BRAKE DRAG (INSTALL NEW SERVICE KIT ). Buick Century 1993

---------------------------------------------------------------------- REVISION 11/05/93

THIS BULLETIN IS BEING REISSUED TO RE-EMPHASIZE THAT THIS CONDITION WILL NOT BE CORRECTED BY CHANGING BRAKE SYSTEM COMPONENTS SUCH AS BOOSTER, MASTER CYLINDER, CALIPER, WHEEL CYLINDERS, ETC.

THE ONLY CORRECTION IS TO INSTALL THE GM SERVICE KIT P/N 18021068.

PREVIOUS DIVISIONAL PUBLICATION NUMBERS WERE:

BUICK 93-5-4 OLDSMOBILE 93-T-25 GM OF CANADA 93-5-106 ----------------------------------------------------------------------

SUBJECT: BRAKE DRAG (INSTALL NEW SERVICE KIT)

MODELS: 1993 OLDSMOBILE CUTLASS CIERA/CRUISER 1993 BUICK CENTURY

CONDITION:

SOME OWNERS MAY COMMENT ON THE FOLLOWING:

A. LOSS OF POWER B. VEHICLE SLOWING C. DOWNSHIFT WHEN ATTEMPTING TO MAINTAIN SPEED D. CRUISE CONTROL WILL NOT SET E. OTHER SYMPTOMS OF BRAKE DRAG

CAUSE:

SOME CARS BUILT DURING THE FOLLOWING VIN'S MAY EXHIBIT ONE OR MORE OF THESE CONDITIONS DUE TO A STACK UP VARIATION BETWEEN THE BOOSTER, FRONT OF DASH, DASH MAT, AND BRAKE PEDAL BRACKET DURING INSTALLATION. THIS MAY CAUSE THE BOOSTER PISTON ROD WHICH MATES WITH THE MASTER CYLINDER TO EXTEND BEYOND THE NORMAL SETTING. THE MASTER CYLINDER MAY THEN RETAIN PRESSURE WHICH IN TURN COULD LEAD TO BRAKE DRAG.

NOTE: THIS CONDITION WILL NOT AFFECT THE NORMAL FUNCTIONING OF THE BRAKE LIGHTS NOR THE CRUISE CONTROL BRAKE PEDAL RELEASE.

VIN BREAKPOINTS:

SOP - 1G4AH55NXP6421046 (OKLAHOMA CITY) SOP - 1G3AG54N1P6337108 (OKLAHOMA CITY) SOP - 3G4AG54N3PS609861 (RAMOS ARIZPE)

CORRECTION:

IF A VEHICLE HAS ONE OR MORE OF THE ABOVE SYMPTOMS, INSTALL GM SERVICE KIT 18021068. THIS KIT INCLUDES THE FOLLOWING:

A. TWO PIECE ADJUSTABLE PISTON ROD. B. REVISED REACTION RETAINER C. SILICONE LUBRICANT D. DETAILED INSTALLATION INSTRUCTIONS

NOTE: THE ABOVE CONDITION WILL NOT BE CORRECTED BY CHANGING THE BOOSTER AND/OR MASTER CYLINDER. THE ONLY CORRECTION IS THE INSTALLATION OF THE GM SERVICE KIT 18021068.

PART AVAILABILITY:

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION:

LABOR OPERATION: T1931 LABOR TIME: 0.5 HR.

FIGURES: 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.