DRYER DEGRADES. RECHARGING CARTRIDGE, PACKAGE OF COUPLER CART O-RINGS, AND A QUART OF VACUUM CHANGE PUMP OIL. VACUUM PUMP OIL EVERY IMPORTANT: IF AN EXTENSION 10 HOURS OF CORD IS REQUIRED, USE 12 GAUGE OPERATION. OR HEAVIER. ----------------------------------------------------------------------

R134A J 41459 IF AN A/C LEAK CANNOT BE FOUND AS REQUIRED TRACER WITH AN ELECTRONIC LEAK DYE DETECTOR, USE THE FOLLOWING INJECT DYE INJECTOR APPROVED ALTERNATIVE: J 41459 INTO DYE INJECTOR, USED WITH VEHICLES FLORESCENT DYE J41447 OR GM P/N THROUGH 12346303, AND J 42220 HIGH HIGH SIDE INTENSITY BLACK LIGHT OR GM P/N ONLY. 12377979. ----------------------------------------------------------------------

R12 J 41995 APPROVED ALTERNATIVE TO YEARLY, AND ELECTRONIC J 39400 EXISTING LEAK OR WHEN R134A LEAK DETECTOR. (REQUIRES YEARLY SELF TEST DETECTOR MAINTENANCE). INDICATES. ----------------------------------------------------------------------

R134A J 41810 TO ENSURE UNINTERRUPTED SERVICE PUREGUARD 2 OF YOUR PUREGUARD 2, REMEMBER TO:

1. REPLACE TOP PANEL FILTER 1. REPLACE (USE J 41810-1 FILTER KIT). TOP PANEL FILTER WHEN FILTER TURNS RED.

2. CHANGE RECOVERY STATION 2. CHANGE VACUUM PUMP OIL AND ALWAYS VACUUM PUMP MAINTAIN THE CORRECT OIL OIL EVERY LEVEL. ALWAYS CHECK OIL 10 HOURS LEVEL WHILE PUMP IS RUNNING. OF PUMP OPERATION. IMPORTANT: IF AN EXTENSION CHECK PUMP CORD IS REQUIRED, USE 12 GAUGE OIL LEVEL OR HEAVIER. ON EVERY VEHICLE. ----------------------------------------------------------------------

PARTS INFORMATION:

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

FIGURES: 00 ATTACHMENTS: 00

Object Number: 78688 Size: FS

Object Number: 79809 Size: FS

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.