Windshield - Wind Noise
NO: 23-27-95GROUP: Body
DATE: May 26, 1995
SUBJECT:
Wind Noise in Cab Interior Originating from Lower Portion of Windshield
MODELS:
1993-1995 (AN) Dakota
SYMPTOM/CONDITION:
Wind noise in interior of cab originating from the lower portion of the windshield/instrument panel area, primarily lower right corner.
DIAGNOSIS:
Operating the vehicle at speeds between 30-55 MPH, listen for a whistling or rushing type noise. If noise is heard, remove the windshield wipers, washer nozzles, the cowl grille and screen (8 screws hold the cowl grille ). With a helper, use an air hose to apply air pressure under the windshield glass and weld flange in the suspected areas. From the interior, feel for a rush of air. If air leak is verified proceed with repair procedure (Figure 1).
PARTS:
1 82300235 RTV
REPAIR PROCEDURE:
This bulletin involves rolling the instrument panel down and sealing the weld flange seam, and sealing between the sheetmetal panels as needed.
NOTE:
FOR FURTHER REFERENCE OF INSTRUMENT PANEL ROLL DOWN INSTRUCTIONS, REFER TO THE DAKOTA SERVICE MANUAL (PUBLICATION NO. 81-370-5110) PAGE 8E-23.
1. Remove left and right A-pillar garnish moldings.
2. Remove left and right cowl side trim panels.
3. Remove steering column cover.
4. Lower the steering column.
5. At the base of windshield, loosen and remove the 5 flange attachment screws.
6. Loosen and remove one lower instrument panel to heater unit attachment.
7. Loosen the left and right cowl side attachment screws. It is important NOT to remove these screws as they will support the instrument panel during the repair procedure.
8. Roll the top surface of the instrument panel back away from the windshield. It may be necessary to disconnect certain connections (such as wiring for stereo speakers, door switches, and A/C heater blower motor) between the instrument panel and the sheetmetal to roll the instrument panel down.
9. inspect the weld flange seam along the lower windshield for voids or gaps (Figure 2).
10. If voids or gaps are found, seal completely with Mopar RTV, P/N 82300235.
11. Inspect the area between the windshield to windshield aperture panel, and between the windshield aperture panel to dash panel for voids or gaps in sealant (Figure 3).
12. If voids or gaps are found, seal completely with Mopar RTV, P/N 82300235. Ensure that RTV is pushed fully between the windshield and panels.
13. Allow the RTV to cure as described in instructions provided with the RTV.
14. Verify all air leaks are sealed. With a helper, use an air hose to apply air pressure under the windshield glass and weld flange in the suspected areas. If leaks are found, repeat steps 9 to 13. If no leaks are found, proceed to step 15.
15. Reconnect all connections between the instrument panel and the body (wiring, vacuum harness, heater control cable, door switches and A/C heater blower motor).
16. Roll the instrument panel up and install the five flange attachment screws. These screws should be torqued to 35 + 10 in. lbs. (4 Nm).
17. Tighten the two cowl side attachment screws. Torque to 200 + 30 in. lbs. (22.5 Nm).
18. Install one screw on the lower instrument panel to heater unit. Torque to 60 + 12 in. Is. (6.77 Nm).
19. Raise the steering column and install the steering column support bracket with two nuts. Torque the nuts to 105 + 15 in. lbs. (11.8 Nm).
20. Install the steering column cover.
21. Install the left and right lower cowl side trim panels.
22. Install the left and right A-pillar garnish moldings.
23. Install the screen and cowl using the eight attaching screws.
24. Install the washer nozzles and windshield wipers.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No: 23-50-01-96 1993-1995 (AN) 0.6 Hrs.
Road Test, Remove Wipers, Cowl and Screen, Apply Air
Pressure to Check for Air Leak.
23-50-01-97 1993-1995 (AN) 1.8 Hrs.
Road Test, Remove Wipers, Cowl and Screen, Apply Air
Pressure to Check for Air Leak, Lower Instrument Panel,
Seal Windshield to Weld Flange using RTV.
FAILURE CODE: 91 - Sealer Omitted or Skips