Gas Engine Ignition Spark Plug Replacement

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure  Remove the ignition coils. Refer to Ignition Coil Replacement .
1	Spark Plug CAUTION: Refer to Fastener Caution . Procedure  Remove the spark plug (1). Tighten  17 N.m (13 lb ft) Special Tools  EN-51149  Spark Plug Wrench For equivalent regional tools, refer to Special Tools (Diagnostic Tools) .