Installation Procedure

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Important: A mastic/sealer/glue is inside of new liftgate weatherstrips. If a new weatherstrip in being installed, weatherstrip adhesive should not be used.

If the liftgate weatherstrip is reused, weatherstrip adhesive should be used.

Install the liftgate weatherstrip, starting at the top center of the liftgate opening position the liftgate weatherstrip to the pinch-weld flange and working down the right and left sides towards the bottom center, being careful not to stretch the liftgate weatherstrip while installing it.
Install the butt joint seam at the center of the bottom pinch-weld flange.
Use a rubber mallet to ensure full engagement of the liftgate weatherstrip to the pinch-weld flange.

Fig 1: Installing Procedure Of Weatherstrip Replacement - Lift Gate (Aztec)
Courtesy of GENERAL MOTORS CORP.
Spooning of the liftgate weatherstrip may be required to complete the installation of the liftgate weatherstrip.
Install the endgate sill plate. Refer to DOOR SILL PLATE REPLACEMENT -- END GATE .
Close the liftgate.