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Cosmetic Rust on Front Bumper (Paint Affected Areas)

Subject:Cosmetic Rust on Front Bumper (Paint Affected Areas)

Models:2003-2004 Chevrolet Silverado



This bulletin is being revised to change model year information. Please discard Corporate Bulletin Number 03-08-62-003A (Section 08 -- Body and Accessories).


Condition

Some customers may comment that the front bumper is rusting around the air flow holes or the license plate holes.

Cause


Object Number: 1359753  Size: MF

The lack of chrome on the sharp edge of the bumper around the air flow holes and license plate holes may cause this condition. Refer to the illustration above.

Correction

  1. Raise the vehicle to a good working height.
  2. Clean any rust film off the bumper.

  3. Object Number: 1359780  Size: SH
  4. With a small fine flat file, file down the INSIDE edge of the bumper at a 10 degree angle (Just break the edge). Refer to the illustration above. A half round file will be needed for the curved area of the bumper.

  5. Object Number: 1373265  Size: MF
  6. Using 6.35 mm (1/4 in) fine line tape, run a clean line 1.6 mm (1/16 in) out from the edge that was just filed. Refer to the illustration above.
  7. Wipe clean with an alcohol-based cleaner.
  8. File the license plate holes at this time.
  9. Wipe clean with an alcohol-based cleaner.
  10. Tape around the outboard edge of the license plate holes.
  11. Apply the Vinyl Etch Primer and allow to dry making sure that the filed edge has been covered.
  12. Apply the Epoxy Primer and allow to dry.
  13. Apply a single-stage black paint over the primer.
  14. Remove the tape after the paint cures and clean any paint that may have wicked under the tape.
  15. Clean the bumper.

Parts Information

Use the following *Sherwin Williams products.

Part Number

Description

E2G973

Vinyl Etch Primer

R7K242

Vinyl Etch Primer Reducer

PSH4605

4.6 Epoxy Activator

PSE4600

Epoxy Primer Gray

U1-33756

Black Paint

*We believe this source and their products to be reliable. There may be additional manufacturers of such material. General Motors does not endorse, indicate any preference for or assume any responsibility for the products from this firm or for any such products which may be available from other sources.

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

B1980

Bumper Assembly, Front Air Flow Opening - Repair

0.7 hr