Dropping Glass Perimeter Leaks

Dropping glass perimeter leaks not corrected by using the repair methods described earlier in inner door beltline leaks will generally be associated with a weak engagement of the glass into the glass run channel sealing sections. A visual inspection of the problem area should check for such things as local discrepancies in the glass edge or glass run channel sealing lips; exposed edges of glass that do not penetrate into glass run channel; uneven "wink-over" of the outer sealing lip along the top edge and down the vent glass division post; and a gap between the outer sealing lip and glass on the vertical leg (rear of front door only). See Figure 11.

Repair Method:
First, identify if the problem is a very local leak caused by a part discrepancy in either the glass or the glass run channel. Often hard spots on the glass run channel can be worked out without removing or replacing parts. Glass irregularities can likewise be minimized by adjusting the glass to improve the fit in the problem area. If simple finesse techniques do not work, then replace parts as required. If the problem is identified as lack of penetration/wink-over at the top of the door and/or along the vent glass division post (front door only) or applique (rear door only); then readjust the glass to optimize penetration/wink-over. Generally this means moving the glass up and rearward in the sash on the front door and up and forward in the sash on the rear door. Cycle the glass several times (with the engine running) to evaluate improvement of the glass position and road test again.

If the problem is along the rear vertical leg of the front door and gapping between glass and the outer sealing lip is evident, refer to Dealer Technical Bulletin 92-T-65 for repair.