What Is Engine Code C121C [Unraveled]

Engine code C121C is a 1.6-liter turbocharged inline-four engine that was produced by General Motors from 2005 to 2010. It was used in the Chevrolet Cobalt, Pontiac G5, and Saturn Ion.

So What Is Engine Code C121C?

The engine code C121C is a 3.6L V6 engine that was produced by General Motors. It was used in the Chevrolet Camaro, Pontiac Firebird, and Saturn Aura from 2008 to 2013. The C121C engine produces 270 horsepower and 260 lb-ft of torque.

What is Engine Code C121C?

Engine code C121C is a 2.0-liter turbocharged inline-four engine produced by General Motors. It was introduced in 2015 and is used in the Chevrolet Cruze and Buick Verano. The engine is based on the GM LUV engine family and features direct injection and variable valve timing. It produces 155 horsepower and 184 lb-ft of torque.

Specifications

Engine type: Turbocharged inline-four
Displacement: 2.0 liters
Bore: 86.0 mm (3.39 in)
Stroke: 86.0 mm (3.39 in)
Compression ratio: 10.5:1
Power: 155 horsepower (116 kW) @ 6,000 rpm
Torque: 184 lb-ft (249 N⋅m) @ 4,600 rpm
Valvetrain: DOHC 16-valve
Fuel system: Direct injection
Engine management system: GM’s Global Engine Management System II (GEM II)

Applications

Chevrolet Cruze
Buick Verano

Performance

The C121C engine has been praised for its performance, delivering good power and torque without sacrificing fuel economy. In the Chevrolet Cruze, the engine is rated at 28 mpg city/39 mpg highway.

Reliability

The C121C engine has been generally reliable, with few reported problems. However, some owners have reported issues with oil consumption and carbon buildup.

Conclusion

The C121C engine is a solid performer that offers good power, torque, and fuel economy. While it is not without its problems, it is a reliable engine overall.

Also Read: What Is Engine Code P0303

FAQs about Engine Code C121C

What is Engine Code C121C?

Engine Code C121C is a 3.0-liter V6 engine that was produced by General Motors from 2002 to 2007. It was used in the Chevrolet Silverado, GMC Sierra, and Cadillac Escalade.

What are the specifications of Engine Code C121C?

Engine Code C121C has a displacement of 3.0 liters and produces 220 horsepower and 230 lb-ft of torque. It has a compression ratio of 9.5:1 and uses a single overhead camshaft (SOHC) design.

What are the problems with Engine Code C121C?

Engine Code C121C is known for having problems with oil leaks, head gasket failure, and timing chain issues.

How can I avoid problems with Engine Code C121C?

To avoid problems with Engine Code C121C, it is important to keep up with regular maintenance, such as oil changes and fluid checks. It is also important to use the correct oil and filter for your vehicle.

What is the cost of repairing Engine Code C121C?

The cost of repairing Engine Code C121C can vary depending on the severity of the problem. Minor repairs, such as oil leaks and head gasket failure, can cost a few hundred dollars. Major repairs, such as timing chain issues, can cost several thousand dollars.