GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Park Avenue 🢒 Body and Accessories 🢒 Body Front End 🢒 Cowl Drain Valve Replacement

Removal Procedure

    Object Number: 256076 Size: SH
  1. Remove the wheelhouse assembly. Refer to Wheelhouse Panel Replacement .
  2. Remove the push-in retainer from the drain valve.
  3. Remove the 2  grommets retaining the drain valve.
  4. Remove the drain valve.

Installation Procedure

    Object Number: 256076 Size: SH
  1. In order to ease installation, apply mild soap to the grommets.

    2. Important: Ensure that the grommets are fully seated.

  2. Press the drain valve to the cowl.
  3. Install the push-in retainer.
  4. Install the wheelhouse assembly. Refer to Wheelhouse Panel Replacement .