Interior - Wind Noise At Side Marker Lamps

9229CHEVY02

Number: 92-194-10

Section: 10

Date: May 1992

Corporate Bulletin No.: 261503

ASE No.: B1


Subject:
WIND NOISE AT SIDE MARKER LAMPS


Model and Year:
1990-92 S/T TRUCKS WITHOUT SPORT GRILLES


Owners of some 1990-1992 S/T vehicles may comment on a wind whistle through the grille in the area of the side marker lamp(s). This condition may occur as air flows through the side marker lamp bracket(s). The whistling sound is intermittent and is affected by vehicle speed/direction and wind velocity/direction.

To correct this condition, it is necessary to apply sealer along the entire leading edge of the side marker lamp(s). This eliminates the air flow through the mating surfaces of the lamp bracket(s) and the grille.

SERVICE PROCEDURE:





1. Remove the grille.

A. Remove the four grille to radiator suppod fasteners located across the top of the grille and the four fasteners located within the egg crate area of the grille.

B. Locate the two grille to fender fasteners at the bottom of the grille (one on each side). These can be either Christmas Tree style retainers or bolts:

a. If the grille has Christmas Tree style retainers, it is NOT necessary to remove them.

b. If the grille has two grille to fender bolts, remove them.

C. Disconnect the side marker lamp connectors.

2. From the back side of the grille, apply clear G.M.S. sealer (P/N 1052915 or equivalent), along the entire leading edge of the side marker lamp(s) (Figure 1, View A).

3. Reinstall the grille.

A. If the grille is equipped with Christmas Tree style retainers, one on each side of ghlle, snap the grille in place prior to torquing the remaining fasteners. If required, replace the Christmas Tree style retainers (P/N 15672328).

B. If the grille is equipped with two grille to fender bolts located at the bottom of the grille, one on each side, instead of Christmas Tree style retainers, reinstall the bolts and torque them to 1.6 - 2.2 N-m. (13-18 lbs.in.).

C. Torque the remaining eight fasteners located across the top of the grille and within the egg crate area to 1.2 - 1.6 N-m. (10-13 lbs.in.).


SERVICE PARTS INFORMATION

Part Number Description Qty/Veh

1052915 G.M.S. Sealer-Type A As Required
15672328 Retainer-Radiator Grille As Required

Parts are currently available from GMSPO.

WARRANTY INFORMATION

For vehicles repaired under warranty use:

Labor Operation: B1308

Use applicable labor time guide for labor hours.