If you've started noticing a lack of pep in your step or a weird screeching sound under the hood, a 2016 ram 2500 turbo replacement might be in your near future. It's one of those milestones that many 6.7L Cummins owners eventually face, usually somewhere between the 150,000 and 200,000-mile mark. While these trucks are absolute workhorses, the Variable Geometry Turbo (VGT) used in this era is a complex piece of machinery that eventually gets tired.
Dealing with a failing turbo isn't just about the loss of power; it can actually become a safety issue if your exhaust brake decides to quit while you're hauling a heavy trailer down a grade. Let's talk about why these turbos fail, what your options are, and how to get your truck back to its former glory without losing your mind in the process.
How to Tell if Your Turbo Is Throwing in the Towel
Most of the time, your Ram won't just die on the side of the road without warning. It'll usually drop some hints that something is wrong. The most common symptom is the dreaded "Limp Mode." You'll be driving along, and suddenly the truck feels like it's lost 70% of its power, and the check engine light pops on.
If you hook up a code reader and see a P00AF or a P04db, you're likely looking at an issue with the turbocharger boost control module or the internal vanes. Another dead giveaway is the exhaust brake. If you flip that switch and nothing happens when you let off the gas, the sliding nozzle inside the turbo is likely stuck.
You might also hear some physical signs. A healthy turbo has a nice, rhythmic whistle. A dying one might sound like a "dentist drill" or a high-pitched scream. If you're seeing excessive black smoke out of the tailpipe or noticing a significant drop in fuel economy, your air-to-fuel ratio is likely messed up because the turbo isn't providing the right amount of boost at the right time.
Why the 2016 Ram 2500 Turbo Fails
The Holset HE351VE turbo found in the 2016 Ram 2500 is a bit of a double-edged sword. On one hand, the VGT technology allows for incredible low-end torque and a built-in exhaust brake that saves your pads and rotors. On the other hand, the design relies on a sliding nozzle ring that moves back and forth to change the aspect ratio of the exhaust housing.
The problem? Soot. Since these trucks use Exhaust Gas Recirculation (EGR), a lot of carbon and soot passes through that turbo. Over time, that soot builds up on the sliding mechanism. Eventually, it gets so gummed up that the electronic actuator can't move it anymore. When the actuator struggles to move the ring, the internal gears can strip, or the motor can burn out. That's usually the point where you realize you're in for a replacement.
The Big Decision: Actuator Only or the Whole Turbo?
Before you go out and buy a whole new assembly, you need to figure out if it's just the actuator or the turbo itself. The actuator is the black box bolted to the side of the turbo that controls the vanes. It's a common failure point and much cheaper to replace than the whole unit.
However, there's a catch. If you replace the actuator but the internal vanes are still stuck with soot, you're just going to burn out the new actuator in a few months. A good rule of thumb is to pull the actuator off and try to move the control arm by hand. If it moves smoothly and freely, you might get away with just a new actuator. If it's stuck or feels "crunchy," you're better off doing a full 2016 ram 2500 turbo replacement.
Choosing Your Replacement Options
When you decide it's time for a new unit, you've got a few different paths you can take. Your choice depends on how you use the truck and what your budget looks like.
The Stock Replacement (Holset VGT)
If you like the way your truck drives now and you rely heavily on the factory exhaust brake, sticking with a stock Holset is the easiest way to go. You won't need a custom tune, and it's a direct bolt-in. It'll behave exactly like the truck did the day it rolled off the lot.
The Upgraded VGT
Companies like Fleece Performance or Stealth offer modified VGT turbos. These often use better bearings and larger compressor wheels. You get a bit more power and lower EGTs (Exhaust Gas Temperatures) while still keeping that integrated exhaust brake. This is a great middle-ground for guys who tow heavy but want a little more "oomph."
The Fixed-Geometry Swap (S300/S400)
Some owners get tired of the VGT headaches and decide to swap to a "fixed" turbo, like a BorgWarner S363 or S366. These are much simpler and tend to be more reliable in the long run. But, there's a massive downside: you lose the factory exhaust brake. You'll also need custom tuning to tell the truck's computer not to freak out because the VGT is missing.
What Goes Into the Labor?
I won't sugarcoat it—replacing the turbo on a 6.7 Cummins is a bit of a workout. It's tucked back against the firewall on the passenger side, and everything is heavy. You're going to be leaning over the fender for a few hours, so a topside creeper is your best friend here.
You have to drain some coolant because these turbos are water-cooled. You'll also be dealing with oil feed and drain lines. The hardest part is usually getting the nuts off the exhaust manifold studs. They've been heat-cycled thousands of times and are often rusted solid. Plenty of penetrating oil and a good set of 12-point sockets are non-negotiable.
If you're doing this in your driveway, give yourself a full day. If you're taking it to a shop, expect to pay for about 5 to 8 hours of labor. It's a straightforward job for a diesel tech, but it's tight quarters in there.
Cost Expectations
Let's talk numbers, because that's usually what hurts the most. A brand-new OEM Holset turbo can run you anywhere from $2,500 to $3,500 depending on where you buy it. Remanufactured units are cheaper, usually around $1,500 to $2,000, but you want to make sure you're buying from a reputable builder. Don't buy a "no-name" turbo off a random auction site—you'll be doing the job again in three months.
If you're paying a shop to do the 2016 ram 2500 turbo replacement, you're probably looking at a total bill between $3,500 and $5,000 when you factor in labor, gaskets, coolant, and oil. It's a bitter pill to swallow, but considering the price of a new truck these days, it's a solid investment to keep a 2016 on the road.
How to Make the New Turbo Last
Once you've spent the money and done the work, you definitely don't want to do it again. The best thing you can do for a VGT turbo is to use it. These turbos hate light loads and constant idling. The soot builds up when the engine isn't working hard.
Drive the truck. Let it get up to operating temperature. If you have an exhaust brake, leave it on all the time. Using the exhaust brake forces the sliding nozzle to move through its full range of motion, which helps "sweep" the soot off the surfaces. It sounds counterintuitive, but the more you use the VGT mechanism, the longer it tends to stay functional.
Also, stay on top of your oil changes. The turbo spins at incredibly high speeds and relies on clean oil to keep the bearings alive. Using a high-quality synthetic oil and a good filter is cheap insurance for a multi-thousand-dollar turbocharger.
Final Thoughts
A 2016 ram 2500 turbo replacement is a significant job, but it's also an opportunity to refresh the heart of your truck. Whether you go back to stock or decide to upgrade to something with a bit more whistle, getting that boost back will make the truck feel brand new again. Just remember to take your time with the manifold bolts, don't skimp on the gaskets, and maybe treat your truck to a heavy trailer pull once in a while to keep that new VGT clean. Your Cummins will thank you for it with another 200,000 miles of service.