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For 1990-2009 cars only

Windnoise or High Pitched Whistle Noise Heard from Front of Vehicle While Driving at HIghway Speeds (Apply Adhesive Shim Stock)

Subject:Windnoise or High Pitched Whistle Noise Heard from Front of Vehicle While Driving at Highway Speeds (Apply Adhesive Shim Stock)

Models:2004-2008 Chevrolet Colorado
2004-2008 GMC Canyon



Condition

Some customers may comment on a windnoise or high pitched whistle noise heard from the front of the vehicle while driving at highway speeds.

Cause

This condition may be caused by a rush of air flowing over the front grille into a gap found in the lower portion of the front park turn signal lamp housing and lens.

Correction


    Object Number: 2022071  Size: SH
  1. Use masking tape to tape off the gap (1) between the grille and the lower left and right park turn signal lens. Road test the vehicle and determine the source of the windnoise.
  2. • If the park turn signal lamp is not the source of the windnoise, continue to diagnose and repair the windnoise. Refer to Interior and Exterior Windnoise in SI.
    • If the windnoise is eliminated, return to the shop and proceed to Step 2.
  3. Open the hood.

  4. Object Number: 2022073  Size: SH
  5. Disconnect the front park turn signal lamp electrical connector (1) from the front wiring harness connector. Then remove the lamp assembly by using a screwdriver to release the outboard retaining clip (2) from the front inner fender.
  6. Place the park turn signal lamp assembly with the bottom side up on a work bench.

  7. Object Number: 2022075  Size: SH
  8. Clean the center edge (1) of the park turn signal lamp where the housing meets the lens with denatured alcohol.
  9. Cut a piece of Kent Automotive® Adhesive Shim Stock, P/N 46480 or equivalent to 6 mm (¼ in) width by 47 cm (18 ½ in) length.

  10. Object Number: 2022078  Size: SH
  11. Apply the adhesive shim stock (1) to the bottom side of the park turn signal lamp around the entire center edge where the housing meets the lens.

  12. Object Number: 2022079  Size: SH
  13. Install the park turn signal lamp to the vehicle by inserting the two retaining tabs (1) toward the center of the grille assembly. Then seat the park turn signal lamp outboard retaining clip by pushing the lamp assembly back into the front inner fender.
  14. Connect the park turn signal lamp electrical connector to the front wiring harness connector.
  15. Repeat steps 2-9 for the opposite front park turn signal lamp.
  16. Close the hood.
  17. Verify that the condition is fixed.

Parts Information

Adhesive Back Shim Stock can be purchased by calling 1-888-YES KENT (1-888-937-5368) or online at www.kent-automotive.com. This closed cell foam is sold in a 30 foot roll. This roll will service nine vehicles. Please return any unused portion to parts inventory for future use.

Part Number

Description

Material Allowance

P46480

Adhesive Back Shim Stock

(1/4" X 5/32')

$2.60 (U.S.)

$2.66 (Canadian)

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

C9810*

Foam Seal Installation

0.5 hr

*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide.