What year 6.7 Cummins to avoid?
As a seasoned auto service provider with years of experience in car maintenance and repair, I often get asked about the reliability of specific engine models. One engine that frequently comes up in discussions is the 6.7 Cummins, known for its power and durability in heavy-duty trucks. However, not all model years are created equal. In this article, we will explore which year of the 6.7 Cummins you might want to avoid and why.
Understanding the 6.7 Cummins Engine
The 6.7 Cummins engine has been a popular choice for many truck enthusiasts since its introduction in 2007. It is renowned for its impressive torque and towing capabilities, making it a favorite among those who need a reliable workhorse. However, certain model years have been reported to have more issues than others.
Years to Avoid
While the 6.7 Cummins engine has many strengths, there are specific years that have garnered a reputation for reliability issues. Here are the years you might want to steer clear of:
- 2007.5 - 2009: These early models faced problems with the diesel particulate filter (DPF) and exhaust gas recirculation (EGR) systems, leading to performance issues and costly repairs.
- 2010: This year saw a significant number of complaints regarding the fuel system, particularly with the fuel pump, which could lead to engine failure if not addressed.
- 2012: The 2012 models had issues with the turbocharger and intercooler, which could result in reduced power and efficiency.
Common Issues with Problematic Years
Understanding the common issues associated with these years can help potential buyers make informed decisions. Here are some of the prevalent problems:
- DPF and EGR Failures: These components are crucial for emissions control, and failures can lead to significant performance drops.
- Fuel System Problems: Issues with the fuel pump can cause the engine to stall or fail to start, leading to inconvenient breakdowns.
- Turbocharger Failures: A malfunctioning turbo can severely impact engine performance and efficiency, resulting in costly repairs.
Conclusion
While the 6.7 Cummins engine is generally a robust choice for heavy-duty applications, being aware of the specific years to avoid can save you from potential headaches and expenses. If you're considering purchasing a truck with a 6.7 Cummins engine, it's wise to do thorough research and possibly consult with a trusted mechanic to ensure you're making a sound investment.
Frequently Asked Questions
What are the bad years for the 6.7 Cummins?
We recommend staying away from the 1991, 1992, 1993, 1999, 2001, 2003, 2006, 2007, 2008, and 2011 models. Many issues stem from these years. A few of the common appear in the format of transmission failure, charging system troubles, and electrical issues. These can be costly to handle and inconvenient for any driver.
What is high mileage for a 6.7 Cummins?
If your Cummins-powered RAM, TITAN XD pickup, Cummins Repowered crate engine vehicle, RV or other Cummins powered vehicle has surpassed the 100,000-mile mark, we'd be honored to have you in the Cummins High Mileage Club.
What year ram 2500 to stay away from?
General Buying Advice: Avoid The 2013-2018 Model Years
As such, if you're in the market for the most reliable RAM 2500 year, skip the 2013 to 2018 models because they're riddled with reliability woes, recalls, and complaints. For example, the 2013 model year doesn't quite hit the landing in reliability.
What is the most reliable diesel truck?
Ford 7.3L Power Stroke
As previously mentioned, the 7.3L Power Stroke is often regarded as one of the most reliable diesel engines ever produced. Its simple design, lack of complex emissions systems, and strong build make it an engine that can run for half a million miles if properly maintained.
What is the holy grail of diesel trucks?
The grail of the grail seems to be the 1998 Ram 2500 Quad Cab with a 12-valve Cummins and a manual transmission. Why? 1998 was the first year for the Quad Cab (four-door), but the last months for the 12-valve. Ram owners can tell you that the automatics in these trucks weren't a strong point.
What year did Cummins have a bad block?
The second potentially deadly flaw occurs in '99 to '02 5.9L Cummins 24-valve engines. It's known as the 53 block problem, because these engine blocks have the number 53 cast into the side of the crankcase. After years of use, the 53 blocks tend to crack until coolant starts to pour out the side of the block.
What is the most reliable Cummins engine?
There's no doubt that 5.9L Cummins is a powerhouse known for its unsurpassed rugged reliability. This engine, especially the older models, is famed for its mechanical simplicity translating into fewer things going wrong.
What Dodge Cummins to stay away from?
Therefore, you should avoid the worst model years of Dodge Cummins to get a pleasant driving experience. Due to higher problem counts and lower reliability and safety ratings, the Dodge Cummins model years from 1991 to 1993, 1999, 2003, 2006, 2007, 2008, and 2010-2013 should be avoided.
What year is 6.7 Cummins best?
To sum up: '06-'07 is a safe bet. '07-'12 6.7 is great once deleted, but a ticking time bomb on emission equipment in factory form. The '13 and newer is great if you want the newer critter comforts, power and fuel economy and not have too much of a worry on the emissions.
Why did Ford sell Cummins?
Ford stopped purchasing Cummins Engines and Allison Transmission as a cost cutting measure; brining engine production back in-house... and Caterpillar got out of the on-highway market completely after the failure of it's ACERT emissions technology.
