CAMPAIGN: LEFT FRONT BRAKE HOSE INTERFERENCE

SUBJECT: LEFT FRONT BRAKE HOSE

MODELS AFFECTED: 1988 BUICK REGAL

DEFECT INVOLVED

GENERAL MOTORS HAS DETERMINED THAT A DEFECT WHICH RELATES TO MOTOR VEHICLE SAFETY MAY EXIST IN A SMALL NUMBER OF 1988 BUICK REGAL MODEL VEHICLES. WHEN THE LEFT FRONT BRAKE HOSE WAS ASSEMBLED TO THE BRAKE HOSE BRACKET, THE COMPONENTS MAY HAVE BEEN TWISTED. THIS CONDITION COULD ALLOW THE BRAKE HOSE TO CONTACT THE FENDER LINING/RAIL AREA. OVER TIME, THIS CONTACT COULD ALLOW THE BRAKE HOSE TO WEAR THROUGH, CAUSING A LOSS OF BRAKE FLUID AND A PARTIAL LOSS OF BRAKING CAPABILITY. PART OF THE BRAKE SYSTEM WILL STILL WORK AND ALLOW THE VEHICLE TO BE STOPPED, BUT OVER A GREATER DISTANCE. A PARTIAL LOSS OF BRAKING CAPABILITY AT A TIME WHEN MINIMUM STOPPING DISTANCE IS REQUIRED COULD RESULT IN A VEHICLE CRASH WITHOUT PRIOR WARNING.

TO PREVENT THIS CONDITON FROM OCCURRING, THE LEFT FRONT BRAKE HOSE WILL BE INSPECTED FOR PROPER INSTALLATION AND REPLACED AS REQUIRED.

VEHICLES INVOLVED

INVOLVED ARE CERTAIN 1988 BUICK REGAL MODEL VEHICLES PRODUCED WITHIN THE FOLLOWING VIN BREAKPOINTS:

PLANT FROM THROUGH AND INCLUDING

OSHAWA J1448150 J1457141

DEALER CAMPAIGN RESPONSIBILITY

DEALERS ARE TO SERVICE ALL VEHICLES SUBJECT TO THIS CAMPAIGN AT NO CHARGE TO OWNERS, REGARDLESS OF MILEAGE, AGE OF VEHICLE, OR OWNERSHIP FROM THIS TIME FORWARD.

WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN IS TAKEN INTO YOUR NEW OR USED VEHICLE INVENTORY, OR IT IS IN YOUR DEALERSHIP FOR SERVICE IN THE FUTURE, YOU SHOULD 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 CORRECTION 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 INVOLVED DEALERS WITH THE CAMPAIGN BULLETIN. OWNER NAME AND ADDRESS DATA FURNISHED WILL ENABLE DEALERS TO FOLLOW UP WITH OWNERS INVOLVED IN THIS CAMPAIGN.

THESE 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 FORM 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).

NOTICE: IT IS ESTIMATED THAT ONLY 1.5% (135) OF THE APPROXIMATELY 8,328 VEHICLES INVOLVED IN THIS CAMPAIGN WILL REQUIRE BRAKE HOSE REPLACEMENT. TO PREVENT PARTS SHORTAGES, DEALER ORDERS WILL BE LIMITED TO ONE (1) HOSE ASSEMBLY, BRACKET AND RETAINER PER ORDER.

PART NUMBER DESCRIPTION QUANTITY/VEHICLE

14103983 HOSE ASSEMBLY - FRONT BRAKE (L.H.) 1, AS REQUIRED 10062919 BRACKET - FRONT BRAKE HOSE (L.H.) 1, AS REQUIRED 22527167 RETAINER - FRONT BRAKE HOSE 1, AS REQUIRED 14000172 WASHER - BRAKE HOSE TO CALIPER 2, AS REQUIRED (COPPER)

SERVICE PROCEDURE

1. INSPECT LEFT FRONT BRAKE HOSE FOR A MISINDEXED (TWISTED) CONDITION. THE VEHICLE MUST BE SUPPORTED ON THE WHEEL/TIRE ASSEMBLIES (EITHER ON THE FLOOR, OVER THE PIT, OR ON A PLATFORM TYPE HOIST SUCH AS USED FOR ALIGNMENT MACHINES) WITH FRONT WHEELS POINTING STRAIGHT AHEAD.

VISUALLY INSPECT THE LEFT SIDE (DRIVER SIDE) BRAKE HOSE. IF THE HOSE IS CONTACTING THE FENDER LINING/RAIL AREA (SEE ILLUSTRATION ILLUSTRATION 1), REPLACE THE HOSE, BRACKET, RETAINING CLIP AND WASHERS, PER PAGES 5-10, AND 11 OF THE 1988 BUICK REGAL SERVICE MANUAL.

NOTICE: IF A HOSE REQUIRES REPLACEMENT, THE FITTING MUST BE PROPERLY ALIGNED TO THE BRACKET ATTACHING HOLE (SEE ILLUSTRATION 2) TO OBTAIN PROPER HOSE ROUTING PRIOR TO INSTALLATION OF THE RETAINING CLIP.

2. INSTALL CAMPAIGN IDENTIFICATION LABEL.

CAMPAIGN IDENTIFICATION LABEL

EACH VEHICLE CORRECTED IN ACCORDANCE WITH THE INSTRUCTIONS OUTLINED IN THIS PRODUCT CAMPAIGN BULLETIN WILL REQUIRE A "CAMPAIGN IDENTIFICATION LABEL". EACH LABEL PROVIDES A SPACE TO INCLUDE THE FIVE (5) DIGIT DEALER CODE OF THE DEALER PERFORMING THE CAMPAIGN SERVICE. THIS INFORMATION MAY BE INSERTED WITH A TYPEWRITER OR A BALLPOINT PEN.

EACH "CAMPAIGN IDENTIFICATION LABEL" IS TO BE LOCATED ON THE RADIATOR CORE SUPPORT IN AN AREA WHICH WILL BE VISIBLE WHEN THE VEHICLE IS BROUGHT IN FOR PERIODIC SERVICING BY THE OWNER.

APPLY "CAMPAIGN IDENTIFICATION LABEL" ONLY ON A CLEAN DRY SURFACE.

(APPLY LABEL)

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 INSPECT LEFT FRONT BRAKE HOSE ONLY - - - 96 V4790 0.3 0.1 ---

O INSPECT AND REPLACE LEFT FRONT BRAKE HOSE 5 14103983 ** 96 V4791 1.0 0.1 ---

* CAMPAIGN ADMINISTRATIVE ALLOWANCE **THE "PARTS ALLOWANCE" SHOULD BE THE SUM TOTAL OF THE CURRENT GMSPO DEALER NET PRICE, PLUS 30% OF ALL PARTS REQUIRED FOR THE REPAIR.

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.