Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Isuzu Ascender, 2005 GMC Envoy XUV, 2005 GMC Envoy XL, 2005 GMC Envoy, and 2005 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Spark Plug And Sparkplug Seat

Courtesy of GENERAL MOTORS CORP.

Correctly position the spark plug washer.
Inspect the spark plug gap. Adjust the gap as needed.
Specification: Spark plug gap: 1.524 mm (0.060 in)
Hand start the spark plug in the corresponding cylinder.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Tighten the spark plug.
Tighten:
- For used heads, tighten the plug to 15 N.m (11 lb ft).
- For NEW heads, tighten the plug to 20 N.m (15 lb ft).
Install the spark plug wire. Refer to Spark Plug Wire Replacement .
If removed, install the washer solvent container. Refer to Washer Solvent Container Replacement (Envoy, TrailBlazer) or Washer Solvent Container Replacement (Rainier) in Wiper/Washer Systems.