Chrysler 2.4L Tigershark MultiAir Engine (Design, Issues & Tuning)
Updated: Feb 4
✔ This article has been fact checked.
The 2013 Dodge Dart was the first vehicle to use the 2.4L Tigershark (Jeep ED6), an inline four-cylinder naturally aspirated gasoline engine producing around 180hp. Engineers from Chrysler and Fiat worked together to create the Tigershark/MultiAir II engine family.
The 2.4-litre version contains around 90% new or refurbished components despite the fact that the new family is based on the old "World Gas Engine", which leads to improved fuel economy and performance.
The Chrysler Tigershark engine is currently available in the:
Jeep Cherokee
Jeep Renegade
Jeep Compass
Ram ProMaster City
Fiat 500X
Fiat Toro
Table of Contents:
Chrysler 2.4L Tigershark MultiAir Engine Design
The 2.4 Tigershark's cylinder block is made of high-pressure die-cast aluminium with dry cast-iron liners. Between the engine block and the sandwich-type steel oil pan is a lightweight ladder structure for enhanced strength.
To reduce vibration, engineers installed rotating balancing shafts to the bottom of the block.
A forged steel crankshaft, powder-forged steel connecting rods, and lightweight aluminium pistons with polymer-coated piston skirts make up the engine's moving bottom parts. Piston pins have durable carbon coatings and are completely floating.
To lower the temperature of this engine, oil is sprayed via oil squirters onto the bottom of the pistons.
A 16-valve aluminium cylinder head with a single chain-driven camshaft and Fiat's electro-hydraulic MultiAir II system is mounted on top of the block. Electro-hydraulic valve actuators manage the variable valve timing and lift technology used by the MultiAir.
The MultiAir II system controls the intake valve's movements in both the open and closed states on the 2.4 litre Tigershark. The camshaft uses mechanical buckets that are polished and shimless to regulate the exhaust valves.
Each cylinder has its own intake cam lobe on the intake side. The followers of roller-finger have an effect on those lobes. Each finger follower controls a piston that has a hydraulic brake and lash adjustment.
This piston pulls oil into the valve assembly through a solenoid. When the solenoid is turned on, the valve detaches from the cam and closes under the force of the valve spring.
The valves follow a typical engine's cam profile when the solenoid is closed, this is how the MultiAir system controls valve lift and timing.
The Chrysler2.4 Tigershark is perfectly tuned for both fuel efficiency and performance due to MultiAir technology. An aluminium headcover guards the cylinder head.
Two spark plugs with coil-on-plug ignition and a standard multiport fuel injection system are included in the engine's design. The plastic intake manifold features an acoustic cover to prevent excessive noise.
On the Tigershark engine, a two-stage oil-pressure relief system keeps oil pressure at ideal levels while requiring less engine oil pumping.
Engine Specs
Manufacturer: Chrysler Plant in Dundee, Saltillo (Mexico); Trenton, Michigan (USA)
Production years: 2012-present
Cylinder block material: Aluminium
Cylinder head material: Aluminium
Fuel type: Gasoline
Fuel system: Multi-point fuel injection
Configuration: Inline
Number of cylinders: 4
Valves per cylinder: 4
Valvetrain layout: SOHC
Bore: 88.0 mm (3.46 in)
Stroke: 97.0 mm (3.82 in)
Displacement: 2,360 cc (144 cu in)
Type: Four-stroke, naturally aspirated
Compression Ratio: 10.1:1
Power: 178-184 hp (133-137 kW) at 6,250-6,400 rpm
Torque: 171-179 ft-lb (232-243 Nm) at 3,800-4,800 rpm
Firing order: 1-3-4-2
Engine oil weight: SAE 0W-20
Engine oil capacity: 5.2 litres (5.5 qt) with oil filter
Oil change interval: 10,000 miles (15,000 km) / 12 months
Applications: Chrysler 200, Dodge Dart, Jeep Cherokee, Jeep Renegade, Jeep Compass, Ram ProMaster City, Fiat 500X, Fiat Toro
Reliability & Issues
Engine oil is used to power the MultiAir system. For the 2.4 litre Tigershark's reliability, oil viscosity/quality and condition are now the main concerns. The engine's primary issue so far has been with excessive oil consumption.
Oil use increases with shorter runs, however this isn't always the case. According to reports, the piston rings of this 2.4L engine aren't functioning correctly with the cylinders. FCA dealerships explain the issues with oil consumption to their customers.
The MultiAir system is another issue. The system will malfunction if dirty oil clogs the oil tubes and solenoids. Because of the complex design with numerous small components and the time-consuming disassembly and installation process, repairing the MultiAir system is quite expensive.
Although a little noisy, it doesn't affect how long-lasting or durable it is. The 2.4-liter Tigershark may go 150-200k miles if you monitor the oil level and change it more frequently than the guidance recommends.
Is the Chrysler 2.4L Tigershark a Good Engine?
The 2.4L Tigershark engine is a four-cylinder engine that was first introduced in the 2011 model year. It has been used in a variety of vehicles, including the Jeep Cherokee and Dodge Dart.
Overall, the 2.4 litre Tigershark engine has received mixed reviews. Some drivers have reported good fuel economy and smooth operation, while others have experienced reliability issues such as cylinder head cracks and oil consumption.
One advantage of the 2.4 Chrysler Tigershark engine is its fuel efficiency. It has been rated at up to 31 miles per gallon on the highway, which is relatively good for a four-cylinder engine. It also produces decent power, with a maximum output of 184 horsepower and 171 pound-feet of torque.
However, the 2.4 L Tigershark engine has also been known to have some durability issues. There have been reports of cylinder head cracks and oil consumption problems, which can lead to costly repairs.
Some owners have also complained about rough idling and unusual engine noises.
Do All 2.4 Tigershark Engines Burn Oil?
It is not uncommon for engines to consume a small amount of oil over time, but excessive oil consumption can be a sign of a problem.
Some owners of vehicles with the 2.4 Tigershark engine have reported experiencing oil consumption issues, but it is not clear how widespread this problem is.
If you are experiencing excessive oil consumption with your 2.4 litre Tigershark MultiAir engine, it is important to have it checked out by a mechanic. Excessive oil consumption can be caused by a variety of factors, including worn piston rings, damaged cylinder walls, or a faulty valve seal.
If left unchecked, excessive oil consumption can lead to engine damage and costly repairs.
The 2.4 Tigershark engine is a decent performer with good fuel economy, but it has been known to have some reliability issues such as cylinder head cracks and oil consumption.
Tuning & Performance Upgrades
There isn't much that can be modified with this Chrysler engine; normally, a remap and the regular intake and exhaust will produce the most horsepower improvements.
Your initial move should be to install a free-flowing air filter, a less restrictive exhaust system, and a professional remap.
However, due to their tendency to burn oil quite fast, you need use caution when tuning these engines.
Images
Below are several images of the Chrysler 2.4L Tigershark MultiAir engine.
