CAMPAIGN: AUX. REAR SPRING LUMINA EURO W/FE2 SUSPENSION

DEFECT INVOLVED

GENERAL MOTORS HAS BEEN DETERMINED THAT CERTAIN 1991 CHEVROLET LUMINA MODEL VEHICLES EQUIPPED WITH FE2 SUSPENSIONS AND BUILT AT OSHAWA PLANT ASSEMBLED WITHOUT AUXILIARY REAR SPRINGS. THIS CONDITION MAY CAUSE TH INVOLVED VEHICLES TO HAVE A "MUSHY" OR "UNDULATING" RIDE. THE HANDLIN THESE VEHICLES WILL NOT BE AFFECTED.

TO CORRECT THIS CONDITION, DEALERS ARE TO INSTALL THE MISSING AUXILIAR SPRINGS AS INSTRUCTED IN THE SERVICE PROCEDURE SECTION BELOW.

OWNER NOTIFICATION

OWNERS WILL BE NOTIFIED OF THIS CAMPAIGN ON THEIR VEHICLES BY CHEVROLE DIVISION (SEE COPY OF OWNER LETTER INCLUDED WITH THIS DCS).

VEHICLES INVOLVED

THE VEHICLE IDENTIFICATION NUMBERS (VIN'S) FOR THE INVOLVED VEHICLES A LISTED BELOW:

VIN DEALER VIN DEALER

2G1WN54T6M9164404 11-485 2G1WN54T3M9164411 11-317 2G1WN54T2M9164416 44-007 2G1WN54T5M9164426 00-502 2G1WN54T0M9164432 08-295 2G1WN54T4M9164434 06-445 2G1WN54T1M9164441 44-522 2G1WN54T8M9164453 11-224 2G1WN54TXM9164454 02-259 2G1WN54T1M9164455 32-503 2G1WN54T4M9164465 19-000 2G1WN54T8M9164467 08-217 2G1WN54T5M9164474 44-529 2G1WN54T7M9164475 20-168 2G1WN54T4M9164479 15-148 2G1WN54T4M9164482 11-485 2G1WN54T3M9164487 10-531 2G1WN54T3M9164490 26-348 2G1WN54T7M9164508 20-178 2G1WN54T5M9164510 44-011 2G1WN54T9M9164512 11-224 2G1WN54T4M9164515 14-454 2G1WN54T3M9164523 11-224 2G1WN54T0M9164530 17-466 2G1WN54T4M9164532 20-330 2G1WN54T6M9164533 08-217 2G1WN54TXM9164535 08-217 2G1WN54T5M9164538 44-328 2G1WN54T7M9164542 04-340 2G1WN54T8M9164548 04-698 2G1WN54TXM9164549 20-168 2G1WN54T3M9164554 44-214 2G1WN54T9M9164557 11-095 2G1WN54T0M9164558 06-445 2G1WN54T2M9164562 08-304 2G1WN54T4M9164563 20-168

DEALER CAMPAIGN RESPONSIBILITY

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

WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN IS TAKEN INTO YOUR NEW OR VEHICLE INVENTORY, OR IT IS IN YOUR DEALERSHIP FOR SERVICE IN THE FUTU SHOULD TAKE THE STEPS NECESSARY TO BE SURE THE CAMPAIGN CORRECTION HAS MADE BEFORE RESELLING OR RELEASING THE VEHICLE.

OWNERS OF VEHICLES RECENTLY SOLD FROM YOUR NEW VEHICLE INVENTORY ARE T CONTACTED BY THE DEALER, AND ARRANGEMENTS MADE TO MAKE THE REQUIRED CO ACCORDING TO INSTRUCTIONS CONTAINED IN THIS BULLETIN.

PARTS INFORMATION

DO NOT ORDER PARTS FROM GENERAL MOTORS SERVICE PARTS OPERATION (GMSPO)

PARTS REQUIRED TO COMPLETE THIS CAMPAIGN CAN BE OBTAINED BY CONTACTING INC. AT (313) 865-5000 EXTENSION #263 AND REQUEST CHEVROLET CAMPAIGN P ASSISTANCE. VIN NUMBER WILL BE REQUIRED WHEN ORDERING PARTS.

SERVICE PROCEDURE

NOTICE: REAR AUXILIARY SPRING ASSEMBLIES ARE MAINTAINED IN A COMPRESSED STATE BY A BOLT BETWEEN THE UPPER AND LOWER BRACKETS. REMOVAL OF THIS BOLT PRIOR TO STEP 10 OF THIS PROCEDURE MAY RESULT IN PERSONAL INJURY.

1. RAISE VEHICLE AND SUPPORT SO THAT REAR SUSPENSION IS HANGING DOWN IN A FULL REBOUND POSITION.

2. REMOVE BOTH REAR WHEEL AND TIRE ASSEMBLIES.

3. INSTALL NUTS, P/N 10152148, INTO HOLES OF REAR SPINDLE RODS AS SHOWN IN VIEW A OF ILLUSTRATION PROVIDED BY HELM, INC. INCLUDED WITH CAMPAIGN PARTS.

4. REMOVE RIGHT-HAND UPPER STRUT/KNUCKLE ATTACHING BOLT.

5. POSITION NEW STRUT/KNUCKLE ATTACHING BOLT THROUGH RIGHT-HAND REAR AUXILIARY SPRING, P/N 10130164, AND INSTALL INTO STRUT AND KNUCKLE ASSEMBLY. INSTALL NUT AND TIGHTEN, LEAVING ATTACHMENT LOOSE ENOUGH SO THAT AUXILIARY SPRING CAN BE ROTATED ONTO POSITION AFTER REMOVAL OF LOWER STRUT/KNUCKLE BOLT.

6. REMOVE RIGHT-HAND LOWER STRUT/SPINDLE ATTACHING BOLT.

7. ROTATE AUXILIARY SPRING INTO POSITION AND INSTALL NEW STRUT/KNUCKLE LOWER ATTACHING BOLT AND NUT.

8. HAND START SPINDLE-ROD-TO-AUXILIARY-SPRING BOLT, P/N 11508251.

9. TORQUE NEW UPPER AND LOWER STRUT/KNUCKLE ATTACHING BOLTS TO 180 NM (133 LB. FT. ) (SEE ILLUSTRATION).

10. SLOWLY REMOVE RETAINING BOLT (SEE ILLUSTRATION).

11. TORQUE SPINDLE-ROD-TO-AUXILIARY-SPRING BOLT TO 46 NM (36 LB. FT.).

12. REPEAT STEPS 4 THROUGH 11 FOR LEFT-HAND AUXILIARY SPRING INSTALLATION (P/N 10130163).

13. INSTALL WHEEL AND TIRE ASSEMBLIES.

14. LOWER VEHICLE.

15. INSTALL A CAMPAIGN IDENTIFICATION LABEL.

CAMPAIGN IDENTIFICATION LABEL

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

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

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

CLAIM INFORMATION

SUBMIT A PRODUCT CAMPAIGN CLAIM WITH THE INFORMATION INDICATED BELOW.

* ** REPAIR PARTS LABOR LAB OTH NET PERFORMED PC ALLOW CC/FC OP HRS HRS AMT

INSTALL REAR - - SK-00 V6800 0.9 0.1 $16.90 AUX. SPRINGS BOTH SIDES

* CAMPAIGN ADMINISTRATIVE ALLOWANCE.

** THE $16.90 IDENTIFIED IN THE "NET AMOUNT" COLUMN REPRESENTS 30% OF THE CURRENT GMSPO DEALER NET PRICE OF PARTS USED IN CONJUNCTION WITH LABOR OPERATION V6800.

DEALERS WILL AUTOMATICALLY RECEIVE THE CORRECT LABOR TIME AND MATERIAL ALLOWANCE BASED ON THE LABOR OPERATION PERFORMED.

REFER TO THE CHEVROLET CLAIMS PROCESSING MANUAL FOR DETAILS ON PRODUCT CAMPAIGN CLAIM SUBMISSION.

OWNER NOTIFICATION LETTERS WILL BE MAILED ON JULY 26, 1991.

PLEASE COMMUNICATE THIS INFORMATION TO YOUR SERVICE AND PARTS MANAGERS

I. L. CLAY, MANAGER TECHNICAL SERVICE DEPARTMENT

COPYRIGHT 1991 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION ALL RIGHTS RESERVED

CHEVROLET BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS, "DO-IT-YOURSELFER." THEY ARE WRITTEN TO INFORM THESE TECHNICIANS OF CONDITIONS THAT MAY OCCUR ON SOME VEHICLES, OR TO PROVIDE INFORMATION COULD ASSIST IN THE PROPER SERVICE OF A VEHICLE. PROPERLY TRAINED TEC HAVE THE EQUIPMENT, TOOLS, SAFETY INSTRUCTIONS, AND KNOW-HOW TO DO A J PROPERLY AND SAFELY. IF A CONDITION IS DESCRIBED, DO NOT ASSUME THAT BULLETIN APPLIES TO YOUR VEHICLE, OR THAT YOUR VEHICLE HAS THAT CONDIT SEE YOUR CHEVROLET DEALER FOR INFORMATION ON WHETHER YOUR VEHICLE MAY FROM THAT INFORMATION.

(NOTIFICATION USED BY CHEVROLET MOTOR DIVISION)

JULY 26, 1991

DEAR CHEVROLET LUMINA EURO OWNER:

THIS NOTICE IS SENT TO INFORM YOU THAT CHEVROLET MOTOR DIVISION IS CON A RECALL CAMPAIGN THAT INVOLVES YOUR VEHICLE.

REASON FOR THIS RECALL

GENERAL MOTORS HAS BEEN DETERMINED THAT CERTAIN 1991 CHEVROLET LUMINA MODEL VEHICLES EQUIPPED WITH FE2 SUSPENSIONS AND BUILT AT OSHAWA PLANT ASSEMBLED WITHOUT AUXILIARY REAR SPRINGS. THIS CONDITION MAY CAUSE TH INVOLVED VEHICLES TO HAVE A "MUSHY" OR "UNDULATING" RIDE. THE HANDLIN THESE VEHICLES WILL NOT BE AFFECTED.

WHAT WE WILL DO

TO CORRECT THIS CONDITION, YOUR CHEVROLET DEALER WILL INSTALL THE MISS AUXILIARY SPRINGS. THIS SERVICE WILL BE PERFORMED FOR YOU AT NO CHARG

WHAT YOU SHOULD DO

PLEASE CONTACT YOUR CHEVROLET DEALER AS SOON AS POSSIBLE TO ARRANGE A DATE AND SO THE DEALER MAY ORDER THE PARTS NECESSARY TO PERFORM THE RE INSTRUCTIONS FOR MAKING THIS CORRECTION HAVE BEEN SENT TO YOUR DEALER. ASK YOUR DEALER IF YOU WISH TO KNOW HOW MUCH TIME WILL BE NEEDED TO SC PROCESS AND REPAIR YOUR VEHICLE.

THE ENCLOSED OWNER REPLY CARD IDENTIFIES YOUR VEHICLE. PRESENTATION O CARD TO YOUR DEALER WILL ASSIST IN MAKING THE NECESSARY CORRECTION IN SHORTEST POSSIBLE TIME. IF YOU HAVE SOLD OR TRADED YOUR VEHICLE, PLEA US KNOW BY COMPLETING THE POSTAGE PAID REPLY CARD AND RETURNING IT TO

WE ARE SORRY TO CAUSE YOU THIS INCONVENIENCE; HOWEVER, WE HAVE TAKEN T ACTION IN THE INTEREST OF YOUR CONTINUED SATISFACTION WITH OUR PRODUCT

CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION

91C19

ENCLOSURE