WINDSHIELD SUPPORT MOLDING FALLS DOWN (REINSTALL MOLDING)

SUBJECT: WINDSHIELD SUPPORT MOULDING FALLS DOWN (REINSTALL SUPPORT MOULDING)

VEHICLES AFFECTED: 1993 G VANS

MODELS: ------ 1993 G-VANS BUILT AT FLINT ASSEMBLY (EXCLUDING E94 RALLY/RALLY STX)

CONDITION:

--------- Some 1993 Flint built G-Vans (identified by an "F" in the plant code position of the VIN) may exhibit a condition where the inside windshield support moulding falls down. The moulding may fall down starting at the upper right corner and continue across the top of the windshield.

CAUSE:

----- Preliminary indications show that the butyl adhesive inside of the support moulding is not adhering to the windshield pinch weld flange. This condition is NOT caused by the conversion companies or their manufacturing process. Changes have been put in place at Flint Assembly to correct this condition. Vehicles built after the following VIN breakpoints should not exhibit this condition.

GMC Truck VIN Breakpoint: PF510818 Chevrolet VIN Breakpoint: PF332831

CORRECTION:

---------- The support moulding can be re-secured to the pinch weld flange WITHOUT REMOVING the windshield.

SERVICE PROCEDURE

Refer to page 10A3-4 in the 1993 Service Manual (X-9357), Figure 4, for a view of the support moulding.

1. Remove the windshield support moulding from the upper pinch weld flange halfway down the side of the "A" pillars.

2. Apply a 1/8 inch bead of weatherstrip adhesive (P/N 12345097 or 3M #08008)* to the inside of the moulding channel.

3. Reinstall the moulding to the windshield pinch weld flange.

NOTE: A heat gun may be required to stretch and reinstall the moulding on the pinch weld flange.

*"We believe this source and their equipment to be reliable. There may be additional manufacturers of such equipment. General Motors does not endorse, indicate any preference for or assume any responsibility for the product or equipment from this firm or for any such items which may be available from other sources."

WARRANTY INFORMATION

For vehicles repaired under warranty, use:

Labour Operation Description Labour Time ---------------- ----------- ----------- C2007 Moulding, Windshield garnish See Applicable Remove and Replace Labour Time Guide

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.