GM - ATS Diesel

ATS Diesel Performance for GM Duramax

At ATSDiesel.com, we share your enthusiasm for the raw power and resilience of Duramax engines. Your truck is a testament to strength, endurance, and exceptional performance, qualities that we are committed to enhancing. Our Duramax page is dedicated to empowering Duramax owners like you with the tools, knowledge, and products to not only meet but exceed expectations. Whether your focus is on dominating the track, mastering tough terrains, or optimizing for fuel efficiency and power, we are here to help you achieve your performance goals.

Our extensive array of Duramax-specific performance parts and services is meticulously designed to unlock the full potential of your engine. Explore our selection of cutting-edge turbochargers, transmission upgrades, exhaust systems, custom tuning solutions, and fuel system enhancements, all aimed at boosting your truck's performance to unprecedented levels. Our products are crafted with precision to ensure they deliver tangible improvements in power, efficiency, and engine longevity.

TURBOS

ATS Diesel | Aurora Plus Series Turbochargers

TRANSMISSIONS

ATS Diesel | Aurora Compound Turbochargers

TORQUE CONVERTERS

ATS Diesel | Aurora Single Turbochargers

MANIFOLDS

ELECTRONICS

FLEXPLATES

VALVE BODIES

TRANSMISSION COMPONENTS

2001-2004 LB7 DURAMAX

The 2001-2004 LB7 Duramax engine has several common issues. Notably, the original injectors are prone to cracking and leaking, potentially causing serious engine problems. GM provided a warranty for updated injectors, but many trucks may still have the originals. Another issue is pump rub in the transfer case, leading to fluid leaks and possible failure if not addressed early. Overheating is also a concern, particularly under heavy loads, but can often be mitigated with aftermarket cooling solutions. Rust is a significant problem, especially in regions with harsh winters, making regular inspections and rust prevention essential. Lastly, the EGR system can clog or crack, causing coolant leaks and reduced efficiency, which can be managed with regular maintenance and upgrades.

2004.5-2006 LLY DURAMAX

The 2004.5-2006 LLY Duramax engine, while generally reliable, has a few common issues that potential buyers should be aware of. One of the most frequently reported problems is overheating, which can occur under heavy loads or in hot climates due to the restrictive turbo mouthpiece. Another concern is the head gasket failure, which can be costly to repair. Additionally, the injector wire harness is prone to rubbing and causing electrical issues, though this is typically an easy fix. Regular inspection and maintenance can help mitigate these problems and ensure the longevity of the engine. If you're considering purchasing an LLY Duramax, it's advisable to check for these issues and address them promptly to maintain optimal performance.

2006-2007 LLY/LBZ DURAMAX

The 2006-2007 LLY/LBZ Duramax engines are generally reliable, but they do have some common issues. For the LLY, problems include a restrictive turbo mouthpiece, head gasket failures, and injector wire harness rubbing. These issues are relatively easy to fix. The LBZ engines are more robust, with fewer reported problems, but it's always good to check for any potential injector and head gasket issues. Overall, the LBZ benefits from a six-speed transmission, which is a significant advantage.

2007.5-2010 LMM DURAMAX

The 2007.5-2010 LMM Duramax engine faces several common issues. These include diesel particulate filter (DPF) failures, injector problems, and EGR valve malfunctions. Overheating, particularly under heavy load or in hot conditions, is also a concern, often due to a restrictive factory air intake system. Additionally, water pump leaks and fuel pressure relief valve issues are frequent. Regular maintenance and timely upgrades can help mitigate these problems.

2011-2016 LML DURAMAX

The 2011-2016 LML Duramax engines had several common problems. The CP4.2 injection pump often failed, causing engine damage from metal shavings. DEF system issues included tank heater and pump failures. EGR valve and cooler failures were frequent, affecting performance and emissions. The 9th injector, crucial for the diesel particulate filter regeneration, often clogged or failed. Additionally, NOx sensors were prone to failure, triggering check engine lights and costly repairs.

2017-2019 L5P DURAMAX

The 2017-2019 L5P Duramax engines have a few common issues that owners and potential buyers should be aware of. Key problems include NOx sensors, DEF heaters and tanks, and injector electrical plugs. Calibration updates, which are not covered under GM's warranty, have also been a point of concern. Original injectors have seen several revisions due to intermittent emissions faults. Additionally, there have been restrictions on certain parts, although many have been lifted. Despite these issues, many owners report that their vehicles run great when these problems are addressed.

2020-Current L5P Duramax

The 2020-current L5P Duramax engines commonly face issues like calibration data updates not covered by GM's warranty, problematic NOx sensors, injector problems, and the importance of maintaining Diesel Exhaust Fluid (DEF) levels to avoid high costs. Proper maintenance and awareness of these issues can help maintain engine performance.