Installation Procedure

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: View Of Spark Plugs

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: DO NOT coat the spark plugs with anti seize compound. Over torquing could occur and damage to the cylinder head threads may result.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the spark plugs with a spark plug socket.
Tighten: Tighten the spark plugs to 20 N.m (15 lb ft).
Install the ignition coil housing. Refer to Ignition Coil Housing Replacement .