Imagine you're driving a F-250 towing a heavy RV up a hill when suddenly you hear a sharp "bang," the engine loses power instantly, and the dashboard displays a boost failure. You pull over, open the intercooler lines, and discover that instead of dry air, there's a thick layer of black oil inside.
This isn't an isolated incident. If you own a Ford 6.7L Powerstroke diesel engine from 2011 to 2020, your engine is "forced to breathe" engine oil every second.
Today, we'll delve into the design flaws of the Ford factory Crankcase Ventilation (CCV) system and why upgrading with a Billet Aluminum CCV Redirect Kit is the only way to protect your expensive turbo and intake system.
1. The root of the problem: The "oily" turbocharger
Under factory configuration, the CCV system of the Ford 6.7L directly vents the hot crankcase gases into the intake side of the turbocharger.
The original intention was for environmental reasons, to recirculate the exhaust back into the cylinders for combustion. But reality is harsh: this oil mist condenses and deposits when passing through the cold intercooler.
Efficiency loss: A clogged intercooler loses its heat dissipation efficiency, leading to increased exhaust gas temperature (EGT).
Turbo nightmare: The oil and grease coking on the hot turbine blades can cause imbalance in the turbo's rotation and even premature failure.
Burst pipe hazard: Intake hoses (CAC Boots) can soften and expand after prolonged exposure to engine oil. When driving under high boost conditions, the hoses may slip off instantly, causing the vehicle to break down.
2. Evaluation stage: Why choose an aluminum redirect, rather than the original plastic part?
When selecting an upgrade solution, experienced truck owners often bypass cheap plastic accessories.
Limitations of plastic parts: Original or cheap CCV boxes are made of plastic. Under the extreme high-temperature cycles in the diesel engine compartment, the plastic becomes extremely brittle. Once cracked, it leads to air leaks behind the air filter, drawing in unfiltered dust, which is fatal for high-precision 6.7L engines.
The absolute advantages of Billet Aluminum: Our redirect kit is made from CNC-machined T6-grade aircraft aluminum. It not only permanently eliminates the risk of cracking but is also equipped with high-temperature-resistant Viton seals. This is not just a one-time upgrade, but a once-and-for-all hardware reinforcement.
3. Selection Guide: Who needs this redirect kit?
Not all 6.7L owners need the same configuration, but the following three scenarios determine that you must make a change immediately:
Heavy-duty tow trucks: Long-term towing means higher boost pressure and more crankcase exhaust.
High-mileage vehicles: As piston ring wear increases, blow-by (exhaust gas leakage) will worsen exponentially, and oil buildup in the intake tract will become severe.
Racing and off-road enthusiasts: In extreme conditions, clean intake air is the foundation for maintaining power output.
4. Aftermarket and maintenance: A critical step after installation
After installing the CCV redirection kit, it doesn't mean the job is done. As a meticulous mechanic, I would give you the following advice:
"Cleaning Old Oil": When installing a new kit, be sure to disconnect the piping below the intercooler. You will be surprised to find that a whole puddle of old engine oil has already accumulated inside. If you don't clean this old oil thoroughly, your engine will continue to "blow blue smoke" for several more weeks, even making you think that the new parts aren't working effectively.
5. Frequently Asked Questions (PAA)
Will redirecting the CCV affect my fuel consumption?
No. Redirecting exhaust gas is mainly to maintain the cleanliness and dryness of the intake tract. By improving the cooling efficiency of the intercooler, it may even enhance the engine's combustion state during long-haul high-load driving.
Do I need an additional oil separator (Catch Can)?
This is a common dilemma during the selection phase. Reroute systems directly direct oil and gas to the atmosphere or the exhaust downstream, requiring no regular cleaning; while Catch Cans require you to manually drain the oil every few thousand miles. For heavy-duty trucks that do tough work, reroute solutions are more favored by seasoned drivers due to their "zero maintenance" feature.
Expert opinion: Protect your assets
Don't wait until the turbo screams or the intake manifold bursts to pay attention to the CCV system. For high-value powertrains like the 6.7L Powerstroke, keeping the intake system absolutely dry is the secret to extending its lifespan.
If you're ready to end the greasy nightmare of the intake tract, click to view our [Ford 6.7L Powerstroke Aluminum CCV Redirect Kit]. Don't let oil ruin your next road trip.
Premium Billet CCV Reroute Kit | Ford 6.7L Powerstroke | FixPartHub
$68.90
- Stop Drowning Your Turbo in Oil: The factory Crankcase Ventilation (CCV) system routes hot, oily engine vapors directly back into your intake tract. Over time, this thick oil coats your turbo compressor wheel and pools inside your intercooler, drastically reducing cooling efficiency. This reroute kit halts that oil sludge buildup instantly.
- Prevent Blown CAC Boots: Oil vapor from the stock CCV system aggressively degrades the rubber boots connecting your intercooler pipes. Once oil-soaked, these boots slip off under high boost pressure, leaving you stranded. By rerouting the oily mist, your intercooler piping stays completely dry and securely locked in place.
- Premium Billet Aluminum Construction: Don’t trust your heavy-duty diesel engine to cheap plastic fittings. Our block-off and reroute adapters are CNC-machined from solid aerospace-grade T6 billet aluminum and feature heavy-duty Viton O-rings for a permanent, leak-free seal under extreme under-hood temperatures.
- Exact 6.7L Powerstroke Fitment: Precision-engineered for a seamless, bolt-on installation. Fully compatible with 2011 through 2020 Ford F-250, F-350, F-450, and F-550 Super Duty trucks equipped with the 6.7L Powerstroke V8 Turbo Diesel.
- FixPartHub Professional Standard: Protect your expensive drivetrain investments. Pro Tip: When installing this kit, take the time to remove your lower intercooler pipe and drain the existing oil puddle that has already accumulated! Did the oil already ruin your factory boots? Browse our unlisted catalog for heavy-duty 5-ply silicone CAC boot replacements!