GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

Firing Order

1-2-3-4-5-6

Spark Plug Gap

1.02 mm

0.040 in

Spark Plug Torque

15 N·m

11 lb ft

Spark Plug Type

GM P/N 12591131

AC Delco #41-100

Spark Plug Wire Resistance

4,018 ohms per meter (1,225 ohms per ft)