electdanabalter.com is reader supported and a participant of the Amazon Affiliate program. We may earn a small commission from any successful purchase through the recommended links, for more details

Dodge Ram 6.7 Cummins Problems with Solution Guides

Many heavy-duty people worry about the Dodge Ram 6.7 Cummins problems. So, if you are one of the people who have to face these problems, we recommend continuing reading.

Without a doubt, Ram pickups, in general, tend to provide one of the best performances in the market.

A large number of people choose these vehicles for the transportation of heavy cargo or because of their towing capacity.

Whether it’s horsepower or torque power, this vehicle can deliver. However, despite being a high-quality vehicle, it is not a problem-free option.

Most Common Dodge Ram 6.7 Cummins Problems

Some of these drawbacks are usually quite common when dealing with a Cummins 6.7 engine.

So, if you want to be better prepared to apply the right solution, you will find the best information here.

In fact, in most cases, it is a simple solution that requires little time. Let’s see then what the Ram Cummins problems for all versions are.

1. Exhaust System Problems

One of the most common problems in a Ram truck with a Cummins 6.7 engine is undoubtedly in the Cummins exhaust system.

You need to consider these trucks as one of the most reliable options when doing various heavy-duty jobs.

Whether you need a large towing capacity or a heavy-duty truck, this truck gets the job done. However, not all components of this vehicle can offer the same life span.

Particularly trucks with 6.7 Cummins engines have also been introduced to some intermediate quality components.

In this case, the exhaust system is of intermediate quality because the materials deform after some time.

While this does not happen at first, some users indicate that the problem appears earlier.

2. Problems with EGR and DPF

Unlike the Cummins 5.9 engine, the Cummins 6.7 engine arrived to solve a set of problems of yesteryear.

In particular, it was a more modern engine that still had many of the features of the Cummins 5.9.

Either way, the Cummins 6.7 was an engine designed to work with diesel particulate filters and other emission equipment.

So, all of that resulted in a system that was too complex. In this case, users reported problems with turbocharger blockages.

Of course, this was a result of using EGR. Also, owners of these trucks faced a significant drop in fuel economy. On top of that, bad engine odors and significant power loss also occurred.

No doubt this was also due to a blockage or failure of the DPF.

Thus, the main reason may be short trips where the truck does not reach optimal engine temperatures. There are also other causes such as too much fuel or incorrect engine oil.

3. Turbocharger Problems

To understand this problem, we must consider that it is an upgrade from Cummins 5.9 to Cummins 6.7. So, this turbine turbocharger was implemented to reduce the turbo lag.

This allowed for much easier truck driving. However, the turbocharger that was implemented with a factory design had some drawbacks.

The moment the air entering the turbocharger is dirty; then this part begins to clog.

Since this is not a problem specific to the variable geometry turbocharger. On the contrary, EGR is the emission control device that malfunctions.

Therefore, this directly affects the turbocharger and decreases its life span.

4. Problems with the Engine Check Light

On a large number of occasions, an error code on the dashboard appears next to the engine check light. In this case, there is not necessarily a problem to be repaired in the engine.

So you don’t have to worry too much every time the engine check light comes on in the dashboard.

On the contrary, this could be due to a simple upgrade of some built-in parts. So, the onboard computer cannot register the new components. 

5. Problems with Injectors

Unlike other vehicles, Cummins 6.7 powered Ram trucks typically require high performance.

So, this also influences the high-pressure common rail system. In particular, this component is responsible for sending fuel in appropriate amounts to the engine.

Besides, it is an improved system compared to previous versions. That’s why the injectors working in this system can be impaired by the high performance they need to deliver.

Ram 6.7 Cummins Problems Solutions: Effective & Simplest

  • The solution to Exhaust System Problems

Here we must consider that the problem of the exhaust system is related to the specific quality of the components. So, there are not many alternatives that the owners of this vehicle can take.

So, here it is simply recommended to remove the part that has become deformed with use or time. After that, a spare part should be incorporated.

Of course, it is a better option to opt for a high-quality part instead of an original part.

Today many options on the market offer greater durability and longer life. Here each user will need a certain budget according to the quality he wants to obtain.

Anyway, it is a very powerful vehicle that requires the best parts to provide a good result. Even the spare parts of the exhaust system may require welding only in some cases.

On the other hand, the most convenient options do not require welding and are very easy to install.

This is why some users will be able to save money by hiring a mechanic to install these parts.

  • The Solution to EGR and DPF Problems

To be able to face these problems, we must consider that these are some of the inconveniences of the factory design itself.

However, this problem is already several years old, so some manufacturers have designed disposal kits.

Of course, not all kits are the same, and it is advisable to choose the most appropriate one according to each problem.

So, depending on the option chosen, it is possible to remove the Selective Catalytic Reduction (SCR) system or the Diesel Exhaust Fluid (DEF).

This way, the EGR will not present any major problems, and the engine will be able to run at temperatures not as high as before.

In particular, the removal of the DEF is not a disadvantage in a race or competition.

However, in many places, using a disposal kit is illegal. Therefore, users who wish to implement this kit should consider the paths they should take. 

  • The Solution to Turbocharger Problems

As we have mentioned before, solving EGR problems definitively can be a bit complicated.

So, here the alternative is to work specifically with the turbocharger and incorporate a part with higher performance.

In particular, the longevity of the truck and the performance of the engine is considerably reduced with a malfunctioning turbocharger.

This is why you will want to have a replacement turbocharger. However, it is not recommended here to purchase the same turbocharger from the factory.

Some years have already passed, and there are updated and more efficient turbochargers on the market.

Of course, turbocharger manufacturers are aware of this problem and have implemented the design to deal with it. 

  • The Solution to Problems with the Engine Check Light

To avoid the inconvenience of the motor check light, it is necessary to purchase a tuner. In particular, this piece is the complement that can ideally work with the onboard computer.

Thus, incorporating this complement allows the truck to be updated with the installation of new parts.

In turn, it is also possible to correctly recognize these parts and differentiate what is wrong with the new updates.

In other words, this add-on allows for a more detailed and credible analysis of what is happening inside the engine.

  • The Solution to Problems with Injectors

Here there is simply no great solution that must be incorporated with a lot of time or effort. Each owner of these Ram trucks must replace the injectors when they have reached a certain life span.

Either way, it is a solution that requires very little time and an acceptable budget.

Dodge Ram 6.7 Cummins Problems: 417K Mile Review

FAQ’s Regarding Ram 6.7 Cummins Problems

Q: What is the life expectancy of a 6.7 Cummins?

Ans: In principle, it is necessary to consider that the life of a vehicle engine can vary considerably. It is very difficult to establish a figure in which the variety of factors is wide.

However, many users claim that a Cummins 6.7 engine can provide a minimum of 300,000 miles before engine problems begin to appear. 

There are even others who indicate that these engines can achieve 400,000 miles or more.

Of course, achieving this amount of mileage or more requires a few factors. On the one hand, the frequency and use that each owner gives his RAM truck are important.

On the other hand, the frequency and type of maintenance applied to each engine are also very important.

All these factors undoubtedly have a significant influence on the total life obtained from a Cummins 6.7 liter.

Q: Is it worth deleting 6.7 Cummins?

Ans: On several occasions, owners of Cummins 6.7-liter Ram vans choose to eliminate diesel emission equipment.

These emissions equipment is often the main reason for some mechanical problems. However, eliminating the mission equipment voids the manufacturer’s factory warranty on this vehicle.

Also, many users claim that emissions equipment can be removed without the manufacturer noticing it.

Here we can mention that there is no way to hide the elimination of emissions equipment.

This is why the manufacturer will notice if you have removed this component, also voiding the factory warranty. In other words, you will have to pay for the repairs that need to be made. 

Q: Is Dodge Cummins reliable?

Ans: On the one hand, we can mention that the Dodge Cummins engine is a highly reliable engine with good performance.

We can also assure you that it is one of the most reliable options on the market when it comes to diesel engines.

Although it is not the best option, it is the most recommended one when choosing a truck for work purposes.

On the other hand, we can mention that these engines usually have some common problems. In case, some Cummins truck owners mention that transmissions are often a problem.

In particular, third-generation automatic transmissions have some drawbacks due to their design. Either way, it is still one of the most recommended options on the market. 

Q: How much power does a 6.7 Cummins have?

Ans: When people want to enjoy a pickup truck that is powerful for different heavy work, they choose this engine.

In particular, it is an engine that can be found in Ram 2500 and 3500 pickup trucks. So, this Cummins 6.7 liters turbo diesel engine offers excellent power and high performance.

Of course, this generates great confidence when transporting heavy cargo or towing.

In particular, this engine produces 1000 lb-ft of clean diesel torque and up to 400 horsepower.

Thus, this vehicle has the advantage of offering the highest towing capacity among all pickup trucks on the market. It is no coincidence that this is one of the most reliable vehicles. 

Q: Why is deleting a diesel illegal?

Ans: In this case, it is necessary to consider that in several states and countries, certain restrictions on polluting emissions have been established.

This is why manufacturers needed to introduce new, more environmentally friendly emission equipment.

So, eliminating emission reduction systems is illegal in many places. In particular, an emission reduction system allows you to work with diesel engines and reduce pollutants. 


To conclude, we can mention that this engine is still one of the most reliable with excellent performance and power.

However, this does not mean that users will not encounter Ram 6.7 Cummins problems.

So, if you encounter any of these problems, you should simply read this guide again. For one thing, the number of problems with these engines can be somewhat varied.

On the other hand, all these problems are usually not too serious due to the time or budget required.

On the other hand, some of these problems can be an excellent opportunity to continue updating these trucks.

So, considering these problems allows you to learn a little more about the actual operation of Cummins 6.7 engines.

Besides, this also allows you to be much better prepared for possible inconveniences in the mechanics that this vehicle offers. 

Leave a Comment