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Installation Procedure

Fig 1: Spark Plugs

Courtesy of GENERAL MOTORS COMPANY

CAUTION:

Refer to Fastener Caution .

CAUTION:

Do not coat spark plug threads with anti-seize compound. If anti-seize compound is used and spark plugs are over-torqued, damage to the cylinder head threads may result.

Install the spark plugs (1).
Specification

The spark plug gap is 1.0 mm (0.040 in).

Tighten

Tighten the plugs to 20 N.m (15 lb ft).
Install the ignition coil(s). Refer to Ignition Coil Replacement .