GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

Ignition Type

Individual Ignition Coil/Module Assemblies

Firing Order

1-3-4-2

Spark Plug Type

GM P/N 12598004

Spark Plug Torque

20 N·m

15 lb ft

Spark Plug Gap

1.1-0.95 mm

0.043-0.037 in