The Infiniti I35 uses a 3.5-liter V6 engine known as the VQ35DE.
This engine is part of Nissan/Infiniti's VQ family and powered the I35 in its early-2000s run. It delivers smooth, confident performance for a mid-size sedan and is known for durability, with horsepower typically in the mid-to-upper 200 horsepower range and torque in the low- to mid-200 lb-ft range depending on year and trim.
Engine design and specs
Here are the core specifications that define the I35's engine.
- Displacement: 3.5 L (3,498 cc)
- Configuration: 60-degree V6
- Engine code: VQ35DE
- Induction/valvetrain: DOHC, 24 valves, Variable Valve Timing on the intake cam
- Power output: roughly 260–280 horsepower depending on model year and exhaust
- Torque: roughly 260–270 lb-ft
- Fuel delivery: sequential multiport fuel injection
- Ignition: coil-on-plug
- Transmission pairing: automatic transmissions across the era, typically 4-speed or 5-speed automatic with some trims offering manual shift mode
- Maintenance note: uses a timing chain rather than a belt
In short, the I35's heart is a versatile 3.5-liter V6 that emphasizes smooth power delivery and reliability, a hallmark of the VQ family in early-2000s Infiniti/Nissan lineups.
Context and practical considerations
Originally launched to offer a more upscale alternative in Infiniti's lineup, the I35 relied on the VQ35DE to balance everyday usability with highway-ready performance. The engine's design supports long-term durability with routine maintenance, including timely oil changes and appropriate attention to the timing chain system, which varies by model year.
Summary
The I35 is powered by a 3.5-liter V6 engine (VQ35DE), a member of Nissan/Infiniti's VQ family. It delivers mid-200s horsepower and torque in a smooth, reliable package, and is paired with automatic transmissions across its production years. This engine is widely used across several Infiniti and Nissan models from the era, underscoring its role as a dependable workhorse of the early 2000s.
Is the Infiniti I35 AWD?
Refined handling and available all-wheel drive (AWD).
What problems did the 2002 Infiniti I35 have?
Top 2002 INFINITI I35 Problems
- Drivability Issues Due to Failing Crankshaft Angle Sensor. 62 people have reported this.
- Timing Chain Rattle and Tapping Noise.
- Erratic or High Idle After Cleaning Throttle Body.
- INFINITI I35 overheating issue after valve gasket and spark plug replacement, no leaks found.
What INFINITI has 330 HP?
The power of the 2019 INFINITI Q70 sets it apart from the crowd. It comes with a 3.7-liter V6 with 330 horsepower. A 5.6-liter V8 is available for those looking for even more power at 420 hp and 417 lb-ft of torque. This INFINITI is built to perform.
Is the 2004 Infiniti I35 a good car?
The 2004 Infiniti I35 proves itself as a reliable daily driver, upheld by owners who recognize its enduring performance even as the odometer climbs. Its robust V6 engine provides confidence whether navigating city streets or open highways, embracing both swift acceleration and cruising comfort.