Upgrading your L5P Duramax CCV system means addressing common failure points and improving engine longevity. The SAMexhaust Delete kit 2017-2024 L5P 6.6L Duramax CCV Reroute offers a durable solution with its aluminum alloy and rubber construction, directly improving reliability and keeping your intake system cleaner.
Why Consider a Duramax CCV Reroute Kit for Your L5P?
A Duramax CCV reroute kit is worth it for L5P owners looking to boost engine reliability and maintain cleaner internals. The factory Crankcase Ventilation (CCV) system on 2017-2024 L5P 6.6L Duramax engines is notorious for its plastic components cracking over time, leading to potential leaks and inefficient operation. This system also routes high-temperature, oil-laden charge air directly back into your intake, which can cause oil film buildup on the turbocharger and intercooler.
By installing a reroute kit, you prevent these issues. You're essentially removing a weak link in your engine's design, ensuring that oil vapors are efficiently separated and routed away from the intake. This leads to reduced carbon buildup, a cleaner intercooler, and ultimately, better and more consistent engine performance over the long term. Many owners report reduced oil deposits and trouble-free use after making this modification.
Bottom Line: A CCV reroute kit protects your L5P Duramax engine from common factory system failures and keeps your intake track significantly cleaner, making it a worthwhile investment for reliability and performance.
How Do I Choose the Best Duramax CCV Reroute Kit?
Choosing the best Duramax CCV reroute kit involves prioritizing durable materials, effective oil separation, and a design that's straightforward to install. You want a system that addresses the L5P's specific weaknesses without creating new problems.
What Should I Look for When Buying a Blowby Rerouting System?
When you're buying a blowby rerouting system for your L5P Duramax, focus on three key areas: material quality, design effectiveness, and ease of installation. A high-quality kit will feature robust materials like aluminum alloy and durable rubber hoses, ensuring it withstands engine bay temperatures and vibrations without cracking or degrading, unlike the OEM plastic components. Look for systems that prevent high-temperature charge air from the turbo from re-entering your intake horn. The SAMexhaust L5P Duramax CCV Reroute kit, for example, is made from aluminum alloy and rubber, designed to improve the reliability of the existing system. It incorporates two integrated differential drop devices within the CCV block to efficiently remove oil from the CCV supply line. This design helps maintain a clean intake track by preventing hot air and oil from recirculating through your engine, addressing a primary pain point for Duramax owners.
Furthermore, consider the overall design's ability to simplify maintenance and improve safety. A good reroute kit will often separate the CCV system from the oil fill port, providing a more convenient and secure oil fill location at the front of the motor. This removes a potential failure point associated with the factory CCV component. For similar performance upgrades, check out our guide on how to choose the best Action Clutch OE-HD Flywheel for your Subaru WRX STI.
Bottom Line: Opt for a reroute system made from durable materials like aluminum and quality rubber, with a design that effectively separates oil vapor and streamlines oil-filling access for long-term engine health.
Comparison: Common Duramax CCV Reroute Options
When considering a CCV reroute for your L5P Duramax, you'll generally find a few approaches, each with its own benefits and drawbacks. Understanding these helps you choose the option that best fits your needs and budget.
| Feature/Option | SAMexhaust L5P CCV Reroute Kit | Basic Vented to Atmosphere (VTA) / Draft Tube | Dedicated Catch Can System |
|---|---|---|---|
| Material/Durability | High-quality aluminum alloy and rubber; designed to eliminate OEM plastic failure points. | Typically simple hoses; can be less durable depending on hose quality and routing. | Often aluminum cans with various internal baffling; hoses can vary in quality. |
| Oil Separation Method | Uses integrated differential drop devices in the CCV block for efficient oil removal. | Relies on gravity and simple venting; minimal active oil separation before exit. | Filters oil vapor through baffles or mesh, collecting oil in a reservoir. |
| Maintenance | Low maintenance; removes factory components prone to failure; provides convenient oil fill. | Minimal maintenance, but may drip oil onto chassis/ground if not routed properly. | Requires periodic emptying of the catch can reservoir. |
| Installation Complexity | Moderate; involves replacing specific factory components with the kit's parts. | Relatively simple DIY; often involves basic hose routing. | Can be more complex, requiring mounting the can and routing multiple hoses. |
| Key Benefit | Improves reliability, keeps intake clean, and offers safer oil filling by addressing OEM design flaws. | Inexpensive, simple way to prevent oil recirculation into the intake. | Effectively captures oil, preventing environmental drips while keeping intake clean. |
Bottom Line: While basic VTA is simple and catch cans offer excellent oil capture, a well-designed reroute kit like the SAMexhaust option provides a balanced approach by enhancing OEM reliability, preventing recirculation, and simplifying engine maintenance.
What Are Common Mistakes When Buying a Duramax CCV Reroute?
Making an informed decision about a Duramax CCV reroute means avoiding common pitfalls that can lead to frustration or further engine issues. One frequent mistake is choosing a kit based solely on price without considering material quality. Cheap plastic components or inadequate hose material will likely fail quickly, replicating the problems you're trying to solve with the OEM system. Another common error is neglecting fitment; ensure the kit is explicitly designed for your 2017-2024 L5P 6.6L Duramax, as generic kits might not properly integrate or function as intended, leading to leaks or incorrect pressure. Improper routing of the vent hose in VTA systems can also lead to oil drips or odors in the cabin.
A significant mistake buyers make is overlooking the long-term benefits of an integrated, engineered solution. Many simply focus on getting oil out of the intake without considering efficient oil separation or simplifying the oil fill process. The SAMexhaust L5P Duramax CCV Reroute, for instance, prevents hot air and oil from entering the system and streamlines oil filling by separating the CCV system from the oil fill port, adding convenience and safety. Always confirm that your chosen kit provides a comprehensive solution, not just a workaround, to avoid future headaches.
Bottom Line: Avoid cheap, generic kits and prioritize proper fitment, durable materials, and comprehensive design features that address both oil separation and convenient maintenance.
Frequently Asked Questions
Is a blowby rerouting system worth it for my L5P Duramax?
Yes, a blowby rerouting system is highly recommended for L5P Duramax owners. It helps prevent oil film buildup in the turbo and intercooler, eliminates failure-prone OEM plastic components, and contributes to a cleaner intake tract and overall engine reliability.
What is blowby, and why is rerouting it important?
Blowby refers to combustion gases that escape past the piston rings into the crankcase. These gases contain oil vapor, which the factory CCV system usually routes back into the engine's intake. Rerouting prevents this oil vapor from contaminating your intake, keeping components cleaner and functioning more efficiently.
How difficult is it to install a Duramax CCV reroute kit?
Installation difficulty varies by kit. Many reroute kits, including the SAMexhaust system, are designed for DIY installation with basic tools, often taking a few hours. Always follow the manufacturer's instructions, or consider professional installation if you're unsure.
Does a CCV reroute affect emissions or warranty?
Modifying your vehicle's emissions system, including the CCV, can potentially affect warranty coverage and may not be legal for road use in some regions. Always check local regulations and your vehicle's warranty terms before making modifications.
How does the SAMexhaust kit improve the L5P CCV system?
The SAMexhaust kit improves the L5P CCV system by replacing fragile plastic components with durable aluminum alloy and rubber. It efficiently removes oil from the CCV supply line using integrated differential drop devices and separates the CCV from the oil fill port for a cleaner intake and safer, more convenient oil-filling.
What maintenance does a reroute kit require?
A well-designed reroute kit like the SAMexhaust system requires minimal maintenance once installed, primarily focusing on general engine health. If you opt for a catch can system, you'll need to periodically drain the collected oil. Always follow the specific maintenance guidelines provided with your chosen kit.
