The firing order is 1-6-5-4-3-2.
This sequence applies to the 3.5-liter V6 (the J35 family) used in the Honda Pilot and is shared with related models such as the Odyssey. The order determines which cylinder fires next as the engine rotates and is essential when wiring ignition components or performing timing-related work.
Engine layout and cylinder numbering
The Honda 3.5L V6 is a 60-degree DOHC design with 24 valves. The six cylinders are numbered 1 through 6 in a standard Honda V6 arrangement. The ignition sequence follows the firing order 1-6-5-4-3-2.
Firing order details
The sequence in which the spark plugs ignite is 1-6-5-4-3-2. In practical terms, cylinder 1 fires first, followed by cylinder 6, then 5, 4, 3, and finally 2, as the engine completes each revolution.
Maintenance and verification tips
To ensure correct timing when replacing spark plugs, coils, or performing wiring work, always verify the firing order against the exact engine model and year using the factory service manual or a trusted OEM diagram. Mismatched wiring can cause misfires, rough idle, or potential damage.
Summary
For the Honda Pilot’s 3.5L V6, the firing order is 1-6-5-4-3-2. This sequence applies to the J35 family used in the Pilot and closely related Honda models; always check the specific year/model manual to confirm the exact wiring diagrams and cylinder numbering.