DOOR GLASS SCRAPING NOISE OR STICKING GLASS

SUBJECT: DOOR GLASS SCRAPING NOISE OR STICKING GLASS (LUBRICATE/ REPLACE GLASS RUN CHANNEL AND LUBRICATE REVEAL MOLDING)

MODELS: 1994-95 CADILLAC CONCOURS, DEVILLE - BUILT PRIOR TO VIN BREAKPOINT SU216253 FOR 1995

CONDITION:

SOME OWNERS MAY COMMENT ON A SCRAPING NOISE HEARD WITH THE OPERATION OF THE FRONT/REAR DOOR GLASS UP OR DOWN, AND THE DOOR GLASS STICKING WITH DOWN OPERATION.

CORRECTION:

LUBRICATE GLASS RUN CHANNEL (AND REPLACE IF WEAR BAR IS PRESENT), AND LUBRICATE REVEAL MOLDING.

GLASS RUN CHANNEL -

1. CHECK FRONT/REAR GLASS RUN CHANNEL AND DOOR GLASS FOR PROPER FIT.

- IF ADJUSTMENT IS NECESSARY, FOLLOW THE APPROPRIATE ADJUSTMENT PROCEDURE IN THE SERVICE MANUAL.

2. LOWER DOOR GLASS TO FULL DOWN POSITION.

3. REMOVE GLASS RUN CHANNEL AND CHECK FOR PRESENCE OF WEAR BAR (HARD GLOSSY SURFACE) ON THE GLASS RUN CHANNEL (SEE FIGURE 1, ITEM 3). IF WEAR BAR IS PRESENT, REPLACE THE DOOR GLASS RUN CHANNEL AND LUBRICATE RUN CHANNEL WITH KRYTOX LUBRICANT (GPL 105)* ACCORDING TO STEP 5.

4. IF WEAR BAR AREA IS FLOCKED, (FIGURE 1, ITEM 2) CLEAN FLOCKED AREA WITH A MILD SOAP AND WATER.

5. CLEAN HORIZONTAL SECTION OF THE GLASS RUN CHANNEL MIDDLE LIP (FIGURE 1, ITEM 1) WITH MILD SOAP AND WATER. APPLY A THIN COAT OF KRYTOX LUBRICANT TO "AREA TO BE COATED" SHOWN IN FIGURE 1, SECTION A.

6. INSTALL GLASS RUN CHANNEL.

REVEAL MOLDING

1. WITH GLASS RUN CHANNEL REMOVED, CLEAN UPPER REVEAL MOLDING INNER (PVC) SURFACE WITH A MILD SOAP AND WATER (FIGURE 2, ITEM 1).

2. CHECK THE REVEAL MOLDING INNER "B" PILLAR SECTION FOR SCORING MARKS. IF SCORING IS PRESENT, WET SAND BY APPLYING KRYTOX (GPL 105) TO 600 SANDPAPER AND WIPE CLEAN.

3. APPLY A THIN COAT OF KRYTOX (GPL 105) LUBRICANT TO CLEANED AREAS SHOWN IN FIGURE 2, SECTION A.

4. INSTALL GLASS RUN CHANNEL.

*WE BELIEVE THIS SOURCE AND ITS PRODUCT TO BE RELIABLE. THERE MAY BE ADDITIONAL MANUFACTURERS OF SUCH PRODUCTS. GENERAL MOTORS DOES NOT ENDORSE, INDICATE ANY PREFERENCE FOR OR ASSUME ANY RESPONSIBILITY FOR THE PRODUCTS OR EQUIPMENT FROM THESE FIRMS OR FOR ANY SUCH ITEMS WHICH MAY BE AVAILABLE FROM OTHER SOURCES.

PARTS INFORMATION:

GLASS RUN CHANNEL (RH) - P/N 25647760 GLASS RUN CHANNEL (LH) - P/N 25647759 KRYTOX LUBRICANT (GPL 105) - P/N 3634770

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION NUMBER: C0140/41 LABOR TIME: 0.2 HR (FRONT DOOR) 0.3 HR (REAR DOOR) ADD: 0.2 HR (TO CLEAN/LUBRICATE RUN CHANNEL AND REVEAL MOLDING)

FIGURES: 2 ATTACHMENTS: 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 1995 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.