The firing order for the Chrysler 3.6 L V6 (the Pentastar family) is 1-2-3-4-5-6, with the left bank labeled 1-3-5 and the right bank labeled 2-4-6. This arrangement is used on most 3.6 L engines in Chrysler, Dodge, and Jeep vehicles since the early 2010s. Verify for your exact model year if you have a unique variant.
Overview of the 3.6 L V6 and its firing order
The 3.6 L V6 is a 60-degree V6 that uses dual overhead camshafts and individual ignition references for each cylinder. The firing order determines the sequence in which spark plugs fire and combust the air-fuel mixture in each cylinder. Correctly following this order is important for smooth running, balanced vibration, and accurate diagnostics.
Cylinder numbering and bank layout
Understanding the cylinder numbering helps map the firing order to the engine’s physical layout. In the 3.6 L V6, cylinders are arranged in two banks: the left bank and the right bank. The typical numbering is:
- Left bank: 1 (front), 3 (middle), 5 (rear)
- Right bank: 2 (front), 4 (middle), 6 (rear)
With this arrangement, the firing order of 1-2-3-4-5-6 is designed to alternate between banks to promote even firing intervals and balanced operation.
Standard firing order sequence
The sequence shows the order in which the six cylinders fire during each engine cycle. The list below reflects the common arrangement used on most 3.6 L Pentastar V6 engines.
- 1
- 2
- 3
- 4
- 5
- 6
Connecting ignition components or diagnosing misfires should follow this order so that diagnostic checks mirror the engine’s actual firing pattern.
Practical notes for maintenance and diagnostics
While most 3.6 L V6 engines share the same firing order, some model-year variations or specific applications may employ different wiring schemes or coil pack configurations. Always confirm the exact firing order and cylinder numbering for your vehicle in the factory service manual or a trusted repair database. When replacing spark plugs or ignition coils, follow the manufacturer’s torque specifications and the recommended sequence to avoid cross-threading or misfires.
Summary
The Chrysler 3.6 L V6 typically fires in the order 1-2-3-4-5-6, with left bank cylinders 1-3-5 and right bank cylinders 2-4-6. This layout helps balance the engine’s firing events and is standard across most Pentastar 3.6 L engines used in modern Chrysler, Dodge, and Jeep vehicles. Always verify your exact model-year configuration if you’re performing maintenance or diagnostics.