CAMPAIGN: 1980 CITATION UNDERBODY REVISIONS. Chevrolet Citation 1980

GENERAL MOTORS HAS DETERMINED THAT SOME 1980 CHEVROLET CITATION MODELS MAY HAVE INADEQUATE HIGH MILEAGE FLOOR PAN DURABILITY AT THE ENGINE CRADLE MOUNT CUSHION AREA. TO PREVENT POSSIBLE FLOOR PAN CRACKING, IT WILL BE NECESSARY TO INSTALL A REINFORCEMENT PLATE BETWEEN THE ENGINE CRADLE MOUNT AND THE FLOOR PAN CROSS BODY BAR.

IN ADDITION, THE AREA OF THE FRONT SHIPPING TIE DOWN SLOTED HOLES MAY HAVE SUFFERED DAMAGE IN SHIPMENT. THESE HOLES MAY ALSO BE USED AS THE ATTACHMENT POINT FOR HOOKS WHEN THESE VEHICLES ARE TOWED, AND ANY DAMAGE OTHER THAN SUPERFICIAL DEFORMATION MUST BE REPAIRED.

VEHICLES INVOLVED

ALL 1980 CHEVROLET CITATION MODELS ASSEMBLED AT WILL RUN AND TARRYTOWN FROM THE START OF PRODUCTION, AND UP TO AND INCLUDING THE FOLLOWING VEHICLE IDENTIFICATION NUMBERS ARE INVOLVED:

PLANT FROM THROUGH

WILLOW RUN START OF PRODUCTION 1X687AW112392 TARRYTOWN START OF PRODUCTION 1X687AT103507

VEHICLE IDENTIFICATION NUMBER COMPUTER LISTINGS HAVE BEEN FURNISHED TO ALL INVOLVED DEALERS, ALONG WITH THE CAMPAIGN BULLETIN. ANY DEALER NOT RECEIVING A COMPUTER LISTING WAS NOT SHIPPED ANY INVOLVED VEHICLES.

OWNER NOTIFICATION

NO OWNER NOTIFICATION WILL BE REQUIRED SINCE ALL INVOLVED VEHICLES ARE IN DEALER STOCK.

DEALER CAMPAIGN RESPONSIBILITY

ALL INVOLVED VEHICLES ARE NOT TO BE SOLD BY THE DEALER UNTIL CAMPAIGN MODIFICATION HAS BEEN COMPLETED.

SERVICE PROCEDURE

1. RAISE VEHICLE ON HOIST. DEPENDING ON TYPE OF HOIST USED, POSITION AND ADJUST TWO (2) JACK STANDS AS FOLLOWS:

TWIN POST HOIST

POSITION JACK STANDS AT UNDERBODY AREA DIRECTLY BEHIND LEFT AND RIGHT HAND FRONT WHEEL OPENING (SEE FIGURE 1).

"H" HOIST

POSITION JACK STANDS AT LEFT AND RIGHT SIDE RAILS JUST FORWARD OF STABILIZER BAR ATTACHING BRACKETS TO SUPPORT CRADLE.

2. LOOSEN LEFT AND RIGHT FRONT CRADLE BOLTS.

3. REMOVE LEFT AND RIGHT REAR BODY MOUNT BOLTS AND RETAINER PLATES.

4. REMOVE TWO FUEL LINE CLIP MOUNTING SCREWS: ONE LOCATED ADJACENT TO RIGHT REAR BODY MOUNT; A SECOND AT NEXT REARWARD POSITION.

5. DEPENDING ON TYPE OF HOIST USED, LOWER REAR OF CRADLE WITH HOIST OR JACK STANDS SLIGHTLY. POSITION RIGHT REAR REINFORCEMENT PLATE (PART NO. 20215001) IN BETWEEN UNDERBODY, FUEL LINE CLIP, AND UPPER BODY MOUNT CUSHION (FIGURE 1). POSITION PLATE SUCH THAT FUEL LINE CLIP ANTIROTATION TANG IS SEATED AND KIT MOUNTING SCREW (PART NO.11500086) CAN BE INSTALLED.

6. LOOSELY INSTALL KIT MOUNTING SCREW (PART NO. 11500086) INTO FUEL LINE ANTIROTATION CLIP.

7. REINSTALL RIGHT REAR RETAINER PLATE, AND LOOSELY INSTALL BODY MOUNT CUSHION BOLT.

8. POSITION LEFT REAR REINFORCEMENT PLATE (PART NO. 20215002) IN BETWEEN UNDERBODY AND UPPER BODY MOUNT CUSHION, SUCH THAT GAGE HOLE IN PLATE ALIGNS WITH GAGE HOLE IN UNDERBODY AND ENTIRE PLATE IS ON FLAT PORTION OF UNDERBODY.

NOTE: TO INSURE REQUIRED SCREW TORQUE, REINFORCEMENT PLATE MOUNTING HOLES SHOULD NOT ALIGN TO ANY EXISTING HOLES IN UNDERBODY AS THEY MAY BE TOO LARGE.

9. REINSTALL LEFT REAR RETAINER PLATE AND LOOSELY INSTALL BODY MOUNT CUSHION BOLT.

10. CRADLE TO BODY ALIGNMENT MUST NOW BE ACCOMPLISHED. ALIGN CRADLE BY PLACING 5/8 INCH GAGE RODS IN GAGE HOLSE PROVIDED IN CRADLE AND UNDERBODY AT RIGHT FRONT AND RIGHT REAR MOUNT LOCATIONS (FIGURE 2).

NOTE: IT MAY BE NECESSARY TO LOOSEN FOUR (4) STABILIZER BAR ATTACHING BOLTS AND SHIFT BRACKET FORWARD TO CLEAR ALIGNMENT HOLE. ONCE GAGE RODS ARE POSITIONED, STABILIZER BOLTS MAY BE TIGHTENED TO 35-44 FT. LBS. (48-60 NEWTON METERS).

11. TIGHTEN FUEL LINE ANTIROTATION CLIP ATTACHING SCREW (INSTALLED IN STEP 6), TO 7-8 FT.LBS. (9-11 NEWTON METERS). MAKE SURE SCREW IS FULLY DRIVEN, SEATED, AND NOT STRIPPED.

12. LIFT CRADLE TO BODY AND TORQUE BODY MOUNTING BOLTS TO 71-85 FT. LBS.(95-115 NEWTON METERS) BEGINNING WITH RIGHT REAR, THEN RIGHT FRONT, THEN LEFT FRONT, THEN LEFT REAR.

13. CENTER PUNCH UNDERBODY THROUGH MOUNTING HOLES IN LEFT AND RIGHT REAR REINFORCEMENT PLATES (TWO IN LEFT PLATE, ONE IN RIGHT PLATE). USING A TAP DRILL "G" (.261), DRILL THREE MOUNTING HOLES IN UNDERBODY NOT TO EXCEED A DEPTH OF 3/4 INCH. DRILL SIZE STATED MUST BE USED TO INSURE REQUIRED TORQUE ON MOUNTING SCREWS. APPLY ANTI-CORROSION MATERIAL (PART NO. 1052290) TO DRILLED AREAS.

14. INSTALL ONE (1) KIT MOUNTING SCREW (PART NO. 11500086) IN RIGHT REAR REINFORCEMENT PLATE AND TWO (2) KIT MOUNTING SCREWS (PART NO. 11500086) IN LEFT REAR REINFORCEMENT PLATE. TIGHTEN SCREWS TO 7-8 FT. LBS. (9-11 NEWTON METERS). MAKE SURE SCREWS ARE FULLY DRIVEN, SEATED, AND NOT STRIPPED. APPLY ANTI-CORROSION MATERIAL (PART NO. 1052290) TO SURFACE OF EACH REINFORCEMENT PLATE.

15. REINSTALL ORIGINAL SCREW IN FUEL LINE CLIP LOCATED REARWARD OF RIGHT REAR BODY MOUNT AND TIGHTEN TO 7-8 FT. LBS. (9-11 NEWTON METERS). MAKE SURE SCREW IS FULLY DRIVEN, SEATED, AND NOT STRIPPED.

16. PULL GAGE RODS FROM RIGHT HAND SIDE AND REMOVE JACK STANDS.

17. INSPECT CONDITION OF UNDERBODY METAL FOR SHIPPING DAMAGE AT THE CARRIER TIE DOWN SLOTS LOCATED DIRECTLY REAR OF LEFT AND RIGHT FRONT WHEELS (SEE FIGURE 3).

INSPECTION

A. LIGHT TO MODERATE DEFORMATION OF THE AREA AROUND THE SLOT IS ACCEPTABLE AND REWORK IS NOT REQUIRED. IF THIS IS THE CASE, PROCEED TO STEP 21.

B. IF CRACKS, TEARS OR ELONGATION OF SLOT(S) EXIST, INSTALLATION OF A REINFORCEMENT PLATE IS REQUIRED AT THAT LOCATION ONLY. PROCEED TO STEP 18, IF SUCH DAMAGE IS LESS THAN 3/4" IN LENGTH.

C. CONTACT YOUR ZONE RESPRESENTATIVE FOR INSTRUCTIONS IF DAMAGE EXCEEDS 3/4" IN LENGTH.

18. STRAIGHTEN METAL AT LEFT AND/OR RIGHT TIE DOWN SLOT LOCATIONS.

NOTE: IF UNDERBODY CRACKING OR TEARING EXTENDS INTO THE HOLE LOCATIONS SHOWN IN FIGURE 4(TEMPLATE), REPOSITIONING OF HOLES MAY BE REQUIRED TO ATTAIN SOLID ATTACHMENT.

19. CENTER PUNCH AND DRILL FOUR 5/16 INCH HOLES (ONE IN EACH CORNER) IN REINFORCEMENT PLATE(S). PART NO. 20213819 LH AND PART NO. 20213818 RH. SEE FIGURE 4. DEBURR HOLES.

A. RIGHT SIDE (IF REQUIRED BY STEP 17B) USING REINFORCEMENT PLATE (PART NO. 20213818) AS A TEMPLATE, POSITION OVER RIGHT HAND UNDERBODY TIE DOWN SLOT AND SCRIBE (TRACE) ATTACHING HOLE LOCATIONS ON UNDERBODY.

B. LEFT SIDE (IF REQUIRED BY STEP 17B) USING REINFORCEMENT PLATE (PART NO. 20213819) AS A TEMPLATE, POSITION OVER LEFT HAND UNDERBODY TIE DOWN SLOT AND SCRIBE (TRACE) ATTACHING HOLD LOCATIONS ON UNDERBODY.

20. CENTER PUNCH SCRIBED (TRACED) MARKS COMPLETED IN 19A AND/OR 19B ABOVE. USING 7/32 INCH DRILL, DRILL ATTACHING HOLES IN UNDERBODY NOT TO EXCEED A DEPTH OF 3/4 INCH. APPLY ANTICORROSION MATERIAL (PART NO. 1052290) TO DRILLED AREAS AND ANY VISIBLE CRACKS.

A. RIGHT SIDE

POSITION REINFORCEMENT PLATE (PART NO.20213818) OVER RIGHT HAND TIE DOWN SLOT AND INSTALL FOUR (4) PART NO. 11500086 ATTACHING SCREWS. TIGHTEN TO 7-8 FT. LBS. (9-11 NEWTON METERS). SEE FIGURE 5. APPLY ANTI-CORROSION MATERIAL (PART NO. 1052290) TO SURFACE OF REINFORCEMENT PLATE.

B. LEFT SIDE POSITION REINFORCEMENT PLATE (PART NO. 20213819) OVER LEFT HAND TIE DOWN SLOT AND INSTALL FOUR (4) PART NO. 11500086 ATTACHING SCREWS. TIGHTEN TO 7-8 FT. LBS. (9-11 NEWTON METERS). SEE FIGURE 5. APPLY ANTI-CORROSION MATERIAL (PART NO. 1052290) TO SURFACE OF REINFORCEMENT PLATE.

21. LOWER VEHICLE.

22. INSPECT AND RESET FRONT END TOE ADJUSTMENT TO SPECIFICATIONS (+ .10 DEGREES +.10 DEGREES).

PARTS INFORMATION

PARTS REQUIRED TO COMPLETE THIS MODIFICATION ARE BEING SENT TO EACH CHEVROLET ZONE SERVICE DEPARTMENT ON A NO-CHARGE BASIS. PARTS WILL BE FURNISHED TO THE DEALER ON A NO-CHARGE BASIS.

PART NUMBER QUANTITY DESCRIPTION

20215001 1 PER VEHICLE REINFORCEMENT PLATE RIGHT SIDE

20215002 1 PER VEHICLE REINFORCEMENT PLATE LEFT SIDE

11500086 4 PER VEHICLE MOUNTING SCREWS

NOTE: A LIMITED NUMBER OF VEHICLES MAY REQUIRE THE CARRIER TIE DOWN SLOT MODIFICATION; THEREFORE, THE FOLLOWING ADDITIONAL PARTS MAY BE REQUIRED.

PART NUMBER QUANTITY DESCRIPTION

20213818 1 PER VEHICLE TIE DOWN REINFORCE- MENT PLATE (RIGHT HAND X9R)

20213819 1 PER VEHICLE TIE DOWN REINFORCE- MENT PLATE (LEFT HAND X9L)

11500086 8 PER VEHICLE ATTACHING SCREWS

THE ABOVE PARTS ARE NOT TO BE ORDERED FROM GENERAL MOTORS PARTS DISTRIBUTION CENTERS

SPECIFIED ANTI-CORROSION MATERIAL MAY BE OBTAINED THROUGH GENERAL MOTORS PARTS DISTRIBUTION CENTERS. EQUIVALENT (BLACK) ANTI-CORROSION MATERIAL MAY BE USED IF THE SPECIFIED GENERAL MOTORS PART NUMBER 1052290 IS NOT AVAILABLE.

WARRANTY INFORMATION, FAILURE CODE, LABOR TIME ALLOWANCE, FAILED LABOR OPERATION AND CONDITION CODE

DEALERS ARE TO SUBMIT EACH CAMPAIGNED VEHICLE AS A SEPARATE CASE ON THE ONE-LINE WARRANTY CLAIM FORM GSD-970.

THE CAMPAIGN FAILURE CODE, LABOR OPERATION NUMBER AND CONDITION CODE ARE TO BE SUBMITTED EXACTLY AS SHOWN ON THE EXAMPLE GSD-970 ONE-LINE CLAIM FORM INCLUDED IN THIS CAMPAIGN BULLETIN.

DEALERS SUBMITTING WARRANTY CLAIM APPLICATIONS ON THE CHEVROLET DEALER COMMUNICATION SYSTEM ARE TO SUBMIT CAMPAIGN CLAIMS VIA THE DEALER COMMUNICATIONS TERMINAL ACCORDING TO THE CAMPAIGN CLAIM PROCEDURE DOCUMENTED IN THE CHEVROLET "DEALER COMMUNICATION SYSTEM-OPERATION GUIDE".

FAILED FAILURE LABOR TIME LABOR CONDITION CODE ALLOWANCE OPERATION CODE

1A 1.0 HOURS 80C04 89

DESCRIPTION: INSTALL RIGHT AND LEFT REINFORCEMENT PLATES PER THE INSTRUCTIONS CONTAINED IN THIS BULLETIN. INSPECT CARRIER TIE DOWN SLOTS - ADDITIONAL MODIFICATION NOT REQUIRED.

1B 1.3 HOURS 80C04 89

DESCRIPTION: INSTALL RIGHT AND LEFT BODY MOUNTING REINFORCEMENT PLATES PER THE INSTRUCTIONS CONTAINED IN THIS BULLETIN. IN ADDITION, INSTALL ONE CARRIER TIE DOWN SLOT REIN- FORCEMENT PLATE PER THE INSTRUCTIONS CONTAINED IN THIS BULLETIN. 1C 1.4 HOURS 80C04 89

DESCRIPTION: INSTALL RIGHT AND LEFT BODY MOUNTING REINFORCEMENT PLATES PER THE INSTRUCTIONS CONTAINED IN THIS BULLETIN. IN ADDITION, INSTALL TWO (2) CARRIER TIE DOWN SLOT REINFORCEMENT PLATES PER THE INSTRUCTIONS CONTAINED IN THIS BULLETIN. DEALERS WILL AUTOMATICALLY RECEIVE .1 HOURS DEALER ADMINISTRATIVE DETAIL ASSOCIATED WITH THIS CAMPAIGN.

IN ADDITION, DEALERS WILL RECEIVE 30% OF DEALER NET WHEN PARTS ARE FURNISHED AT NO-CHARGE BY CHEVROLET - (1A $ .65, 1B $ .75, 1C $.85). DEALER WILL LIKEWISE RECEIVE ($ .30 PER VEHICLE FOR ANTI-CORROSION MATERIAL.)

ADMINISTRATIVE PROCEDURE

THE APPROPRIATE CAMPAIGN HANDLING AND ADMINISTRATIVE PROCEDURE MAY BE FOUND IN THE CHEVROLET SERVICE POLICIES AND PROCEDURE MANUAL, SECTION 5, PAGES 1 AND 2, DATED OCTOBER, 1978, IN YOUR DEALERSHIP.

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.