INFORMATION ON NEW ENGINE OIL FILTER ADAPTER. Cadillac Concours 1995

SUBJECT: INFORMATION ON NEW ENGINE OIL FILTER ADAPTER AND OIL PRESSURE SWITCH

MODELS: 1995 CADILLAC CONCOURS, ELDORADO, SEVILLE WITH 4.6L ENGINE (VINS 9, Y - RPOS L37, LD8)

1995 OLDSMOBILE AURORA WITH 4.0L ENGINE (VIN C - RPO L47)

NEW OIL FILTER ADAPTERS AND OIL PRESSURE SWITCHES WENT INTO PRODUCTION ON 4.0L AND 4.6L ENGINES JANUARY 18, 1995. FEATURES OF THIS NEW ADAPTER INCLUDE AN ALL ALUMINUM BODY, STEEL PLUG AND LARGER THREADS TO MOUNT THE OIL PRESSURE SWITCH.

THE NEW OIL FILTER ADAPTER MAY BE USED ON ALL MODEL YEAR 4.0L AND 4.6L ENGINES. WHENEVER INSTALLING THESE NEW OIL FILTER ADAPTERS ON ANY 4.0L OR 4.6L ENGINE BUILT PRIOR TO THE ABOVE MENTIONED DATE, ADHERE TO THE FOLLOWING:

1. THE ATTACHING THREADS FOR THE OIL PRESSURE SWITCH HAVE CHANGED FROM A 1/4 INCH TO 3/8 INCH SIZE, THEREFORE, WHEN A NEW OIL FILTER ADAPTER IS USED, A NEW OIL PRESSURE SWITCH WITH THE 3/8 THREADS MUST BE INSTALLED.

2. THE OIL PRESSURE SWITCHES MUST NOT BE USED INTERCHANGEABLY BECAUSE THE G CAR SWITCH IS A COMBINATION SENSOR FOR INSTRUMENT PANEL DISPLAY INFORMATION AND PCM SIGNAL INPUT.

3. THE PART NUMBER WITH AN **ASTERISK** INDICATED MUST BE USED WHENEVER AN OIL FILTER ADAPTER REPLACEMENT IS NECESSARY ON A VEHICLE WITHOUT AN EXTERNAL OIL COOLER PACKAGE. THE OIL FILTER ADAPTERS REMOVED FROM THESE VEHICLES ARE EQUIPPED WITH A "U" SHAPED TUBE. THIS TUBE MAY BE DISCARDED SINCE THE REPLACEMENT ADAPTER IS EQUIPPED WITH A "CAST OVER" PORT AND PLUG WHICH MUST BE INSTALLED BEFORE INSTALLING ON THE ENGINE.

PARTS INFORMATION:

REFER TO THE FOLLOWING PART NUMBERS WHEN ORDERING THE NEW OIL FILTER ADAPTER AND OIL PRESSURE SWITCHES.

DESCRIPTION PART NUMBER

OIL FILTER ADAPTER

4.6L 12555005 4.0L 12555005 4.6L NON EXTERNAL COOLER **12555007

OIL PRESSURE SWITCH G CAR 3547417 OIL PRESSURE SWITCH E/K/K SPECIAL 3546924

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION

FOR VEHICLES REPAIRED UNDER WARRANTY USE:

LABOR OPERATION: J0960 LABOR TIME: 0.6 HRS WHENEVER REPLACEMENT OF THE OIL FILTER ADAPTER IS NECESSARY.

FIGURES: 0 ATTACHMENTS: 0

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.