The Jeep Grand Cherokee Ecodiesel promised drivers a mix of power, fuel efficiency, and off-road ability. Many owners were excited about its V6 diesel engine, which offered more torque and lower fuel costs compared to gas versions.
However, as time passed, some common problems started to appear. If you’re thinking about buying a used Grand Cherokee Ecodiesel, or you already own one, it’s important to know what to expect.
Common Jeep Grand Cherokee Ecodiesel Problems
The Grand Cherokee Ecodiesel’s engine, made by VM Motori in Italy, is known for its strong towing ability. But it also has a record of mechanical and electronic issues. Here are the most frequent problems:
1. Exhaust Gas Recirculation (egr) Cooler Failure
The EGR cooler recycles exhaust gases to reduce emissions. Many owners have faced EGR cooler leaks, which can lead to coolant loss and, in rare cases, engine fires. Jeep even issued recalls for this problem on some 2014–2019 models.
2. Diesel Exhaust Fluid (def) System Faults
The DEF system helps the Jeep meet emissions standards. Some owners find warning lights appear for the DEF system, often because of sensor failures or crystal buildup in the tank. If ignored, the Jeep may enter limp mode, limiting power until the issue is fixed.
3. Timing Chain Tensioner Issues
A faulty tensioner can lead to timing chain slack, causing poor engine performance or even catastrophic engine failure. This problem is most common after 100,000 miles, but some drivers saw problems much earlier.
4. Oil Cooler Leaks
The oil cooler can crack and leak, leading to oil loss and possible engine damage. The leak is usually slow and hard to detect, sometimes only noticed after the oil pressure warning light comes on.
5. Turbocharger Failure
The turbocharger gives the Ecodiesel its extra power. On some vehicles, the turbo may wear out early, resulting in loss of power, whistling noises, or smoke from the exhaust.
6. Emission System Software Updates
After Jeep settled with the EPA over emissions cheating, many Ecodiesel vehicles received a software update. Some owners report reduced fuel economy and rougher driving after the update.
Model Years Most Affected
Not every Grand Cherokee Ecodiesel has problems. However, certain years are more likely to experience issues.
| Model Year | Major Problems Reported |
|---|---|
| 2014 | EGR leaks, DEF faults, oil cooler issues |
| 2015 | Turbo failure, timing chain tensioner |
| 2016–2019 | EGR cooler recall, DEF system errors |
Older models (2014–2016) seem to have the most complaints, but even newer ones are not immune, especially as they age.
Repair And Maintenance Costs
Jeep Grand Cherokee Ecodiesel repairs can be expensive. Here’s an overview of common repair costs:
| Problem | Average Repair Cost |
|---|---|
| EGR Cooler Replacement | $1,200–$1,800 |
| DEF System Repair | $500–$2,000 |
| Turbocharger Replacement | $2,000–$3,500 |
| Oil Cooler Repair | $800–$1,200 |
| Timing Chain Service | $1,500–$2,500 |
Regular maintenance—like oil changes with the correct diesel oil, frequent filter changes, and using high-quality diesel fuel—can help prevent some issues, but not all.
Real-world Ownership Experiences
Many owners love the Grand Cherokee Ecodiesel for its towing capability and highway fuel economy (up to 28 mpg). However, some drivers report spending more time at the dealership for repairs than they expected.
A common complaint is that dealer service departments sometimes struggle to diagnose diesel-specific problems, leading to long waits for parts or repairs. People living in colder climates also find that the diesel engine can be slow to start in winter, and the DEF system is more likely to freeze or fail.
Tips For Current And Future Owners
If you own or are considering a Grand Cherokee Ecodiesel, a few smart steps can help you avoid major headaches:
- Use the highest quality diesel fuel available. Poor fuel can clog injectors and damage the DEF system.
- Check for open recalls with your Jeep VIN and get them fixed as soon as possible.
- Warm up the engine before driving in cold weather to protect the turbo and DEF systems.
- Keep maintenance records. If you have a problem, good records can help with warranty claims or resale value.
- Don’t ignore warning lights. Small issues can become expensive repairs if not fixed quickly.
Most importantly, have any used Ecodiesel inspected by a diesel specialist before buying. Many regular mechanics are not familiar with the unique design and common failure points.
Ecodiesel Vs. Gasoline Grand Cherokee
Should you pick the diesel or stick with gasoline? Here’s a quick side-by-side look:
| Feature | Ecodiesel | Gasoline |
|---|---|---|
| MPG (Highway) | 27–28 | 22–25 |
| Towing Capacity (lbs) | 7,200 | 6,200–7,200 |
| Typical Repair Cost | Higher | Lower |
| Parts Availability | Less common | Widely available |
The Ecodiesel wins for highway mileage and towing, but has higher maintenance costs and can be harder to repair.
Is The Jeep Grand Cherokee Ecodiesel Worth It?
The answer depends on your needs. If you tow often and want the best fuel economy, the Ecodiesel can be a great choice—if you’re ready for extra maintenance and possible repairs.
For daily city driving and short trips, a gasoline model is usually less trouble.
One point many buyers miss: short trips and stop-and-go driving are especially hard on diesel engines and their emission systems. If you mostly drive in the city, you may have more issues with the DEF and EGR systems than someone who drives long distances.
If you want more technical details or recall information, you can visit the official NHTSA database.
Frequently Asked Questions
What Is The Most Common Jeep Grand Cherokee Ecodiesel Problem?
EGR cooler leaks are the most reported issue. They can cause coolant loss and, in some cases, engine fires. Jeep recalled many vehicles to replace the faulty part.
How Long Does A Grand Cherokee Ecodiesel Engine Last?
With proper care, the engine can last over 200,000 miles. However, issues with the turbo, EGR, or DEF system can appear much sooner.
Is The Ecodiesel More Expensive To Maintain Than The Gas Model?
Yes, repair and maintenance for the Ecodiesel are usually higher. Parts are more expensive and fewer mechanics are trained to work on this engine.
Can You Drive A Grand Cherokee Ecodiesel With The Check Engine Light On?
You should not. Many Ecodiesel problems can cause serious engine damage if ignored.
Always have the car checked by a specialist as soon as possible.
Does The Jeep Grand Cherokee Ecodiesel Have Any Recalls?
Yes, mainly for the EGR cooler and emission system software. Always check your VIN for open recalls before buying or servicing your vehicle.
Buying or owning a Jeep Grand Cherokee Ecodiesel can be rewarding if you understand the risks and care for the vehicle properly. Doing your homework and sticking to a strict maintenance schedule is the best way to enjoy this unique SUV for years to come.
