INFO. WATERLEAK DIAGNOSTIC GUIDE

SUBJECT: INFORMATION - WATERLEAK DIAGNOSTIC GUIDE

MODELS: 1995-97 CHEVROLET CAVALIER (CONVERTIBLE) 1995-97 PONTIAC SUNFIRE (CONVERTIBLE)

WATERLEAK DIAGNOSIS -

1. WATER ENTERING NEAR MIRROR CLOSE-OUT

FIGURE 1

CONDITION MAY BE DUE TO A GAP WHERE MIRROR SEAL MEETS FRONT DOOR CAP.

DIAGNOSIS:

1. REMOVE DOOR UPPER FRONT PANEL.

2. WATER TEST WITH GARDEN HOSE AND INSPECT.

CORRECTION:

1. LOOSEN NUTS AND ADJUST TO SEAL.

2. ADJUST DOOR INWARD IF DOOR IS OUTWARD OF SEAL EDGE.

3. THUMB GRADE SEALER WHERE IT MEETS THE GLASS FRONT CHANNEL ASSEMBLY SEAL.

2. WATER/MOISTURE ON FLOOR NEAR RH/LH DOOR

FIGURE 2

CONDITION MAY BE DUE TO -

1. WATER TRAVELING IN THROUGH HOLES IN DOOR INNER PANEL.

2. WATER DEFLECTOR MISPLACED OR MISSING.

3. WATER TRAVELING IN THROUGH MANUAL WINDOW REGULATOR SPINDLE.

CORRECTION:

1. SEAL HOLES IN DOOR INNER PANEL.

2. REMOVE DOOR TRIM PANEL TO INSPECT AND CORRECT AS NECESSARY.

3. SEAL WINDOW REGULATOR CRANK.

3. FRONT FLOOR OR SEAT WET

FIGURE 3

THIS MAY BE EXTREMELY DIFFICULT TO DIAGNOSE AS THE WATER COULD RUN DOWN TO THE FLOOR BY WAY OF THE GARNISH MOLDINGS. CHECK INSIDE OF THE GARNISH MOLDINGS FOR MOISTURE.

CONDITION MAY BE DUE TO:

1. HEADER SEAL TO HEADER NOT SEALED.

2. VOID IN SEAL TO HEADER IN DITCH (WHERE METAL PIECES COME TOGETHER).

3. PIPING NOT TRIMMED ENOUGH CAUSING A TROUGH IN THE HEADER SEAL. (THIS IS THE JOINT SEWN IN THE VINYL MATERIAL AT THE NO. 1 BOW).

CORRECTION:

1. USE BUTYL TAPE TO SEAL HEADER TO HEADER SEAL.

2. USE THUMB GRADE SEALER TO LEVEL HEADER SEAL AND SEAL VOID.

3. TRIM VINYL MATERIAL AT THE STAPLES ON THE UNDER SIDE OF THE NO. 1 BOW.

4. REAR FLOOR WET OR MOLDY SMELL FROM UNDER REAR SEAT

FIGURE 4

CONDITION MAY BE DUE TO WATER TRAVELING AROUND FRONT OF QUARTER WINDOW INNER WEATHERSTRIP.

CORRECTION:

1. TRIM QUARTER WINDOW INNER WEATHERSTRIP.

FIGURES: 04 ATTACHMENTS: 00

FIGURE 1 - CROSS-HATCH AREA OF DOOR STRUCTURE REQUIRING BUTYL SEALER

FIGURE 2 - APPLY SEALER TO NON-USED SLOT IN DOOR STRUCTURE LEGEND 1. BUTYL SEALER

FIGURE 3 - CROSS-HATCH AREA OF HEADER AT DITCH MOLDING REQUIRING BUTYL SEALER LEGEND 1. DITCH MOLDING

FIGURE 4 - CROSS-HATCH AREA OF QUARTER WINDOW INNER WEATHERSTRIP REQUIRING MODIFICATION BY CUTTING

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.

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