Infiniti FX35, FX50 (S51) Engine Repair Manual
Comprehensive guide for repairing and maintaining Infiniti FX35 and FX50 Engines (VQ35HR, VK50VE). This manual provides step-by-step instructions, detailed diagrams, and expert tips to ensure precise handling of all engine components. Perfect for both professional mechanics and DIY enthusiasts. Free Download
| Engine FX35, FX50 (S51) 2009 Accelerator Control System | Download |
| Engine FX35, FX50 (S51) 2009 Engine Cooling System | Download |
| Engine FX35, FX50 (S51) 2009 Engine Control System | Download |
| Engine FX35, FX50 (S51) 2009 Exhaust System | Download |
| Engine FX35, FX50 (S51) 2009 Fuel System | Download |
| Engine FX35, FX50 (S51) 2009 Engine Mechanical | Download |
| Engine FX35, FX50 (S51) 2009 Engine Lubrication System | Download |
| Engine FX35, FX50 (S51) 2009 Starting System | Download |
| Engine FX35, FX50 (S51) 2010 Accelerator Control System | Download |
| Engine FX35, FX50 (S51) 2010 Engine Cooling System | Download |
| Engine FX35, FX50 (S51) 2010 Engine Control System | Download |
| Engine FX35, FX50 (S51) 2010 Exhaust System | Download |
| Engine FX35, FX50 (S51) 2010 Fuel System | Download |
| Engine FX35, FX50 (S51) 2010 Engine Mechanical | Download |
| Engine FX35, FX50 (S51) 2010 Engine Lubrication System | Download |
| Engine FX35, FX50 (S51) 2010 Starting System | Download |
| Engine FX35, FX50 (S51) 2011 Accelerator Control System | Download |
| Engine FX35, FX50 (S51) 2011 Engine Cooling System | Download |
| Engine FX35, FX50 (S51) 2011 Exhaust System | Download |
| Engine FX35, FX50 (S51) 2011 Fuel System | Download |
| Engine FX35, FX50 (S51) 2011 Engine Lubrication System | Download |
| Engine FX35, FX50 (S51) 2011 Starting System | Download |
| Engine FX35, FX50 (S51) 2012 Accelerator Control System | Download |
| Engine FX35, FX50 (S51) 2012 Engine Cooling System | Download |
| Engine FX35, FX50 (S51) 2012 Exhaust System | Download |
| Engine FX35, FX50 (S51) 2012 Fuel System | Download |
| Engine FX35, FX50 (S51) 2012 Engine Lubrication System | Download |
| Engine FX35, FX50 (S51) 2012 Starting System | Download |
Typical Engine Problems in Infiniti FX35, FX50 (S51)
The Infiniti FX35 and FX50 (S51 platform) engines may encounter a number of typical problems. Here are some of them:
Oil Consumption: High oil consumption is a common problem with the VQ35HR (FX35) and VK50VE (FX50) engines. This can be due to worn piston rings or valve seals.
Timing Chain Stretching: Over time, the timing chain can stretch, causing poor engine performance, rough running, and timing errors.
Cooling System Problems: Engines can overheat due to problems with the radiator, thermostat, or water pump, which can cause serious engine damage.
Sensors and Electronic Components: Mass Air Flow (MAF), O2 Sensors, and Crankshaft Position Sensors often fail. This can result in reduced power and poor fuel economy.
CVTCS (Changeable Valve Timing System) Problems: Problems with this system can cause the engine to be noisy when starting and rough running, especially at low RPMs.
Carbon Deposits: VK50VE (FX50) engines can suffer from carbon deposits on the valves and combustion chamber, which reduces efficiency and leads to detonation.
Fuel System Problems: Problems with the injectors and fuel pump can cause uneven fuel delivery and loss of power.
These problems can significantly impact the performance and longevity of engines, so it is important to perform regular maintenance and promptly correct any problems.