Windshield Replacement - Long
REMOVAL PROCEDURECAUTION:
^ When replacing stationary windows, Urethane Adhesive Kit GM P/N 12346284, or a urethane adhesive system meeting GM Specification GM3651M, must be used to maintain original installation integrity. Failure to use the urethane adhesive kit will result in poor retention of the window which may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.
^ When working with any type of glass, use approved safety glasses and gloves to reduce the chance of personal injury.
Tools Required
^ Adhesive Kit GM P/N 12346284, or equivalent
^ J 24402-A Glass Sealant Remover (Cold Knife with Teflon blade), or equivalent
^ J 24402-15 Window Remover Blade, (used with cold knife)
^ Pneumatic Knife
^ Scraper
^ Plastic Paddle
Windshield Replacement: Long - Removal Procedure:
1. Remove the roof lift off panel (coupe) or lower the folding top (convertible).
2. Lower the door windows.
3. Open the hood.
4. Remove the windshield wiper arms and washer hoses.
Windshield Replacement: Long - Removal Procedure:
5. Remove the plenum to hood seal.
Windshield Replacement: Long - Removal Procedure:
6. Carefully remove the air inlet plenum screen panel.
Windshield Replacement: Long - Removal Procedure:
7. Mark the location of the lower windshield supports with a grease pencil or tape.
8. Remove the lower windshield supports. Pry the support from the lower edge to separate the two sided tape.
Windshield Replacement: Long - Removal Procedure:
9. Disconnect the inside rearview mirror electrical connector.
10. Loosen the mirror attaching screw.
11. Remove the inside rearview mirror.
12. Disconnect the antenna lead connection (coupe).
13. Tape over the defogger vent.
14. Cover the vehicle interior to protect the interior from broken glass.
Windshield Replacement: Long - Removal Procedure:
15. Remove the windshield weatherstrip.
Windshield Replacement: Long - Removal Procedure:
16. Remove the windshield side reveal moldings.
Windshield Replacement: Long - Removal Procedure:
17. Remove the windshield side garnish moldings. Pull the molding with its retainers from the windshield frame.
Windshield Replacement: Long - Removal Procedure:
18. Remove the 4 rearmost screws attaching the top of the fender to the wheelhouse.
19. Reposition the fender for tool access.
Windshield Replacement: Long - Removal Procedure:
20. Tape or otherwise protect the fender from the cutting tool.
Important: Do not damage the VIN plate when cutting through the urethane.
21. Cut out the windshield.
^ Cut around the perimeter of the windshield.
^ Cut next to the windshield.
^ Use a J 24402-A cold knife, or equivalent, or a pneumatic knife.
Windshield Replacement: Long - Removal Procedure:
22. Remove the windshield from the body opening.
23. Remove the old urethane from the windshield opening leaving a thin film 1-2 mm (1/16 in) of adhesive on the pinch-weld.
24. Vacuum the inside and outside of the vehicle including the vents to remove all traces of shattered glass.
25. Remove any old adhesive from a reusable windshield.
INSTALLATION PROCEDURE
CAUTION:
^ When replacing stationary windows, Urethane Adhesive Kit GM P/N 12346284, or a urethane adhesive system meeting GM Specification GM365lM, must be used to maintain original installation integrity, Failure to use the urethane adhesive kit will result in poor retention of the window which may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury
^ When working with any type of glass, use approved safety glasses and gloves to reduce the chance of personal injury.
NOTE: Until the new urethane has cured air pressure from a closing door may cause the stationary window to move causing a leak. To prevent this lower a window before closing the door.
Windshield Replacement: Long - Installation Procedure:
1. Inspect the acoustic strip on the dash panel and replace if necessary.
2. Using suction cup holders or with the aid of a helper dry fit the window by position the replacement windshield in the body opening.
3. Carefully inspect the windshield overlap at the body pinch-weld and the retaining flanges all the way around the body opening.
Specifications
The minimum overlap should be 5.0 mm (0.19 in).
4. Mark the windshield position at the following locations using masking tape:
^ The windshield pillars
^ The lower edge
^ The upper edge
Windshield Replacement: Long - Installation Procedure:
5. Install the windshield stops.
Apply two sided tape to the stops.
Align the stops to the marks
Windshield Replacement: Long - Installation Procedure:
6. Cut the tape used to mark the location of the windshield.
7. Remove the windshield from the body opening.
8. Place the windshield inside up on a clean protected surface.
9. Clean the replacement windshield surface to which urethane adhesive is to be applied with an isopropyl alcohol dampened cloth, or use GM Window Cleaner, or equivalent. Allow the alcohol or cleaner to air dry.
Important: Care should be taken to prevent window prep #1 (clear) from running into the vision area of the windshield. This primer dries almost instantly, but may stain the viewing area of the window if not applied evenly.
10. Apply Clear Glass Prep #1 with a new dauber to the edge and inner 50 mm (2 in) of the perimeter of the windshield surface and wipe the surface dry with a clean cloth.
Important: Urethane will not bond to the windshield unless Black Primer #2 is applied to the windshield.
11. Shake Black Glass Primer #2 well and apply with a new dauber to the edge and inner 50 mm (2 in) of the windshield surface and allow the surface to dry for approximately 6 to 10 minutes.
Important:
^ Urethane will not bond to the pinchweld unless Black Primer #3 is applied to the pinchweld.
^ Do Not apply the primer to existing urethane adhesive.
^ The pinchweld should be an original paint or primed surface not an after-market finished painted surface.
Windshield Replacement: Long - Installation Procedure:
12. Shake the Black Pinchweld Primer #3 well and apply with a new dauber to all scratches and bare primer paint on the pinchweld and allow the surface to dry for approximately 10 minutes.
Windshield Replacement: Long - Installation Procedure:
13. Out a notch in the side of the caulking tip 10 mm (0.39 in) high and 4.5 mm (0.18 in) wide.
14. Apply the windshield urethane adhesive (3) using a caulking gun. Hold the gun perpendicular to the surface.
Windshield Replacement: Long - Installation Procedure:
15. Apply a smooth continuous 10 mm (0.39 in) wide and 16 mm (0.62 in) high bead of urethane adhesive directly to the windshield opening.
Windshield Replacement: Long - Installation Procedure:
16. Install the windshield in the opening and align to the previously installed tape.
^ Hand press the windshield firmly in place.
^ Tape the windshield to the body to minimize movement.
^ Paddle the urethane adhesive as needed.
^ Clean up any urethane adhesive squeezed out from under the window.
Windshield Replacement: Long - Installation Procedure:
17. Watertest the windshield immediately.
^ Use a soft spray.
^ Use warm water if available.
^ DO NOT direct a hard stream of high pressure water at the fresh urethane adhesive.
^ Water will accelerate the cure of the urethane adhesive.
18. If leaks are found, apply extra urethane adhesive at the leak points using a plastic paddle and then retest with water.
Windshield Replacement: Long - Installation Procedure:
19. Install the windshield side reveal moldings.
Windshield Replacement: Long - Installation Procedure:
20. Install the windshield weatherstrip.
Windshield Replacement: Long - Installation Procedure:
21. Install the fender mounting screws.
Tighten
Tighten the fender upper flange screws to 1.9 N.m (17 lb in).
Windshield Replacement: Long - Installation Procedure:
22. Install the air intake plenum screen.
Windshield Replacement: Long - Installation Procedure:
23. Install the plenum to hood seal.
24. Install the windshield wiper arms and washer hoses.
Windshield Replacement: Long - Installation Procedure:
25. Install the windshield side garnish moldings.
Windshield Replacement: Long - Installation Procedure:
26. Install the mirror.
Tighten
Tighten the rearview mirror screw to 1.5 N.m (13 lb in).
27. Connect the mirror electrical connector.
28. Connect the antenna lead connection (coupe).
29. Leave the windows open to avoid causing pressure when closing the doors which could cause a leak in the urethane adhesive.
30. Close the hood.
Windshield Replacement: Long - Installation Procedure:
31. Install the roof lift off panel (coupe) or raise and close the folding top (convertible).
32. Allow the windshield urethane adhesive to cure. Specifications
^ Minimum curing time of the moisture cure urethane in GM P/N 123456284 kit is 6 hours.
^ Optimum curing temperature is 22°C (72°F).
^ DO NOT use compressed air to dry (cure) urethane adhesive.
^ DO NOT drive the vehicle until the urethane adhesive is cured.