Firing order on the engine block

2001 BUICK LESABRE
150,000 MILES • 3.8L • 6 CYL
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TIM JORDAN
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  • 1 POST
Firing order spark plug need to know the engine the order of cylinders on the engine block.
Mar 11, 2021 at 4:48 PM
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I-SMOGEM
  • CERTIFIED EXPERT
  • 118 POSTS
Hi Tim,

Firing order is 1-6-5-4-3-2. Diagram below shows cylinder locations, and which ignition coil fires for which cylinder (each coil fires two cylinders). Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Glenn
Mar 11, 2021 at 5:29 PM