GM Service Manual Online
For 1990-2009 cars only

Ignition System Specifications

Application

Specification

Metric

English

Firing Order

1-4-2-5-3-6

Spark Plug Torque

18 N·m

13 lb ft

Spark Plug Gap

1.0-1.1 mm

0.039-0.043 in

Spark Plug Type

IZFR5K-11 NGK

SKJ16DR-M11 DENSO