Installation Procedure

Fig 1: View Of Spark Plugs

Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Fastener Caution .

Using a 14 mm spark plug wrench, install the 4 spark plugs (1, 2, 3, 4) and tighten to 20 N.m (15 lb ft).
Install the ignition coils. Refer to Ignition Coil Replacement .