The firing order for the Pathfinder's V6 engine is 1-6-5-4-3-2.
The 2012 Nissan Pathfinder uses a Nissan V6 engine from the VQ family. This firing order is standard for the VQ-series engines, including common 3.5L and 4.0L variants that were used in Pathfinders around that era. Always verify with your vehicle’s service manual or under-hood label for your exact build, as regional variations or VIN-specific configurations can affect cylinder numbering.
Firing order specifics
Here is the typical firing order for the Pathfinder's V6 engine family. Use this as a reference for maintenance tasks like spark plug replacement.
- 1st in the sequence: Cylinder 1
- 2nd in the sequence: Cylinder 6
- 3rd in the sequence: Cylinder 5
- 4th in the sequence: Cylinder 4
- 5th in the sequence: Cylinder 3
- 6th in the sequence: Cylinder 2
Note: Cylinder numbering can vary by engine variant and bank orientation. Always map the numbers to the actual cylinders on your engine using the service manual or an under-hood stencil.
How to verify on your engine
To confirm the firing order on your 2012 Pathfinder, follow these steps:
- Identify your exact engine variant (e.g., VQ35DE 3.5L or VQ40DE 4.0L) and locate the cylinder numbering on the engine block or cylinder heads. On Nissan V6s, the left bank cylinders are typically numbered 1-3-5 and the right bank 2-4-6, with 1 and 2 near the front of the engine.
- Cross-check the ignition coil/power distribution to ensure it aligns with the 1-6-5-4-3-2 firing sequence.
- If you’re replacing spark plugs or coils, follow the service manual for torque specs and the correct positions according to the firing order.
- When in doubt, consult a Nissan dealer or the official service manual for your exact VIN and engine variant.
Remember that there can be minor market or model-year variations, so always verify with official documentation for your specific vehicle.
Summary
For the 2012 Nissan Pathfinder, the firing order commonly used by Nissan's V6 engines is 1-6-5-4-3-2. This order is standard across the VQ family, but always confirm the exact cylinder mapping for your specific engine variant and market by checking the service manual or under-hood labeling before performing ignition-related maintenance.