GM Service Manual Online
For 1990-2009 cars only

Ignition System Specifications

Application

Specification

Metric

English

Firing Order

1-3-4-2

Spark Plug Torque

18 N·m

13 lb ft

Spark Plug Gap

1.0-1.3 mm

0.040-0.051 in

Spark Plug Type

SK20R11 DENSO