Astro Van M V6-262 4.3L VIN Z (1994)
Weatherstrip: All Technical Service Bulletins
Dutch Door - Water Leak at Weatherstrip
File In Section: 10 - Body
Bulletin No.: 46-15-02
Date: October, 1994
Subject:
Dutch Door Water Leak at Center Weatherstrip (Install New Garnish Molding and Shim)
Models:
1992-94 Chevrolet and GMC Truck M/L Vans with RPO E54
Shims and revised garnish moldings are currently being installed in production vehicles. Reference the following chart for specific vin breakpoints:
GMC
Chevrolet
Shim
RB502146
RB105463
Revised Molding
RB541904
RB206312
Condition
Some owners may comment that they are experiencing water leaks at the center top of the rear primary weatherstrip. For water leaks at a location other
than the center of the weatherstrip, see Bulletin Number 361501.
Cause
The metal flange in this area may not be thick enough to properly allow the weatherstrip to adhere to it, or the liftgate interior garnish molding may be
pushing the weatherstrip down into the vehicle instead of seating on the liftgate frame.
Correction
To repair this condition, it may be necessary to replace the liftgate interior garnish molding and add a shim near the center top of the liftgate flange. The
shim will take up the slack at the centerline of the vehicle, allowing the weatherstrip to adhere properly. The new garnish molding has a revised trim line
which will eliminate any interference between the molding and the weatherstrip. The service procedures are as follows:
To add shim:
1.
Remove the upper D-ring molding and disconnect the top center of the liftgate opening weatherstrip using 3M Release Agent (or equivalent) to
break the bond of the weatherstrip adhesive.