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looking at the front of the engine on the left head (drivers side) number 1 cyl. is the 1st spark plug. 2nd. plug is cyl. 3 . 3rd plug is cyl. 5 on right head (passengers side ) the first plug is cyl. 2. 2nd plug cyl. 4 . 3rd plug cyl 6. on V6 engines. V8 engines are numbered 1-3-5-7 on left head. 2-4-6-8 on right head front to rear. the firing order is 1-8-4-3-6-5-7-2 .or look on the intake maifold in front of the throttle body is the firing order is stamped on the intake maifold. on V6 engines firing order is 1-6-5-4-3-2. or look on the intake maifold. hope this will help you .

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15y ago

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