Spark Plug Wires (5.3L): Installation

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

Install the spark plug wire to the ignition coil. See Fig 1.
Install the spark plug wire to the spark plug.
Inspect the wires for proper installation:
- Push sideways on each boot in order to inspect the seating.
- Reinstall any loose boot.

Fig 1: Removing & Installing Spark Plug Wires

Courtesy of GENERAL MOTORS CORP.