FRT. STRUT BEARINGS MAY CAUSE MEMORY STEER (REPLACE BEARING). Buick Skylark 1992

REVISION 06/02/92

REVISED TO ADD A STATEMENT CLARIFYING BOLT USAGE WHEN INSTALLING STRUT ON CAR IN STEP #7 OF CORRECTION SECTION.

REVISION 04/20/93

THIS BULLETIN IS BEING REVISED TO ADD THE 1993 MODEL YEAR AND REVISE PART NUMBERS (STRUT MOUNT ASSEMBLIES TO BE REPLACED INSTEAD OF JUST THE UPPER STRUT MOUNT BEARING) ----------------------------------------------------------------------

CONDITION:

========== ON A SMOOTH, FLAT ROAD, THE VEHICLE MAY EXHIBIT A TYPE OF LEAD OR PULL CONDITION. THIS WOULD BE DIRECTLY FOLLOWING THE COMPLETION OF A TURNING MANEUVER. WHEN THE STEERING WHEEL IS RETURNED TO A STRAIGHT AHEAD POSITION, THE VEHICLE MAY TEND TO LEAD OR PULL IN THE LAST DIRECTION TURNED. THIS IS KNOWN AS "MEMORY STEER". THIS CONDITION IS ALWAYS NOTED AS BEING IN THE SAME DIRECTION AS THE LAST TURNING MANEUVER.

CAUSE:

====== THE UPPER STRUT MOUNTING BEARING MAY BE STICKING OR BINDING WHICH MAY CAUSE A PRELOAD ON THE STRUT. THIS PRELOAD MAY CAUSE THE VEHICLE TO MOVE IN THE LAST DIRECTION TURNED, THUS CAUSING "MEMORY STEER".

CORRECTION:

=========== REPLACE BOTH THE UPPER STRUT MOUNT ASSEMBLIES WITH THE FOLLOWING, (2 PER VEHICLE, RIGHT AND LEFT):

SERVICE PART NUMBER APPLICATION =================== ===========

1. CHEVROLET ========= 22145610 (GREEN) FE1 & FE2 SUSP., LHO ENGINE 22145615 (PINK) FE1 & FE2 SUSP., LN2 ENGINE 22145615 (PINK) FE7 SUSPENSION

2. PONTIAC ======= 22145610 (GREEN) FE1 & FE3 SUSPENSIONS

3. OLDSMOBILE ========== 22145610 (GREEN) FE1 SUSPENSION 22145610 (GREEN) FE3 WITHOUT FX3 SUSPENSION 22145613 (GREEN/BROWN) FE3 WITH FX3 SUSPENSION

4. BUICK ====== 22145610 (GREEN) FE1 & FE2 SUSPENSIONS 22145613 (GREEN/BROWN) FE3 SUSPENSION

1. REFER TO TECHNICAL BULLETIN, CORPORATE REFERENCE #073002R, FOR PROPER DIAGNOSIS. IF MEMORY STEER IS FOUND, PROCEED TO NEXT STEP.

2. REMOVE BOTH STRUT ASSEMBLIES FROM CAR, REFER TO SECTION 3C IN SERVICE MANUAL.

3. DISASSEMBLE STRUT, REFER TO SECTION 3C IN THE SERVICE MANUAL.

4. INSTALL NEW STRUT MOUNT ASSEMBLY.

5. REASSEMBLE STRUT.

6. INSTALL STRUT ON CAR, DO NOT INTERCHANGE TOP STRUT BOLT AND BRAKE HOSE BRACKET BOLT! SHORT BOLT MUST GO IN TOP OF STRUT MOUNT.

7. CHECK FRONT WHEEL ALIGNMENT, ADJUST IF NECESSARY.

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

LABOR OPERATION NUMBER: E-3927 LABOR TIME: 1.4

Object Number: 85879 Size: MF

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.

CONDITION ========= ON A SMOOTH, FLAT ROAD THE VEHICLE MAY EXHIBIT A TYPE OF LEAD OR PULL CONDITION. THIS WOULD BE DIRECTLY FOLLOWING THE COMPLETION OF A TURNING MANEUVER. WHEN THE STEERING WHEEL IS RETURNED TO A STRAIGHT AHEAD POSITION, THE VEHICLE MAY TEND TO LEAD OR PULL IN THE LAST DIRECTION TURNED. THIS IS KNOWN AS "MEMORY STEER". THIS CONDITION IS ALWAYS NOTED AS BEING IN THE SAME DIRECTION AS THE LAST TURNING MANEUVER.

CAUSE ===== THE UPPER STRUT MOUNTING BEARING MAY BE STICKING OR BINDING WHICH MAY CAUSE A PRELOAD ON THE STRUT. THIS PRELOAD MAY CAUSE THE VEHICLE TO MOVE IN THE LAST DIRECTION TURNED, THUS CAUSING "MEMORY STEER".

CORRECTION ==========

REPLACE THE UPPER STRUT MOUNTING BEARING WITH NEW BEARING P/N 908552 BY USING THE FOLLOWING PROCEDURE:

1. REFER TO TECHNICAL BULLETIN, CORPORATE REFERENCE #073002R, FOR PROPER DIAGNOSIS. IF MEMORY STEER IS FOUND, PROCEED TO THE NEXT STEP.

2. REMOVE BOTH STRUT ASSEMBLIES FROM THE CAR, REFER TO SECTION 3C IN THE SERVICE MANUAL.

3. DISASSEMBLE STRUT, REFER TO SECTION 3C IN THE SERVICE MANUAL.

4. REMOVE UPPER STRUT BEARING BY PRESSING THE OLD BEARING OUT OF THE TOP MOUNT ASSEMBLY.

5. INSTALL NEW BEARING INTO THE TOP MOUNT ASSEMBLY USING HAND PRESSURE.

6. REASSEMBLE STRUT.

7. INSTALL STRUT ON CAR.

NOTE: WHEN INSTALLING STRUT ON CAR, DO NOT INTERCHANGE THE TOP STRUT BOLT AND THE BRAKE HOSE BRACKET BOLT. THE SHORT BOLT MUST GO IN THE TOP OF THE STRUT.

8. CHECK FRONT WHEEL ALIGNMENT, ADJUST IF NECESSARY.

PART INFORMATION ================ PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

LABOR INFORMATION ================= LABOR OPERATION NUMBER E-3937 LABOR TIME: 1.6 HOURS ADD TIME : .1 HOUR WITH LOCKING WHEEL COVERS/NUTS (ONE OR ALL).

Object Number: 85879 Size: MF

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 T 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.