Are you thinking about buying a Ram EcoDiesel? Be careful. Not every year of this engine lives up to the hype. Several Ram EcoDiesel years are known for major mechanical and reliability issues you will want to avoid.
Since its introduction, the 3.0L EcoDiesel V6 has helped Ram transform its 1500 lineup into a truck that balanced power and fuel efficiency. It stands out for using less fuel and still managing to provide high power output and towing capacity.
However, despite being strong and efficient, not every year has been a winner. Some models, including 2014, 2015, and 2016, came with serious problems like engine stalling, EGR cooler failures, costly repairs, and frustrating recalls.
I will never forget when my dad proudly bought a 2015 Ram 1500 EcoDiesel. But a year into the purchase, he was basically on the first name basis with the repair shop. After dealing with repeated failure, stress, exhaustion, and expensive repairs, he finally sold the truck. And we both learned a hard lesson about trusting hype over research.
I am not scaring you or suggesting you drop the idea of buying one. Instead, I am asking you to be extra careful with your purchase. In this blog, I will walk you through:
- Common problems with the EcoDiesel engine
- The worst Ram EcoDiesel years to avoid
- The best model years to consider in 2025
Launch and Rise of Ram EcoDiesel
Ram introduced its EcoDiesel in 2014 as a potent option for its popular Ram 1500 pickup. It featured a 3.0-liter V6 engine that boasted better miles per gallon and towing capacity compared to its gasoline counterparts. This engine has had almost a decade-long run across three generations. It was one of the few full-size pickup trucks offering turbo diesel in a robust V6. While the first two generation builds faced some substantial issues, the third one saw improvements in torque, horsepower, and towing limit.
The engine could produce up to 240 hp and 480 lb-ft of torque, delivering up to 20 mpg in the city and 27 mpg on the highway (as per EPA), and towing capabilities of up to 12,550 pounds (when properly equipped). These were the numbers that got my dad interested in it back then.Despite the issues, Ram EcoDiesel became a huge hit. As Ram handled the problems professionally, it became a favorite among outdoor fanatics, construction workers, contractors, people doing the heavy lifting, and long-distance travelers needing comfort in the front and that extra cargo room in the back.
Several industry experts, including Edmunds and MotorTrend, praised the trucks. They even made a point to single out the engine for its unbeatable combination of power and efficiency.
The EcoDiesel 3.0-liter V6 engine was a huge win for Ram, especially when the automaker handled all the consumer complaints and acted fast on solutions. However, Ram concluded its production in 2023.
4 Ram Ecodiesel Years To Avoid That Owners Regret Buying
Based on EcoDiesel emissions recall history, real user reviews, ASE-certified mechanics warnings, and industry experts’ outlook, 2014, 2015, 2016, and 2017 are the most problematic years for this 3.0-liter V6 diesel engine. The models from these years were plagued by issues related to engine functioning, emission systems, airbags, and EGR coolers.
Several owners and mechanics over the years reported recurring issues in these models, making ownership a financial burden. Not only were there a few recalls and hundreds of complaints registered with NHTSA, showcase these Ram EcoDiesel years to avoid in 2025.
1. 2014 Ram EcoDiesel
2014 was the debut year for the impressive Ram engine. While it created waves in the US automotive industry, it came with its fair share of teething problems. This was understandable, as most of the vehicle components, when they debut, contain some issues. Minor problems can be ignored, but the 2014 EcoDiesel was suffering from some major ones.
Owners reported numerous issues, including:
- Engine Problems: Early buyers faced issues with engine reliability. There were several complaints, ranging from loss of power to complete engine failure.
- Transmission Problems: Many buyers were outraged with the transmission acting up. Sometimes, the transmission would abnormally shift out of drive while in motion, RPM without acceleration, transmission bumping or jerking when accelerating or releasing the brake.
- Immense Noise: Noisy cold starts and noisy low-speed drives were also prominent. One owner on an online platform confirmed how he got scared the first time it happened. And despite taking the ride to a mechanic, the noise never went away. It was like driving with a drilling machine to your head.
- Exhaust System Issues: The Diesel Particulate Filter (DPF) system was another common issue for the 2014 model year. It usually led to frequent regeneration cycles and, in some cases, DPF failure.
- Recalls: This model year had 14 recalls, and most of them were related to engine control module (ECM) software updates and other emissions-related components.
If you are thinking things like How should I avoid 2014 Ram EcoDiesel engine problems, the answer is simple: just don’t buy it.
2. 2015 Ram EcoDiesel
This year’s models saw some improvements over last one. It was slightly better but still quite risky. The engine and EGR cooler continued to suffer from several issues, and the company faced 17 recalls, most of which were related to engine, fuel system, gearbox, and electrical issues.
I can personally vouch for avoiding this worst year as I have seen my dad suffer with his Ram EcoDiesel 2015 EGR cooler failure symptoms, costing him over $2,000.
Owners were crippled by prominent issues:
- Emission Control Problems: This issue was carried on from 2014 to 2015. This ongoing problem with the emissions control system led to additional software updates and recalls.
- Oil Cooler Failures: There were a huge number of buyers reporting oil cooler failures, leading to potential engine damage if not addressed immediately. It was not only expensive but also life-threatening.
- Turbocharger Issues: Not many, but some models from this year experienced turbocharger failures. This was a concern as it was leading to costly repairs that not everyone could afford. One owner shared how he was thrilled the moment he got a used Ram EcoDiesel from the second year after the launch but ended up with a busted engine in a matter of few weeks.
- Technology Failures: This bad year also suffered from GPS and Uconnect systems failing, the radio not working, and various warning lights, especially check engine light, turning up on the dashboard without any reason.
I would recommend staying away from a 2015 model even if you find one that is well-maintained. This is because even a good service history can not eliminate the inbuilt issues.
3. 2016 Ram EcoDiesel
Is 2016 Ram EcoDiesel a lemon year? Absolutely. This year worked well on handling issues related to the engine that bothered buyers in the previous years. However, the EcoDiesel wasn’t trouble-free. It came with its own streak of issues, majorly related to emissions, something that has crippled Volkswagen’s diesel models as well.
Problems like SCR catalyst system failure, airbag malfunctions, shifter linkage problems, cruise control issues, and troubles with power door locks and rear tailgates made it hard for buyers to breathe. NHTSA registered thousands of complaints leading to a total of 11 recalls.
The prominent issues were:
- EGR Cooler Failure: The exhaust gas recirculation (EGR) cooler in this year’s models was prone to cracking, leading to coolant leaks and potential engine overheating. If left unchecked, it could lead to engine failure. Replacing the engine was the only solution costing more than $4,500.
- Continuing Emission System Woes: The emission-related problems persisted this year as well. Many owners had complained about experiencing issues with the Selective Catalytic Reduction (SCR) system.
The worst part is that emission-related problems escalated due to the software upgrades that Ram introduced to comply with that time’s emission standards. One owner shared how this particular emission-related software update left their truck feeling sluggish and losing MPG.
The Ram EcoDiesel emissions software update 2016 effects led to rough idling, poor fuel efficiency, noticeable loss of power, and delayed throttle response. The fact that the models become more problematic after an update is a red flag and one of the obvious reasons why it is among the prominent years to avoid.
4. 2017 Ram EcoDiesel
2017 was the year of recalls for the EcoDiesel engine. It showed improvements from its introduction year, but problems related to emissions control and the capacity of the truck to meet emissions restrictions still lingered.
Complaints related to coolant leaks due to cracked EGR, DPF/SCR issues, and transmission shifting problems were highly common. One Reddit user explained how the performance of his 2017 Ram 1500 tanked after the recall repairs. The frustration was clear as they mentioned their truck was in better condition before those repairs.
Owners suffered from:
- EGR Cooler and Turbocharger Issues: The problems related to EGR cooler and turbocharger issues slipped into the 2017 model year. Many owners complained about these problems. However, the frequency of reports related to these issues was lower compared to previous years.
- Transmission Problems: Another old problem that made its way this far was related to transmission. Rough shifting and occasional transmission failure were prominent, costing $1,500 to $3,000+.
2018 Model Year and Beyond
From 2018 onwards, the models featuring the Ram EcoDiesel showed good improvements in reliability. The automaker was able to address many of the recurring issues, and the builds of these later model years have received fewer complaints and recalls compared to the worst years for the engine. Not only this, but the introduction of the third-generation EcoDiesel engine in 2020 brought some significant enhancements in performance and durability.
9 Most Common Problems With Ram EcoDiesel
Throughout its course of production, Ram EcoDiesel suffered from several major and minor problems related to the EGR cooler, fuel injection system, oil cooler system, turbocharger, and more. The occurrence of these issues was generally triggered when the engine was used beyond its limits. But this does not mean you can go for any 3.0L V6 EcoDiesel year.
Before you finalize your purchase simply based on beast-like towing strength, impressive handing, and high fuel efficiency, take a look at the most common issues that you can encounter. Exploring each will help you understand what signs to look out for and how to handle them.
| The major issues include: | The minor issues include: |
| Fuel injection system problems Cracked EGR cooler Turbo Failure Glow plug problems Oil cooler system malfunction | TIPM Timing chain Exhaust problems |
Fuel Injection System Problems
Generally arising after 100,000 miles of usage, the pumping motors and fuel injectors start to wear out, causing delays in fuel delivery to the engine’s combustion chambers, leading to poor performance, degrading efficiency, and a busted engine. Regular maintenance, fixing the fuel line, and replacing the fuel filter on time are the only ways to avoid this issue.
Turbocharger Failure
The turbocharger failure was a recurrent issue mainly occurring due to oil seal leaks, compressor damage, worn-out bearings, malfunctioning turbine wheels, and sticky VGT. If not handled on time, these issues eventually led to a major turbo failure and an expensive repair, costing around $400 to $4000, making it a huge matter of concern.
Cracked and Failing EGR Cooler
The cracked exhaust gas recirculation (EGR) cooling systems and diesel particulate filter (DPF) failure problems were another common yet big issue with the new Ram engine. The inappropriate hot and cold engine cycle, heat exhaustion, and body warming lead to deeper cracks and severe damage to EGR valves in EGR coolers.
This problem plagued the older model years the most. Ram did try to handle it for new model years, but the buyers were still dissatisfied with the new engines’ subpar cooling and hose quality. You can spot the EGR cooler on a 2014-2016 EcoDiesel by checking if the engine is heating up more than usual. It is the most obvious giveaway.
Glow Plug Problems
The damaged or blown-out glow plug was causing start-up problems in many models. Owners were having a hard time starting their rides. As soon as they put their keys into the ignition, they hear a brief clicking sound, but the engine does not start. The white smoke coming out of the exhaust pipe is the major symptom of this issue.
Ram glow plugs typically last around 90,000 to 120,000 miles. However, an unstable power supply, damaged wiring, an uncontrolled voltage supply, and engine overheating can cause the glow plugs to fail prematurely. If you want to avoid this issue from ruining your truck, simply replace the glow plugs as soon as you hit 100,000 miles.
Glitches in the Emission System
Ram integrated the ATGreyWolf emission system set up on the EcoDiesel. Despite being an advanced one featuring DPF, EGR valve, and SCR, it was a highly complex setup for a diesel engine. The engine was unable to keep the harmony, leading to a reduction in power and efficiency. Several owners even reported their trucks becoming slow after implementing the software updates that Ram applied to follow emissions requirements.
Oil Cooler System Malfunction
The oil cooler system was suffering from poor design. The cooler would get cracked causing oil and coolant to mix, reducing engine lubrication, overheating the entire cooling system, and causing oil pollution. This would lead to the oil temperature rising too quickly, reducing the lifespan of the engine due to oil contamination and overheating. The engine would not only get severely damaged but also fail completely if ignored.
Thus, proper maintenance is a necessity here. If the engine is not maintained well, this problem starts to arise as soon as you have 20,000 or 30,000 miles on your ride.
Costly Services
All the Ram EcoDiesel avoid years came with costly services. Whether the issue is major or minor, one has to be ready to spend at least $1,000. And if unfortunately, you need a part replacement, getting the diesel-specific parts is tricky, easily making your bill range from $3,000 to $8,000.
Timing Chain Problems
Some Ram EcoDiesels face timing chain failure issues. Ram tried to address this issue in model year 2022 by replacing the piston and valve timing intervals. Despite this, there were still some complaints about the unusual sound coming from the engine, indicating a slipped timing chain. Although it is a minor issue, it is still something prospective buyers should be aware of as it comes with expensive repairs.
TPIM Issues
The Totally Integrated Power Module (TIPM) issues are not widespread among Ram’s trucks, but they are still lingering. A faulty TPIM is a headache because it leads to many electrical problems, like a faulty AC system, power windows malfunction, coolant fans that stop working, and more.
Best Years To Buy Ram EcoDiesel
Despite the many issues haunting the buyers, EcoDiesel engines were a treat to Ram fanatics. While its older releases were somewhat nightmares, the third-gen EcoDiesel improvements made them better and more reliable.
2018, 2109, 2020, 2021, and 2022 are the best years for this Ram engine. In these model years, the engines faced the fewest issues, fewer owner complaints, decreased recalls, and increased reliability.
2020-Final Year
After the 2018 year, Ram continued the improvements in the lineup. The one released in 2021 is deemed one of the most reliable eco-diesel engines. As per many owners, the 2021 EcoDiesel is said to be more powerful, quiet, and efficient. It delivers 260 hp and 480 lb-ft of torque.
Not only this, but with it you get 12,570 pounds of towing capacity and 2,040 pounds of payload capacity. Furthermore, the fuel economy for the best years is 22 mpg in the city and 31 mpg on the highway. This all concludes that the best years for EcoDiesel are superior in terms of power output and fuel efficiency.
One humble owner shared that they have a 2021 Ram 1500 Limited with the eco diesel. They even stated it as the best truck they have ever owned. The fuel efficiency is amazing, and they regularly get 28–30 mpg.
Another one talked about how they have over 86,000 miles on their 2021 Ram EcoDiesel, which they use frequently to tow their 8,500-pound traveling trailer. They get an average of 24.5 mpg and the smoothest ride in the best interior. They would buy a new one in a heartbeat.
All these post-2020 models’ viewpoints of the owners clearly state how far the Ram EcoDiesel has come. From just being a hyped trouble to actually being a monstrous beast is the reason why despite the end of production, it is a popular search in the used car market.
What’s interesting is that it is not just the opinion of the buyers but industry experts and automotive experts. Several have openly praised third-generation and cautioned buyers of the earlier releases.
Ram EcoDiesel Maintenance Schedule
Despite the many issues haunting the buyers, EcoDiesel engines were a treat to Ram fanatics. While its older releases were somewhat nightmares, the third-gen EcoDiesel improvements made them better and more reliable.
2018, 2109, 2020, 2021, and 2022 are the best years for this Ram engine. In these model years, the engines faced the fewest issues, fewer owner complaints, decreased recalls, and increased reliability.
2020-Final Year
After the 2018 year, Ram continued the improvements in the lineup. The one released in 2021 is deemed one of the most reliable eco-diesel engines. As per many owners, the 2021 EcoDiesel is said to be more powerful, quiet, and efficient. It delivers 260 hp and 480 lb-ft of torque.
Not only this, but with it you get 12,570 pounds of towing capacity and 2,040 pounds of payload capacity. Furthermore, the fuel economy for the best years is 22 mpg in the city and 31 mpg on the highway. This all concludes that the best years for EcoDiesel are superior in terms of power output and fuel efficiency.
One humble owner shared that they have a 2021 Ram 1500 Limited with the eco diesel. They even stated it as the best truck they have ever owned. The fuel efficiency is amazing, and they regularly get 28–30 mpg.
Another one talked about how they have over 86,000 miles on their 2021 Ram EcoDiesel, which they use frequently to tow their 8,500-pound traveling trailer. They get an average of 24.5 mpg and the smoothest ride in the best interior. They would buy a new one in a heartbeat.
All these post-2020 models’ viewpoints of the owners clearly state how far the Ram EcoDiesel has come. From just being a hyped trouble to actually being a monstrous beast is the reason why despite the end of production, it is a popular search in the used car market.
What’s interesting is that it is not just the opinion of the buyers but industry experts and automotive experts. Several have openly praised third-generation and cautioned buyers of the earlier releases.
Why Did Ram Discontinue The EcoDiesel Engine?
Ram discontinued the production of their EcoDiesel engine in January 2023. One of the biggest reasons for this decision is that, like most other automakers, Ram is also shifting its focus toward electric vehicles. Ram is all under work and has said that by 2025 they will introduce a battery-electric Ram 1500 Ramcharger.
While electric vehicles are taking the world by storm, gasoline and diesel vehicles are not obsolete. Ram’s shift to EVs and discontinuing the EcoDiesel so abruptly is the reason why the demand for this engine in the used car market has gone up in the last year.
EcoDiesel is nothing but a miracle baby of Ram that you should go for if you want to own a rare build. However, to ensure you are buying something worth your money, explore the ram ecodiesel years to avoid and the years to buy. This way, you will not end up with a busted model.
Tips For Buying a Used Ram EcoDiesel
Now that we have covered everything from the best and years of EcoDiesel along with the engine’s most common problems and must-know maintenance schedule, it is time to move ahead and check how you can successfully buy the right pickup engine. Follow the tips mentioned below, and you will be able to get the best ride available on the market.
Ask For Vehicle History
Whether you are buying your EcoDiesel vehicle from a private seller or a dealership, always ask for the vehicle’s history. This will tell you if the vehicle was in any accidents in the past, if there were any issues with it, and if there were any recalls. Never buy a vehicle without having a comprehensive vehicle history report in your hands.
Ask For Maintenance Records
Used vehicles are more susceptible to issues compared to brand-new ones. So, ask your seller to provide maintenance records. This will tell you whether the vehicle was maintained well through the years or not. This will keep you from investing in a ride that is poorly maintained.
Stay Firm On Pre-Purchase Inspection
Have a trusted mechanic inspect the car thoroughly before buying it. This way, you will be able to learn if there are any underlying serious issues and can steer clear if such a thing happens. If your seller refuses to fulfill any of these three demands, it is a clear indicator that something is wrong with their vehicle, and you should drop the idea of purchasing your EcoDiesel from them.
FAQs
Why Did Ram Discontinue The EcoDiesel Engine?
Ram discontinued the production of their EcoDiesel engine in January 2023 to turn its entire focus on building electric vehicles. Ram kept its promise and introduced the 2025 Ram 1500 Ramcharger, a range-extended plug-in hybrid pickup.
As EVs are taking the world by storm, Ram just like its top competitors, including Ford, Chevrolet, Toyota, and others, is focusing its resources on electrification of its existing models and building new ones.
How can I spot an EGR cooler issue on a 2014–2016 EcoDiesel?
If you find an unexpected drop in coolant without visible leaks, white smoke coming from the exhaust, check the engine light coming on with P0401 code, engine overheating, and milky sludge formation; there is something wrong with the EGR cooler. Take your ride to a professional immediately.
What are the signs of turbo failure on early EcoDiesel models?
The loss of power, siren-like noise coming while driving, excessive smoke coming out of the tailpipe, increased oil consumption, and check engine light illuminating are the most common signs of turbocharger failure on early releases.
Has Ram addressed EcoDiesel reliability in later models?
Yes. Ram addressed many problems with the 3rd generation engine starting in 2020. The models were now less prone to engine failure, coolant leaks, overheating, and other major issues seen in previous years’ releases.
Final Thoughts
For anyone who is interested in buying a used Ram EcoDiesel, it is highly important for them to know about the problematic years of its release. 2014 and 2015 were the worst model years for the engine, and it suffered from issues related to reliability, components, technology, and more. Model years 2016 and 2017 showed improvements with still some issues lingering, whereas model years 2018 onwards are the best ones to consider. You can own them via different car buying or renting deals.
If you want to protect yourself from a failed purchase chugging down your hard-earned money, explore both the best and avoidable year of EcoDiesel, and you will surely make a profitable choice.
