GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the front wheelhouse panel. Refer to Front Wheelhouse Liner Replacement .

  2. Object Number: 457430  Size: SH
  3. Remove the push-in retainer (2) securing the cowl drain valve (3).
  4. Remove the cowl drain valve (3) from the vehicle.

Installation Procedure


    Object Number: 457430  Size: SH
  1. Install the cowl drain valve (3) to the vehicle.
  2. Install the push-in retainer (2) to secure the cowl drain valve (3).
  3. Install the front wheelhouse panel. Refer to Front Wheelhouse Liner Replacement .