4n15 Engine Service Manual New Repack May 2026
Mitsubishi 4N15 engine is a 2.4L MIVEC intercooled turbocharged diesel engine. Comprehensive workshop manuals, such as those available on , provide detailed technical data for 2015–2024 models. Mitsubishi Motors Philippines Corporation Core Engine Specifications Specification Engine Type Inline 4-cylinder, 16V DOHC, MIVEC Displacement Compression Ratio Bore x Stroke 86 mm x 105.1 mm Peak Power 133 kW (181 PS) @ 3,500 rpm Peak Torque 430 N⋅m @ 2,500 rpm Timing Type Timing Chain Critical Service Adjustments Compression Pressure : Standard is 2,400 kPa, with a minimum limit of 1,700 kPa. Valve Clearance (Cold) Idle Speed : Range between 600–700 rpm. : The manual specifies ThreeBond 1217G for the rocker cover and timing chain case. Key Service Manual Chapters
- Mitsubishi FSM (Factory Service Manual): You can try searching for a digital download of the factory service manual for the 4N15 engine. Some websites offer free or paid downloads of FSMs, but be sure to verify the authenticity and accuracy of the manual.
The 4N15 delivers 133kW (181hp) of maximum power and 430Nm of peak torque, while the 4N16 ups the ante to 150kW (204hp) and 470Nm. 4n15 engine service manual new
- The Engineering: It uses a cooled EGR system that is integral to the cylinder head design (passages are cast directly into the head) rather than just an external pipe.
- The Failure Point: While this cleans up emissions, it makes the engine susceptible to carbon buildup in the cylinder head ports.
- Service Tip: If you have a customer complaining about power loss or "limp mode" without a check engine light (or with a P0400 code), the issue is often not the EGR valve itself (which is electronic and reliable), but carbon clogging the internal passages inside the head. This requires manual scraping/cooling gallery cleaning, not just a valve swap.
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