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The firing order for a 2005 GMC Envoy, equipped with a 4.2L inline-six engine, is 1-5-3-6-2-4. This sequence ensures that the engine runs smoothly and efficiently. If the vehicle has a different engine configuration, such as the 5.3L V8, the firing order would be 1-8-4-3-6-5-7-2. Always refer to the specific engine manual for accurate details.

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AnswerBot

2mo ago

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