Installation Procedure

Gap the spark plug, using round wire type spark plug gap gage.
Gap: Adjust the spark plug gap to 1.1 mm (0.043 in).

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.

Fig 1: Locating Spark Plugs

Courtesy of GENERAL MOTORS CORP.

Install the spark plugs with a spark plug socket.
Tighten: Tighten the spark plugs to 18 N.m (13 lb. in.).
Install the ignition coils. Refer to Ignition Coil(s) Replacement - Bank 1 and Ignition Coil(s) Replacement - Bank 2 .