FITMENT
- 2011-2016 6.6L Chevy GMC Duramax LML 2500 HD 3500 HD Diesel.
DESCRIPTION
Product Overview
- The factory emissions system on 6.6L Duramax LML engines introduces two common sources of intake contamination: exhaust soot from the EGR system and oily blow-by vapor from the factory CCV system. Over time, these contaminants can combine inside the intake tract, creating carbon buildup that may restrict airflow, reduce intercooler efficiency, and increase maintenance concerns.
- The 6.6L Duramax LML CCV Reroute & EGR Delete Package addresses both sources by rerouting crankcase vapors away from the intake system and simplifying the factory EGR setup. Designed to help maintain a cleaner intake environment, this complete package supports improved airflow efficiency, reduced contamination, and long-term diesel reliability.
Key Features
- Heavy-Duty Anodized Billet: CNC-machined aluminum components ensure leak-free sealing and resist severe engine bay heat and corrosion.
- Stops Carbon Sludge & Coolant Leaks: Removes the factory EGR cooler, preventing carbon sludge buildup on intake valves and eliminating internal coolant loss risks.
- Lowers Operating Temperatures: Keeps intake air cooler and cleaner while bypassing hot EGR gases to reduce overall thermal stress under heavy load.
- Dual-Source Airway Protection: Permanently blocks both oily crankcase blow-by and abrasive exhaust soot from entering the turbocharger and intake manifold.
FAQ
Q: Why is combining a CCV Reroute with an EGR Delete so effective for the LML Duramax?
A: On a stock LML, CCV oil mist acts like glue and EGR soot like powder, forming thick sludge in your intake. Deleting the EGR removes the soot and rerouting the CCV removes the oil—keeping your intake, turbo, and intercooler dry and clean.
Q: Where does the crankcase blow-by vapor go after installing the CCV reroute?
A: The kit safely redirects crankcase pressure and oil mist underneath the chassis via an oil-resistant hose, venting it into the atmosphere away from your turbo intake inlet.
Q: Does deleting the EGR and CCV increase crankcase pressure or blow-by?
A: No. The CCV reroute maintains proper crankcase ventilation by allowing blow-by vapors to vent more efficiently, helping reduce oil vapor contamination while supporting a cleaner engine environment.
Q: Will installing this CCV reroute kit cause white or blue smoke from the tailpipe?
A: No. Tailpipe oil smoke is usually caused by oil pooling inside the turbo housing and blowing into the exhaust stream. By removing oil mist from the turbo intake inlet, your turbo stays dry—which actually helps reduce oil-related exhaust smoke under boost.
