Firing order on the engine block

Tiny
TIM JORDAN
  • MEMBER
  • 2001 BUICK LESABRE
  • 3.8L
  • 6 CYL
  • 150,000 MILES
Firing order spark plug need to know the engine the order of cylinders on the engine block.
Thursday, March 11th, 2021 AT 4:48 PM

1 Reply

Tiny
I-SMOGEM
  • MECHANIC
  • 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
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Thursday, March 11th, 2021 AT 5:29 PM

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