CAMPAIGN: ANTI LOCK BRAKE HYDRAULIC MOUNTING BOLT
SUBJECT: ANTI-LOCK HYDRAULIC UNIT MOUNTING BOLTS
MODELS AFFECTED: 1987-88 LESABRES WITH ANTI-LOCK BRAKES (JM4)
CONDITION
GENERAL MOTORS HAS DETERMINED THAT A DEFECT WHICH RELATES TO MOTOR VEHICLE SAFETY MAY EXIST IN SOME 1987 AND 1988 BUICK LESABRE MODELS EQUIPPED WITH ANTI-LOCK BRAKE SYSTEM (JM4). INVOLVED VEHICLES MAY HAVE BEEN ASSEMBLED WITH LOW TORQUE OF THE BRAKE HYDRAULIC UNIT MOUNTING BOLTS. THIS CONDITION COULD CAUSE INCREASED BRAKE PEDAL TRAVEL AND/OR POOR PEDAL FEEL IF THE ATTACHMENT LOOSENS. IN ADDITION, WITH TIME, THIS CONDITION COULD LEAD TO SEPARATION OF THE BRAKE HYDRAULIC UNIT FROM ITS MOUNTING BRACKET. SEPARATION WOULD RESULT IN LOSS OF BRAKE FUNCTION AND COULD RESULT IN A VEHICLE CRASH WITHOUT PRIOR WARNING.
DEALER ACTION
TO CORRECT THIS CONDITION, DEALERS ARE TO REPLACE THE HYDRAULIC UNIT MOUNTING BOLTS ON ALL VEHICLES INVOLVED ACCORDING TO THE INSTRUCTIONS IN THE TECHNICAL PROCEDURE SECTION OF THIS BULLETIN.
VEHICLES INVOLVED
CERTAIN 1987 AND 1988 LESABRES EQUIPPED WITH ANTI-LOCK BRAKES (JM4) WITHIN THE FOLLOWING VEHICLE BREAKPOINTS:
YEAR PLANT FROM THROUGH AND INCLUDING
1987 BUICK CITY HH400004 HH554313 1988 BUICK CITY JH400004 JH462063
DEALER CAMPAIGN RESPONSIBILITY
DEALERS ARE TO SERVICE ALL VEHICLES INVOLVED IN THIS CAMPAIGN AT NO CHARGE TO OWNERS, REGARDLESS OF MILEAGE, AGE OF VEHICLE, OR OWNERSHIP. WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN IS TAKEN INTO YOUR NEW OR USED CAR INVENTORY, DEALERS ARE TO TAKE THE STEPS NECESSARY TO BE SURE THE CAMPAIGN CORRECTION HAS BEEN MADE BEFORE RESELLING OR RELEASING THE VEHICLE.
OWNERS OF VEHICLES RECENTLY SOLD FROM YOUR NEW VEHICLE INVENTORY ARE TO BE CONTACTED BY THE DEALER AND ARRANGEMENTS MADE TO MAKE THE REQUIRED MODIFICATION ACCORDING TO INSTRUCTIONS CONTAINED IN THIS BULLETIN.
DEALER MATERIAL
IF YOUR DEALERSHIP HAS VEHICLES INVOLVED IN THIS CAMPAIGN, YOU WILL RECEIVE THE FOLLOWING ITEMS:
- LISTING OF ALL VEHICLES INVOLVED IN THIS CAMPAIGN SHIPPED TO YOUR DEALERSHIP.
- ONE (1) CAMPAIGN IDENTIFICATION LABEL PER VEHICLE INVOLVED.
INVOLVED VEHICLES HAVE BEEN IDENTIFIED BY VEHICLE IDENTIFICATION NUMBER COMPUTER LISTINGS. COMPUTER LISTINGS CONTAIN THE COMPLETE VEHICLE IDENTIFICATION NUMBER, OWNER NAME AND ADDRESS DATA, AND ARE FURNISHED TO THE INVOLVED DEALERS WITH THE CAMPAIGN BULLETIN. OWNER NAME AND ADDRESS DATA WILL ENABLE DEALERS TO FOLLOWUP WITH OWNERS INVOLVED IN THIS CAMPAIGN.
THESE COMPUTER LISTINGS MAY CONTAIN OWNER NAMES AND ADDRESSES OBTAINED FROM STATE MOTOR VEHICLE REGISTRATION RECORDS. THE USE OF SUCH MOTOR VEHICLE REGISTRATION DATA FOR ANY OTHER PURPOSE IS A VIOLATION OF LAW IN SEVERAL STATES. ACCORDINGLY, YOU ARE URGED TO LIMIT THE USE OF THIS LISTING TO THE FOLLOWUP NECESSARY TO COMPLETE THIS CAMPAIGN.
ANY DEALER NOT RECEIVING A COMPUTER LISTING WITH THE CAMPAIGN BULLETIN HAS NO INVOLVED VEHICLES CURRENTLY ASSIGNED.
OWNER NOTIFICATION
OWNERS OF VEHICLES INVOLVED IN THIS CAMPAIGN WILL BE NOTIFIED BY BUICK MOTOR DIVISION (SEE COPY OF OWNER LETTER INCLUDED WITH THIS BULLETIN).
CHANGE OF OWNER INFORMATION
DEALERS ARE TO USE THE DEALER COMMUNICATION SYSTEM (DCS) TO PROVIDE BUICK MOTOR DIVISION WITH SUBSEQUENT BUICK OWNER INFORMATION. BY REPORTING A CHANGE OF OWNER NAME OR ADDRESS OF A VEHICLE IN CAMPAIGN STATUS OVER THE DCS, THE NEED TO SEND A CVAR FOR THAT VEHICLE IS ELIMINATED. TERMINAL INPUT INSTRUCTIONS ARE COVERED IN THE DCS MANUAL UNDER SECTION 9, PAGE 9-J01A AND B.
PARTS INFORMATION
PARTS REQUIRED TO COMPLETE THIS CAMPAIGN ARE TO BE OBTAINED FROM GENERAL MOTORS SERVICE PARTS OPERATIONS (GMSPO). TO ENSURE THESE PARTS WILL BE OBTAINED AS SOON AS POSSIBLE, THEY SHOULD BE ORDERED FROM GMSPO ON A C.I.O. ORDER, WITH NO SPECIAL INSTRUCTION CODE, BUT ON AN ADVISE CODE (2).
PART NUMBER DESCRIPTION QUANTITY/VEHICLE
25525687 BOLT - HYDRAULIC UNIT MOUNTING 2
TECHNICAL PROCEDURE
1. RAISE HOOD, INSTALL LEFT FENDER COVER.
2. REMOVE INBOARD MOUNTING BOLT (SEE ILLUSTRATION) AND INSTALL NEW BOLT, PART NUMBER 25525687. TORQUE TO 50 N.M (37 LB. FT.)
3. REPEAT STEP 2 FOR OUTBOARD MOUNTING BOLT.
4. REMOVE FENDER COVER, INSTALL CAMPAIGN LABEL, AND CLOSE HOOD.
CAMPAIGN IDENTIFICATION LABEL INSTALLATION
EACH LABEL PROVIDES A SPACE TO INCLUDE THE CAMPAIGN NUMBER, THE FIVE (5) DIGIT DEALER CODE OF THE DEALER PERFORMING THE CAMPAIGN SERVICE, AND THE DATE VEHICLE WAS CAMPAIGNED. THIS INFORMATION MAY BE INSERTED WITH A TYPEWRITER OR BALLPOINT PEN. WHEN INSTALLING LABEL, CLEAN THE SURFACE OF THE RADIATOR SUPPORT TIE BAR AND APPLY THE CAMPAIGN LABEL WHERE IT IS READILY VISIBLE.
DISPOSITION OF PARTS
REPLACED PARTS MUST BE HELD FOR DISPOSITION BY BUICK ZONE OR BRANCH CONTACT PERSONNEL. PARTS MUST HAVE A CLAIM TAG ATTACHED SHOWING THE REPAIR ORDER AND THE VIN OF THE VEHICLE FROM WHICH THEY WERE REMOVED.
WARRANTY INFORMATION
FAILED OTHER SUBLET PART PART PARTS FAILURE LABOR LABOR LABOR DEALER OPER COUNT NUMBER ALLOW CODE OP NO HOURS HOURS* MTL TWG
O REPLACE HYDRAULIC UNIT MOUNTING BOLTS 2 25525687 ** 96 V4670 .2 .1 --
* 0.1 HOUR ADMINISTRATION. ** LIST CURRENT DEALER PRICE OF 2 BOLTS, PLUS 30 PER CENT.
COPYRIGHT 1988 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED. .
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.
