The 2010 Altima came with two engine options, so the cylinder order depends on which engine you have. The 2.5-liter inline-four uses a different firing sequence than the 3.5-liter V6. Here is how the cylinder arrangement and firing order break down for each engine option.
Two engine options in the 2010 Altima
2.5L inline-four (QR25DE)
For the 2.5L four-cylinder version, the cylinder numbering runs front to back along the single bank, and the firing sequence is specific to this inline engine. Use this as a reference when diagnosing misfires or replacing spark plugs.
Details:
- Front-to-back cylinder arrangement: 1-2-3-4.
- Firing order: 1-3-4-2.
In short, the 2.5L Altima fires in the order 1-3-4-2 with cylinders numbered 1 through 4 from the front of the engine to the rear.
3.5L V6 (VQ35DE)
The 3.5L V6 uses a V-shaped configuration with two banks of three cylinders. Cylinder numbering places odd-numbered cylinders on one bank and even-numbered cylinders on the opposite bank, with the front of the engine hosting cylinders 1 and 2. This layout is common among Nissan V6 engines and is important for correctly wiring ignition components and spark plugs.
Details:
- Cylinder bank layout: Bank 1 contains cylinders 1, 3, 5; Bank 2 contains cylinders 2, 4, 6. Front-most cylinders are 1 (left bank) and 2 (right bank).
- Firing order: 1-2-3-4-5-6.
In brief, the 3.5L Altima’s left bank runs 1-3-5 and the right bank runs 2-4-6, with a firing sequence of 1-2-3-4-5-6.
Summary
For a 2010 Nissan Altima, the cylinder order depends on the engine. The 2.5L inline-four uses cylinders 1-4 with a firing order of 1-3-4-2. The 3.5L V6 uses two banks (1-3-5 on one side, 2-4-6 on the other) with a firing order of 1-2-3-4-5-6. Always verify against your VIN-specific service manual or a trusted Nissan technical resource to ensure exact ordering for your particular vehicle.
What is the most common problem with the 2010 Nissan Altima?
Top 2010 Nissan Altima Problems
- Check Engine Light/Loss of Power Due to Throttle Body Unit Failure.
- Car Shuts off Intermittently.
- Rattle/CEL Due to Cracked Welds on Catalytic Converter Heat Shield.
- Nissan Altima sunroof drain leak causing water to accumulate on driver side floor due to pinched dra...
What cylinder is a 2010 Nissan Altima 2.5 S?
inline 4-cylinder
The 2010 Altima Sedan is available in three well-equipped models designed to appeal to a broad range of buyer needs and budgets: the 2.5 CVT and 2.5 S CVT with standard 175-horsepower 2.5-liter inline 4-cylinder, and the 3.5 SR CVT with a 270-horsepower 3.5-liter V6.
What's the firing order on a 2010 Nissan Altima?
The Nissan Altima 3.5L firing order is 1-2-3-4-5-6 and this is a standard firing sequence for Nissan's V6 engines of the time. Along with a simple firing order, the cylinder layout is also easy to memorize since the cylinders are arranged in even and odd banks.
How do I know which is cylinder 1?
This is easy to remember useful to know thank you for watching desper. Loves you all.


