LOOSE ROOF DITCH MOLDINGS (INSTALL REDESIGNED MOLDINGS)

SUBJECT: LOOSE ROOF DITCH MOLDINGS (INSTALL REDESIGNED ROOF DITCH MOLDINGS)

VEHICLES AFFECTED: 1985-92 M/L VANS

CONDITION:

--------- Some 1985-92 M/L vans may exhibit a roof ditch molding that does not remain in the ditch or appears to be distorted.

CAUSE:

----- This may be caused by poor adhesion, body variation, or shrinking due to exposed sunlight.

CORRECTION:

---------- A redesigned roof ditch molding has been developed that will provide better retention. This new design will use adhesive backed slats, similar to the luggage slats. These slats will lay inside the ditch and will re-use the existing end caps.

SERVICE PROCEDURE (FIGURE 1)

1) Remove the right and left drip moldings from the vehicle and discard.

2) To ensure proper adhesion of the molding to the roof, clean the roof ditch with a grease and wax remover or equivalent.

3) Remove adhesive cover strips.

4) Install the new roof ditch moldings to the ditch by heating the molding and the body of the vehicle with a heat gun or equivalent to approximately 27-38 degrees Celsius ( 80-100 degrees Fahrenheit) (this will promote adhesion). Use a rubber roller or equivalent to ensure that the molding is fully seated in the ditch.

SERVICE PARTS INFORMATION

Part # Description ------ ----------- 15970997 Molding Asm- Rf Pnl LH (regular length van) 15970998 Molding Asm- Rf Pnl RH (regular length van) 15970999 Molding Asm- Rf Pnl LH (ext. length van) 15971000 Molding Asm- Rf Pnl RH (ext. length van)

WARRANTY INFORMATION

For vehicles repaired under warranty, use:

Labor Op Description Labor Time -------- ----------- ---------- B7620 Molding, Right Roof Rail Drip See Applicable R&R or Replace Labor Time Guide

B7621 Molding, Left Roof Rail Drip See Applicable R&R or Replace Labor 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.