GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 Engine 🢒 Engine Controls - 4.8L, 5.3L, and 6.0L 🢒 Ignition System Specifications

Application

Specification

Metric

English

Firing Order

1-8-7-2-6-5-4-3

Spark Plug Wire Resistance

397-1,337 ohms

Spark Plug Torque

15 N·m

11 lb ft

Spark Plug Gap

1.01 mm

0.040 in

Spark Plug Type

GM P/N 12571164

AC Spark Plug P/N 41-985