What year 6.7 Cummins to avoid?
The 6.7 Cummins engine is a popular diesel engine used in various heavy-duty trucks, but there are certain model years that are generally recommended to avoid. Based on the available information, the 6.7 Cummins engine from the 2007 model year is often cited as one to steer clear of.
Reasons to Avoid the 2007 6.7 Cummins Engine
The 2007 6.7 Cummins engine was the first iteration of this engine model, and it faced several issues that made it less reliable and desirable compared to later versions. Some of the key reasons to avoid the 2007 6.7 Cummins include:
- Emissions System Problems: The 2007 6.7 Cummins was the first engine to meet the stricter EPA emissions standards, which required the addition of a complex diesel particulate filter (DPF) system. This system was prone to clogging and caused various problems, including reduced fuel efficiency and power output.
- Turbocharger Issues: The turbocharger used in the 2007 6.7 Cummins was known to fail prematurely, leading to a loss of power and potential engine damage.
- Injector Problems: Some owners reported issues with the fuel injectors, which could cause rough idling, misfiring, and other performance problems.
- Overall Reliability Concerns: As a new engine design, the 2007 6.7 Cummins faced a steeper learning curve, and many owners experienced various other issues, such as leaks, sensor failures, and electrical problems.
These issues made the 2007 6.7 Cummins a less reliable and more problematic engine compared to later model years, which is why it is generally recommended to avoid this specific year if possible.
Recommended 6.7 Cummins Model Years
While the 2007 6.7 Cummins had its fair share of problems, later model years of this engine are generally considered more reliable and desirable. Some of the recommended 6.7 Cummins model years include:
- 2010-2012: These model years saw improvements to the emissions system, turbocharger, and other components, making them more reliable and durable.
- 2013-2018: The 6.7 Cummins engine continued to evolve, with further refinements and upgrades that addressed many of the earlier issues.
- 2019 and newer: The latest iterations of the 6.7 Cummins engine are considered the most reliable and technologically advanced, with enhanced performance and efficiency.
When shopping for a used truck with a 6.7 Cummins engine, it's generally recommended to avoid the 2007 model year and instead look for later model years that have benefited from the lessons learned and improvements made to this engine over time.
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 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.
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.
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.
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 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 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 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.
