2015 Dodge Journey Engine 2.4 L 4 Cylinder

Resources
2015 Dodge Journey Engine 2.4 L 4 Cylinder

The 2015 Dodge Journey, a popular crossover SUV, offered a few engine options. This article delves into the specifics of the 2.4L four-cylinder engine, a common choice for this model year. We'll explore its design, performance characteristics, common issues, and maintenance considerations, catering to automotive enthusiasts, DIY mechanics, and professional technicians alike.

Engine Overview: The 2.4L World Gas Engine (WGE)

The 2015 Dodge Journey's 2.4L engine is part of Chrysler's World Gas Engine (WGE) family, also known as the GEMA (Global Engine Manufacturing Alliance) engine. This inline four-cylinder engine is a naturally aspirated (non-turbocharged) powerplant designed for fuel efficiency and reasonable performance in everyday driving scenarios. Its designation within Chrysler is often referred to as the GEMA 2.4L.

Key specifications of the 2.4L engine in the 2015 Journey include:

  • Displacement: 2360cc (2.4 liters)
  • Configuration: Inline-4 (I4)
  • Valvetrain: 16-valve, DOHC (Double Overhead Camshaft)
  • Fuel System: Multiport Fuel Injection (MPFI)
  • Horsepower: Approximately 173 horsepower @ 6000 rpm
  • Torque: Approximately 166 lb-ft @ 4000 rpm
  • Compression Ratio: Typically around 10.5:1

The DOHC configuration, with its four valves per cylinder, allows for optimized airflow into and out of the combustion chamber, contributing to improved engine efficiency and performance compared to older SOHC (Single Overhead Camshaft) designs.

Performance and Fuel Economy

While not a powerhouse, the 2.4L engine provides adequate power for daily commuting and family hauling in the 2015 Dodge Journey. Its strength lies in its fuel economy, although it’s worth noting that the Journey, being a relatively heavy vehicle, doesn't achieve stellar MPG figures even with this engine. Expect real-world fuel economy to be around 19-20 MPG in the city and 25-26 MPG on the highway, depending on driving habits and vehicle load.

The engine is typically paired with a 4-speed automatic transmission. While reliable, this transmission is considered somewhat outdated compared to the 6-speed or 8-speed transmissions found in newer vehicles, which can impact both performance and fuel efficiency. The combination results in acceleration that can feel strained, especially when the vehicle is fully loaded with passengers and cargo.

Common Issues and Reliability

The 2.4L WGE engine is generally considered a reliable engine. However, like any engine, it's not immune to potential problems. Some common issues reported with this engine include:

  • Oil Consumption: Some owners have reported higher-than-normal oil consumption. Regular monitoring of the oil level is crucial. Using the correct viscosity oil as specified by Dodge (typically 5W-20 or 5W-30) and adhering to the recommended oil change intervals can help mitigate this issue.
  • Purge Valve Problems: A faulty purge valve in the evaporative emission control system (EVAP) can cause rough idling, stalling, and a check engine light.
  • Camshaft Position Sensor (CMP) or Crankshaft Position Sensor (CKP) Failure: These sensors are vital for engine timing. Failure can lead to starting problems or engine stalling. Diagnostics with an OBD-II scanner is essential to identify these issues.
  • Cooling System Issues: Maintaining the cooling system is crucial. Watch for leaks in hoses, the radiator, or water pump. Overheating can cause severe engine damage.

Maintenance and Care

Proper maintenance is key to ensuring the longevity and reliability of the 2.4L engine. Key maintenance tasks include:

  • Regular Oil Changes: Follow the manufacturer's recommended oil change intervals (typically every 5,000-7,500 miles).
  • Air Filter Replacement: A clean air filter ensures proper airflow to the engine. Replace it as recommended in the owner's manual.
  • Spark Plug Replacement: Replace spark plugs at the recommended interval to maintain optimal combustion.
  • Coolant Flush: Periodically flush the cooling system to remove deposits and ensure proper cooling efficiency.
  • Timing Chain Inspection: While the 2.4L engine uses a timing chain (which is generally more durable than a timing belt), it's still advisable to have it inspected periodically for wear.

By understanding the characteristics, potential issues, and maintenance requirements of the 2.4L engine in the 2015 Dodge Journey, owners, enthusiasts, and professionals can ensure optimal performance and longevity for this widely used powerplant.

Related Posts