Installation Procedure

WARNING: This page is about a different variant/trim than selected.

Gap the spark plug, using round wire type spark plug gap gage.
Gap: Adjust the spark plug gap to 1.14 mm (0.045 in).

Fig 1: Identifying Spark Plugs
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice in Cautions and Notices.

IMPORTANT: DO NOT coat the spark plugs with anti-seize compound. Over torquing could occur and damage to the cylinder head threads may result.
Install the spark plugs with a spark plug socket.
Tighten: Tighten the spark plugs to 20 N.m (15 lb ft).
Install the ignition coils. Refer to Ignition Coil(s) Replacement .