Firing Orders

Discover the correct firing sequences ensure smooth operation and optimal vehicle efficiency.

390 FE Firing Order (Big Block) [With Diagram]

390 Fe Firing Order With Diagram
The right way to set up your 390 FE Big Block is very important for it to work well. You ...

Spark Plug Firing Order Chart [With Diagrams]

Spark Plug Firing Order With Diagram
Spark plugs need to fire in a certain sequence to make sure the engine runs smoothly and efficiently. This sequence ...

3.5 Ecoboost Firing Order [With Diagram]

3.5 Ecoboost Firing Order With Diagram
The way your 3.5L Ecoboost engine fires is in this order: 1-4-2-5-3-6. It’s important this order is followed for the ...

Inline 4 Firing Order [With Diagram]

Inline 4 Firing Order With Diagram
The order in which the sparks ignite in your inline 4 engine is 1-3-4-2. This means the first spark goes ...

07 Tahoe Firing Order [With Diagram]

07 Tahoe Firing Order With Diagram
The firing order for your ’07 Tahoe’s engine is a specific pattern: 1-8-7-2-6-5-4-3. It starts at the first cylinder on ...