If you're tired of seeing oil residue caked all over your turbo and intercooler boots, it might be time to look into a 6.0 powerstroke ccv reroute. It's one of those modifications that most owners eventually stumble upon once they realize just how messy the factory setup actually is. The 6.0-liter Powerstroke is a workhorse, but let's be honest—it has its fair share of design quirks that can drive a truck owner crazy. One of the biggest culprits is the crankcase ventilation (CCV) system.
The way Ford and Navistar designed it from the factory, the engine vents oily crankcase vapors directly back into the intake tract, right before the turbocharger. Over time, this creates a thick, black sludge that coats everything from the turbo compressor wheel to the inside of the intercooler. If you've ever noticed your blue intercooler boots looking "sweaty" or slipping off under boost, you're looking at the direct result of the stock CCV setup. Doing a 6.0 powerstroke ccv reroute is essentially the fix for this oily headache.
Why the factory setup is such a headache
To understand why people bother with this, you have to look at what's happening inside that intake. All engines have "blow-by," which is just combustion gases that sneak past the piston rings into the crankcase. This gas is pressurized and mixed with a fine mist of engine oil. In the old days, engines just vented this to the atmosphere through a "road draft tube." But for emissions reasons, modern diesels have to recirculate those vapors.
On the 6.0 Powerstroke, that oily air gets sucked into the turbo. High-velocity oil mist hitting a turbo wheel spinning at 100,000 RPM isn't exactly ideal, but the real mess happens further down the line. That oil travels through the hot side pipe and into the intercooler. Once it hits the intercooler, it cools down and starts to pool. Eventually, you end up with a layer of oil coating the inside of your cooling fins, which actually makes the intercooler less efficient at its job.
Worst of all are the boots. The rubber and silicone boots that hold your intercooler pipes together weren't really meant to be soaked in hot engine oil 24/7. The oil breaks down the material, making it soft and spongy. This is why you'll see guys on the side of the road with a trailer, trying to tighten a clamp because their boot blew off under pressure. A 6.0 powerstroke ccv reroute stops the oil at the source, keeping your intake system bone dry.
The two main ways to reroute your CCV
When you decide to tackle a 6.0 powerstroke ccv reroute, you basically have two paths you can take. You can either vent the vapors to the atmosphere or install a catch can system. Both have their fans, and the right choice usually depends on how you use your truck and where you live.
The most common method is the "vent to atmosphere" (VTA) setup. This is the simplest and cheapest way to go. You basically take the hose coming off the driver-side valve cover, plug the hole where it used to enter the intake, and run a long piece of hose down the frame rail toward the back of the truck. It's effective because the oil is gone forever—it just drips onto the road or stays in the hose. The downside? Your truck might smell a bit more like an old tractor at red lights, and you might see a tiny puff of smoke coming from under the truck when you're idling.
The second option is a catch can or an air-oil separator. This is a more "civilized" version of the 6.0 powerstroke ccv reroute. Instead of dumping the vapor onto the ground, the hose goes into a canister that filters out the oil and lets the cleaned air either vent or return to the intake. You have to remember to drain the canister every time you change your oil, but it keeps the environment (and your driveway) a little cleaner.
Is it a difficult DIY project?
Actually, this is one of the easiest things you can do to a 6.0 Powerstroke. You don't need a degree in diesel mechanics to pull it off. Most guys can finish a 6.0 powerstroke ccv reroute in about an hour with basic hand tools.
You'll need a few feet of oil-resistant hose—usually 1-inch ID (inner diameter)—a plug for the intake (a 1-inch expansion plug or a plastic cap works great), and some heavy-duty zip ties to secure the hose along the frame. If you're buying a kit, it'll usually come with a nice CNC-machined puck that replaces the factory plastic housing on the valve cover, which looks a lot cleaner than a DIY hardware store setup.
The trickiest part is just routing the hose so it doesn't have any "dips" or "traps." You want a nice, consistent downward slope if possible. If the hose dips down and then goes back up, oil can pool in that low spot. In the summer, it's not a big deal, but in the winter, that oil and moisture can turn into a thick sludge that blocks the hose entirely.
A word of caution for cold climates
If you live somewhere where the thermometer drops well below freezing, you need to be a little careful with your 6.0 powerstroke ccv reroute. When the hot crankcase vapors hit a freezing cold hose under the truck, they condense into water and oil. If that mixture freezes solid inside the hose, your engine can't breathe.
Crankcase pressure has to go somewhere. If the CCV hose is frozen shut, that pressure is going to find the next weakest link—usually your rear main seal or your dipstick tube. I've seen guys blow out seals because their reroute hose turned into an icicle. If you're in a frigid climate, keep the hose as short as possible, use a larger diameter hose to prevent total blockage, or just switch back to the stock setup during the dead of winter. It's a small price to pay to avoid a massive oil leak.
Does it actually help performance?
In the short term, you're probably not going to feel a massive gain in horsepower just from doing a 6.0 powerstroke ccv reroute. It's not like adding a tuner or a bigger turbo. However, it is a massive win for long-term reliability.
When your intercooler is clean and free of oil, it can drop the intake air temperatures more effectively. Cooler air is denser air, and denser air means better combustion. Plus, keeping that oil out of the turbo means your variable geometry turbo (VGT) vanes are less likely to get gunked up with carbon and oil soot. It's more about "preventative medicine" for your engine than it is about winning a drag race.
Wrapping it up
At the end of the day, a 6.0 powerstroke ccv reroute is just one of those things that helps the engine run the way it was probably meant to, before the engineers had to worry about every last drop of vapor. It keeps your engine bay cleaner, saves your intercooler boots from a slow, mushy death, and ensures your turbo is breathing fresh air instead of oily mist.
Whether you go the DIY route with some heater hose from the local shop or buy a high-end kit with a fancy billet manifold, your 6.0 will thank you for it. Just keep an eye on those hoses if you live in the North, and enjoy having an intake system that doesn't look like it's been dipped in a deep fryer. It's a simple, effective mod that every 6.0 owner should at least consider if they plan on keeping their truck for the long haul.