For 1990-2009 cars

# BLACK ROOF PAINT CHALKING AND ETCHING MARKS ON ROOF PANEL

APPLICATION: 1990-92 "U" VAN

#### CONDITION:

THE ROOF PANELS (BLACK PORTIONS ONLY) MAY SHOW A CHALKING OR WHITENING SURFACE AND THE OUTSIDE EDGES OF THE BLACK ROOF PANELS MAY HAVE ETCH MARKS.

#### CORRECTION:

REFINISH THE BLACK PORTIONS OF THE ROOF PANEL(S) USING THE FOLLOWING PROCEDURE.

1. REMOVE UPPER WINDSHIELD MOLDING.

2. REMOVE ROOF LUGGAGE RACK SIDE RAILS AND CROSS RAILS, IF EQUIPPED.

3. IF EQUIPPED, MASK LUGGAGE RACK SKID STRIPS FOR PROTECTION DURING SANDING OPERATIONS.

4. MASK THE BODY COLOR PAINTED ROOF SURFACES FOR PROTECTION DURING SANDING.

#### NOTE: THE BLACK AREAS ON TOP OF THE FRONT DOORS AND SLIDING SIDE DOORS ARE APPLIQUES, AND AS SUCH DO NOT REQUIRE REPAIR.

5. REMOVE THE CHALKING CLEARCOAT MATERIAL FROM THE BLACK ROOF PANELS USING A DA (DUAL ACTION ORBITAL SANDER) AND #180 GRIT SANDING DISCS.

6. LIGHTLY RE-SAND WITH #240 OR #320 GRIT SANDPAPER TO SMOOTH THE SURFACE.

7. BLOW OFF THE SANDING DUST AND RESIDUE.

8. REMOVE MASKING TAPE AND RE-MASK ALL NECESSARY AREAS FOR PAINTING.

9. WIPE AND CLEAN REPAIR AREA WITH A WAX AND GREASE REMOVER.

10. WIPE REPAIR AREA WITH A TACK RAG.

11. APPLY A COAT OF PRIMER SEALER. FOLLOW MANUFACTURER'S INSTRUCTIONS AND RECOMMENDED DRY TIMES.

12. APPLY 2 TO 3 MEDIUM WET COATS OF BLACK BASECOAT (OR UNTIL PRIMER IS HIDDEN). FOLLOW MANUFACTURER'S INSTRUCTIONS AND RECOMMENDED DRY TIMES.

13. APPLY CLEARCOAT. FOLLOW MANUFACTURER'S INSTRUCTIONS AND RECOMMENDED DRY TIMES.

14. AFTER SUFFICIENT FORCE DRY OR AIR DRY TIME, REMOVE MASKING.

15. FINESSE/POLISH AS REQUIRED.

16. REINSTALL PREVIOUSLY REMOVED HARDWARE AND MOLDINGS.

#### WARRANTY INFORMATION:

LABOR OPERATION: A6110

LABOR TIME: CHEVROLET: 1.8 HRS. (FRONT ONLY) MATERIAL ALLOWANCE: GM

OLDSMOBILE: 4.9 HRS. MATERIAL ALLOWANCE: HJ ADD: FOR LUGGAGE RACK 0.4 HR.

PONTIAC: 5.0 HRS. MATERIAL ALLOWANCE: HK ADD: FOR LUGGAGE RACK 0.4 HR.

FIGURES: 0

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.

COPYRIGHT 1993 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.