Bravada V6-262 4.3L VIN Z (1991)
Cowl: All Technical Service Bulletins
Windshield Area - Wind Noise
SUBJECT
WIND NOISE AT DASH
(SERVICE PROCEDURE)
MODELS/YEARS
1991 BRAVADA
NUMBER:
91-T-12
CORP.REF.NO: 061007
DATE:
October 1990
SECTION:
10B
Some owners of 1991 Bravada models may experience a condition described as wind noise near the windshield.
SERVICE PROCEDURE:
This condition may result from a sealer gap, or a light application of the sealer, to the seam between the windshield and the cab frame. This light
application can separate and create a gap for air to pass through. To determine if either of these conditions have occurred, perform the following steps.
Figure 1
1.
Remove the cowl vent grille to expose the base of the windshield, windshield frame, and the plenum assembly (see Figure 1).
2.
Visually look for any sealer skips at the base on the windshield.
3.
If no gaps are found, blow compressed air at the sealer and attempt to locate air movement inside of the cab. This will help locate any non-visible
gaps.
4.
If either of the above conditions is found, reseal area with GMS type B silicone base sealant (P/N 1052917 or equivalent). Repeat step 3 to insure
all gaps have been located.
