Ignition System Specifications

2008 Pontiac Grand Prix BaseSECTION Ignition System Specifications
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Application Specification
Metric English
Firing Order 1-2-3-4-5-6
Spark Plug Gap (non-adjustable) 1.10 mm 0.044 in
Spark Plug Torque 20 N.m 15 lb ft
Spark Plug Type AC 41-990
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.