Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

Install the vacuum supply harness.
Install the vacuum supply lines harness and grommet (1) to the corner of the cowl panel.

Fig 1: Vacuum Supply Lines Harness & Grommet
Courtesy of GENERAL MOTORS CORP.
Insert the vacuum supply lines harness and grommet to the cowl panel hole, push inward until fully seated.
Connect the vacuum supply lines (2) to the vacuum harness.
Connect the vacuum supply lines (3) to the cowl panel under the hood.

Fig 2: Connecting Vacuum Supply Lines
Courtesy of GENERAL MOTORS CORP.