CAMPAIGN:BRAKE HOSE MAY NOT MEET MANUFACTURING STANDARDS

SUBJECT: BRAKE HOSE MAY NOT MEET MANUFACTURING STANDARDS

MODEL/YEAR: 1993 BUICK CENTURY R.F HOSE OLDSMOBILE CUTLASS R.F HOSE 1993 CHEVROLET CAVALIER EITHER OR BOTH REAR HOSE PONTIAC SUNBIRD EITHER OR BOTH REAR HOSE

CONDITION:

GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1993 A-BODY AND J-BODY VEHICLES MAY NOT COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD (FMVSS) 106. THE BRAKE HOSE ON THESE VEHICLES WERE MANUFACTURED INCORRECTLY. THESE VEHICLES MAY EXPERIENCE REDUCED BRAKE EFFECTIVENESS AND/OR UNEVEN BRAKING, AND A VEHICLE CRASH COULD OCCUR WITHOUT PRIOR WARNING.

TO PREVENT THESE CONDITIONS FROM OCCURRING, DEALERS ARE TO INSPECT THE BRAKE HOSES AND RECORD THE DATE CODE ON THE HOSE ASSEMBLY. IF THE DATE CODE FALLS WITHIN THE SPECIFIED RANGE, DEALERS ARE TO REPLACE THE BRAKE HOSE ASSEMBLY.

CHEVROLET VEHICLES INVOLVED:

INVOLVED ARE CERTAIN 1993 CAVALIER VEHICLES BUILT WITHIN THE FOLLOWING VIN BREAKPOINTS.

UP TO AND YEAR PLANT CODE BEGINNING INCLUDING

1993 LORDSTOWN "7" P7263974 P7266012

PONTIAC VEHICLES INVOLVED:

INVOLVED ARE CERTAIN 1993 SUNBIRD VEHICLES BUILT WITHIN THE FOLLOWING VIN BREAKPOINTS.

UP TO AND YEAR PLANT BEGINNING INCLUDING

1993 LORDSTOWN P7564725 P7565497

BUICK VEHICLES INVOLVED:

THE FOLLOWING 1993 BUICK CENTURY VEHICLES BUILT AT THE OKLAHOMA CITY ASSEMBLY PLANT ARE INVOLVED:

P6468464 P6468637 P6468691 P6468468 P6468638 P6468700 P6468550 P6468642 P6468703 P6468584 P6468646 P6468705 P6468591 P6468647 P6468710 P6468594 P6468651 P6468725 P6468598 P6468671 P6468726 P6468607 P6468678 P6468731 P6468617 P6468684 P6468735 P6468623 P6468687 P6468740

OLDSMOBILE VEHICLES INVOLVED:

THE FOLLOWING 1993 A-BODY VEHICLES BUILT AT THE OKLAHOMA CITY ASSEMBLY PLANT ARE INVOLVED:

P6405400 P6406706 P6406828 P6406902 P6406928 P6407132 P6407134 P6407138 P6407141 P6407146 P6407150 P6407151 P6407154 P6407155 P6407160 P6407163 P6407166 P6407167 P6407169 P6407171 P6407172 P6407173 P6407182 P6407184 P6407193 P6407195 P6407196 P6407199 P6407201 P6407204 P6407206 P6407208 P6407212 P6407215 P6407216 P6407225 P6407231 P6407232 P6407236 P6407238 P6407240 P6407244 P6407245 P6407246 P6407248 P6407252 P6407254 P6407262 P6407266 P6407270 P6407271 P6407278 P6407279 P6407292 P6407294 P6407295 P6407298 P6407302 P6407304 P6407310 P6407312 P6407314 P6407315 P6407321 P6407323 P6407324 P6407326 P6407327 P6407330 P6407334 P6407340 P6407341 P6407345 P6407346 P6407349 P6407351 P6407355 P6407368 P6407372 P6407380 P6407386 P6407402 P6407408 P6407410 P6407412 P6407415 P6407416 P6407417 P6407422 P6407426 P6407427 P6407428 P6407439 P6407444 P6407446 P6407448 P6407452 P6407455 P6407456 P6407458 P6407459 P6407460 P6407463 P6407469 P6407474 P6407475 P6407476 P6407478 P6407480 P6407483 P6407487 P6407494 P6407495 P6407496 P6407501 P6407502 P6407504 P6407509 P6407510 P6407516 P6407528 P6407533 P6407534 P6407539 P6407540 P6407541 P6407543 P6407552 P6407553 P6407556 P6407558 P6407559 P6407561 P6407566 P6407567 P6407577 P6407578 P6407580 P6407582 P6407587 P6407588 P6407589 P6407590 P6407598 P6407607

SHOULD A QUESTION ARISE CONCERNING THE CAMPAIGN INVOLVEMENT OF A SPECIFIC VEHICLE(S) WITH THE VIN'S LISTED ABOVE, DEALERS SHOULD ACCESS THE VEHICLE INFORMATION SERVICE SYSTEM (V.I.S.S.) FOR VERIFICATION.

INVOLVED VEHICLES HAVE BEEN IDENTIFIED BY VEHICLE IDENTIFICATION NUMBE 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 ADDRES DATA FURNISHED WILL ENABLE DEALERS TO FOLLOW-UP WITH OWNERS INVOLVED I 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 THI LISTING TO THE FOLLOW-UP NECESSARY TO COMPLETE THIS CAMPAIGN. ANY DEALER NOT RECEIVING A COMPUTER LISTING WITH THE CAMPAIGN BULLETIN HAS NO INVOLVED VEHICLES CURRENTLY ASSIGNED.

THIS BULLETIN IS NOTICE TO YOU THAT THE NEW MOTOR VEHICLES INCLUDED IN THIS CAMPAIGN MAY NOT COMPLY WITH THE STANDARD IDENTIFIED ABOVE. UNDE SECTION 108 OF THE NATIONAL TRAFFIC AND MOTOR VEHICLE SAFETY ACT, IT I ILLEGAL FOR A DEALER TO SELL A NEW MOTOR VEHICLE WHICH THE DEALER KNOW DOES NOT COMPLY WITH AN APPLICABLE FEDERAL MOTOR VEHICLE SAFETY STANDARD. AS A CONSEQUENCE, IF YOU SELL ANY OF THESE MOTOR VEHICLES WITHOUT FIRST PERFORMING THE CAMPAIGN CORRECTION, YOUR DEALERSHIP MAY BE SUBJECT TO A CIVIL PENALTY UP TO $1,000 FOR EACH SUCH SALE.

ALL SUBJECT VEHICLES WHICH ARE LISTED ON THE DEALER'S CAMPAIGN PRINTOU WILL REQUIRE CORRECTION AS OUTLINED IN THE SERVICE PROCEDURE SECTION O THIS BULLETIN.

DEALER ACTION

ALL UNSOLD NEW VEHICLES IN DEALERS' POSSESSION AND SUBJECT TO THIS CAMPAIGN MUST BE HELD AND INSPECTED/REPAIRED PER THE SERVICE PROCEDUR OF THIS CAMPAIGN BULLETIN BEFORE OWNERS TAKE POSSESSION OF THESE VEHICLES.

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.

OWNERS OF VEHICLES RECENTLY SOLD FROM YOUR NEW VEHICLE INVENTORY WITH NO OWNER INFORMATION INDICATED ON THE DEALER LISTING ARE TO BE CONTACTED BY THE DEALER, AND ARRANGEMENTS MADE TO MAKE THE REQUIRED CORRECTION ACCORDING TO THE INSTRUCTIONS CONTAINED IN THIS BULLETIN. THIS COULD BE DONE BY MAILING TO SUCH OWNERS A COPY OF THE OWNERS LETTER ACCOMPANYING THIS BULLETIN. CAMPAIGN FOLLOW-UP CARDS SHOULD NO BE USED FOR THIS PURPOSE, SINCE THE OWNER MAY NOT AS YET HAVE RECEIVE THE NOTIFICATION LETTER.

IN SUMMARY, WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN ENTERS YOUR VEHICLE INVENTORY, OR IS IN YOUR DEALERSHIP FOR SERVICE IN THE FUTURE PLEASE TAKE THE STEPS NECESSARY TO BE SURE THE CAMPAIGN CORRECTION HAS BEEN MADE BEFORE SELLING OR RELEASING THE VEHICLE.

SERVICE PROCEDURE

1. POSITION AND RAISE CAR ON FRAME TYPE HOIST. SEE SERVICE MANUAL SECTION 0A

2. INSPECT THE BRAKE HOSE ASSEMBLY AND RECORD THE DATE CODE PRINTED ON THE HOSE ASSEMBLY. SEE FIGURE 1 FOR DATE CODE DESCRIPTION. IF NECESSARY, CLEAN THE HOSE ASSEMBLY USING A RAG AND SOAPY WATER. DO NOT USE A SOLVENT TO CLEAN THE BRAKE HOSE. THIS MAY REMOVE THE DATE CODE. IF THE DATE CODE IS LOCATED ON THE UPPER SURFACE OF THE HOSE ASSEMBLY, IT MAY BE NECESSARY TO USE A MIRROR TO VIEW THE CODE. IF A MIRROR IS USED, BE SURE THAT THE CODE IS RECORDED CORRECTLY.

FIGURE 1 - RIGHT FRONT BRAKE HOSE ASSEMBLY IDENTIFICATION

3. IF THE RECORDED DATE CODE MATCHES ONE OF THE DATE CODES SHOWN BELOW, CONTINUE TO STEP FOUR (4) OF THIS SERVICE PROCEDURE AND REPLACE THE BRAKE HOSE ASSEMBLY. IF THE RECORDED DATE CODE DOES NOT MATCH ONE OF THE DATE CODES SHOWN BELOW, PROCEED TO STEP SEVENTEEN (17) OF THIS SERVICE PROCEDURE.

SUSPECT DATE CODES:

1ST SHIFT 2ND SHIFT 3RD SHIFT

X4023 Y4023 Z4023 X4053 Y4053 Z4053 X4063 Y4063 Z4063 X4073

IMPORTANT:

CLEAN EACH CONNECTION OF ANY LOOSE SCALE, DIRT, OR OTHER DEBRIS BEFOR DISCONNECTING THE JOINT. IT IS IMPORTANT THAT PROPER CARE BE USED TO AVOID CONTAMINATION OF BRAKE FLUID WITH ANY FOREIGN MATERIAL.

4. USING AN 11 MM WRENCH, DISCONNECT THE BRAKE HOSE FITTING (SPECIAL BOLT WITH HOLLOW SHAFT AND CROSS HOLE NEAR HEAD) FROM THE RIGHT FRONT BRAKE CALIPER. SAVE THE BRAKE HOSE FITTING FOR RE- INSTALLATION. REMOVE AND DISPOSE BRAKE HOSE FITTING GASKETS (WASHERS).

5. USING A 12 MM TUBE WRENCH, DISCONNECT THE BRAKE PIPE NUT FROM THE BRAKE HOSE FITTING.

6. USING A SCREWDRIVER OR OTHER APPROPRIATE TOOL, REMOVE THE RETAINING CLIP FROM THE BRAKE HOSE BRACKET. SAVE THE RETAINING CLIP FOR RE-INSTALLATION.

7. USING A 13 MM WRENCH, DISCONNECT THE BRAKE HOSE INTEGRAL CLIP FROM THE STRUT TAB. SAVE THE BOLT FOR RE-INSTALLATION. REMOVE OLD BRAKE HOSE ASSEMBLY. DESTROY OLD HOSE ASSEMBLY TO PREVENT RE- USE AND DISPOSE OF DESTROYED HOSE.

8. SUB-ASSEMBLE ONE (1) BRAKE FITTING GASKET/WASHER TO THE BRAKE HOSE FITTING (SPECIAL BOLT). PLACE THE FITTING-GASKET SUBASSEMBLY THROUGH THE BRAKE HOSE BLOCK FITTING AND PLACE THE SECOND GASKET/WASHER OVER THE END OF THE FITTING/BOLT. LOOSE ASSEMBLE THE BRAKE HOSE FITTING TO THE BRAKE CALIPER.

9. POSITION BRAKE HOSE SUPPORT CLIP TO STRUT TAB AND LOOSE ASSEMBLE USING PREVIOUSLY REMOVED BOLT.

10. POSITION THE END OF THE BRAKE HOSE ASSEMBLY THROUGH THE BRAKE HOS BRACKET AND FINGER START THE BRAKE PIPE NUT TO THE BRAKE HOSE.

11. MAKE SURE THAT THE BRAKE HOSE IS FULLY SEATED AND PROPERLY ALIGNE IN THE BRACKET AND RE-INSTALL THE RETAINING CLIP TO THE BRACKET AND HOSE FITTING.

12. USING A 12 MM TUBE WRENCH, TIGHTEN THE BRAKE PIPE NUT TO 15 N.M (11 LBS.FT).

13. USING AN 11 MM WRENCH, TIGHTEN THE BRAKE HOSE FITTING TO THE BRAK CALIPER TO 44 N.M (32 LBS.FT).

14. USING A 13 MM WRENCH, TIGHTEN THE BRAKE HOSE INTEGRAL CLIP BOLT T 25 N.M (18 LBS.FT).

15. BLEED BRAKE SYSTEM PER SERVICE MANUAL PROCEDURE.

16. VISUALLY CHECK FOR FLUID LEAKS AT ALL CONNECTIONS. IF ANY LEAKS ARE OBSERVED, SLIGHTLY LOOSEN THE INVOLVED JOINT, RE-TIGHTEN TO SPECIFIED TORQUE, AND RE-BLEED THE INVOLVED BRAKE.

17. LOWER VEHICLE.

18. INSTALL CAMPAIGN IDENTIFICATION LABEL.

CAMPAIGN IDENTIFICATION LABEL

EACH LABEL PROVIDES SPACE TO PRINT THE CAMPAIGN NUMBER, AND THE FIVE (5) DIGIT DEALER CODE OF THE DEALER PERFORMING THE CAMPAIGN. INSERT THIS INFORMATION WITH A TYPEWRITER OR BALL-POINT PEN. WHEN INSTALLIN LABEL, CLEAN AND DRY THE SURFACE OF THE RADIATOR SUPPORT TIE BAR AND APPLY THE CAMPAIGN LABEL WHERE IT IS READILY VISIBLE.

PARTS INFORMATION

PARTS REQUIRED TO COMPLETE THIS CAMPAIGN ARE TO BE OBTAINED FROM GENERAL MOTORS SERVICE PARTS OPERATIONS (GMSPO). TO ENSURE THESE PART WILL BE OBTAINED AS SOON AS POSSIBLE, THEY SHOULD BE ORDERED FROM GMSP ON A "C.I.O." ORDER WITH NO SPECIAL INSTRUCTION CODE, BUT ON AN ADVIS CODE (2).

PART NUMBER DESCRIPTION QUANTITY PER VEHICLE

22112744 HOSE ASM-RIGHT FRONT BRAKE 1

10139097 GASKET-BRAKE HOSE TO CALIPER FITTING 2

22111811 HOSE ASSEMBLY REAR BRAKE 1 OR 2

WARRANTY INFORMATION

INSPECT RF BRAKE HOSE ASSY 96 V8153 0.3 0.1 (A-BODY)

INSPECT/REPLACE RF BRAKE HOSE 96 V8154 0.7 0.1 (A-BODY)

INSPECT ONLY BOTH REAR BRAKE HOSES 96 V8150 0.3 0.1 (J-BODY)

INSPECT BOTH REAR BRAKE HOSES, REPLACE ONLY ONE (1) REAR BRAKE HOSE 96 V8151 0.8 0.1 (J-BODY)

INSPECT BOTH REAR BRAKE HOSES AND REPLACE TWO (2) REAR BRAKE HOSES 96 V8152 1.0 0.1 (J-BODY)

PARTS ALLOWANCE: CURRENT DEALER PRICE, PLUS 30% ALLOWANCE FOR HANDLING.

OLDSMOBILE BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS NOT A "DO-IT-YOURSELFER". THEY ARE WRITTEN TO INFORM THESE TECHNICIAN 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 TOOLS, EQUIPMENT, 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 YOU VEHICLE, OR THAT YOUR VEHICLE WILL HAVE THAT CONDITION. SEE YOUR OLDSMOBILE DEALER FOR INFORMATION ON WHETHER YOUR VEHICLE MAY BENEFIT FROM THE INFORMATION.

COPYRIGHT 1993 GENERAL MOTORS CORPORATION, OLDSMOBILE DIVISION. 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.