- Major and Minor Diesel Engine Repairs on all Makes and Models
- Diesel Engine Overhauls
- Tune-ups for Diesel Engines
- State-of-The-Art Computer Diagnostics
- Air Systems and Fuel Systems
- Preventive Maintenance Services
Chevy Duramax Diesel Engine Repair
Our Service uses Genuine Chevy Duramax Diesel Parts where possible and when better compatible parts are not available.
Duramax Diesel Engine Repairs Performed By Licensed and Certified Diesel Engine Mechanics
Duramax Diesel Engines are reliable and powerful, but just like all engines they need proper maintenance and repairs or severe damage may occur.
Our licensed and certified diesel mechanics are experienced with Chevy Duramax Diesel Engines. Whether you need routine maintenance, such as oil and filter changes or glow plug replacement, fuel injector replacement, or a complete Duramax Engine Rebuild, we are your Diesel Engine Mechanic Shop.
Duramax Diesel Engines We Work On:
- Duramax LB7 (2001-2004 Chevrolet Silverado HD and GMC Sierra HD)
- Duramax LLY (2004.5-2005)
- Duramax LBZ (2006-2007)
- Duramax LMM (2008-2010)
- Duramax LML (2011-2016)
- Duramax LGH (2011-2016 Chevrolet Express and GMC Savana)
- Duramax L5P (2017-)
How diesel engines work
When gas is compressed its temperature rises. A diesel engine exploits this property in order to ignite the fuel. Air is drawn into the cylinder of a diesel engine, and compressed by the rising piston. This happens at a much higher compression rate than in a spark-ignition engine.
At the top of the piston stroke diesel fuel is injected into the combustion chamber at high pressure through an atomising nozzle. It mixes with the hot, pressurised air. The resulting mixture ignites and burns very rapidly. This contained explosion causes the gas in the chamber to expand, driving the piston down with considerable force, and creating power in a vertical direction.
A gasoline engine intakes a mixture of gas and air, compresses it and ignites the mixture with a spark. A diesel engine takes in just air, compresses it and then injects fuel into the compressed air. The heat of the compressed air lights the fuel spontaneously.
A gasoline engine compresses at a ratio of 8:1 to 12:1, while a diesel engine compresses at a ratio of 14:1 to as high as 25:1. The higher compression ratio of the diesel engine leads to better efficiency.
Fuel Delivery Systems
Gasoline engines use either a carburetor or a fuel injection system to deliver the fuel to the cylinder. With a carburetor the fuel is mixed as it enters the intake manifold, long before it gets to the cylinders. In a fuel injection system the fuel is injected just before the intake stroke at the intake valve.
Diesel engines use direct fuel injection (DI), that is to say the diesel fuel is injected directly into the cylinder. The diesel engine has no spark plugs. The air it takes in is compressed and the fuel is injected directly into the cylinder where the heat caused by the air compression ignites the fuel. In the old days this meant that it exploded and expanded very quickly, making a noisy engine.
This is why most diesel cars were IDI (indirect injection); the rough behavior was fixed by injecting the fuel into a small pre-combustion chamber that is connected to the cylinder by a narrow passage.
Need Diesel Engine Service?
If We can Help Give us a Call
Call 248-478-838224175 Industrial Park Dr., Farmington Hills, MI 48335
