6.7 Cummins Years To Avoid - Common Problems

The Cummins Engine has been the trusted powerhouse behind Dodge Ram trucks for over three decades. This iconic engine offers all the necessary features to make a heavy-duty vehicle exceptional - durability, reliability, power, and consistency. However, as with any product, there are certain 6.7 Cummins years to avoid.

When choosing the best Dodge Cummins year, it is important to consider its generation. Out of the five generations produced, the 4th and 5th stand out as superior options. On the other hand, the 1st, 2nd, and 3rd generations may have some shortcomings, making them less desirable for buyers. This article will thoroughly examine each generation to identify which should be avoided and which reign supreme. Additionally, common issues faced by owners of these vehicles will be discussed in detail. Let us delve into it!

6.7L Dodge Cummins Years To Avoid

The engine with a displacement of 6.7 liters, known as the Cummins, was introduced in the summer of 2007 and has remained in continuous production.

One should exercise caution when considering the purchase of a 6.7 Cummins engine, as certain models are not recommended for use due to potential reliability issues. It is advised to avoid these specific engines at all costs.

1. 2007 Dodge Cummins
2. 2008 Dodge Cummins
3. 2011 Dodge Cummins

Through extensive research, the 6.7 L engine has been shown to have minor flaws, although no product can be flawless. We must examine the obstacles faced during its development over time.

2007 Dodge Cummins Common Problems

• The particular model at hand has encountered frequent steering difficulties. Various issues have been documented, including vigorous shaking in the front end and untimely tie rod and drag link malfunctions.
• Mechanical troubles seem to plague this model, most notably regarding its engine. Malfunctions such as an illuminated check engine light or complete engine failure are common, along with oil leaks and other related problems.
• Electrical complications have also been reported for this model, particularly involving a faulty TIPM (totally integrated power module). This can result in difficulty starting the engine or other electrical malfunctions that may arise unexpectedly.

2008 Dodge Cummins Common Problems

• The current year has witnessed a surge in problems with steering, including the infamous death wobble, unusual cranking noises, and leaking of the steering box. Numerous drivers across different regions have reported these issues.
• Furthermore, there has been an increase in complaints regarding exhaust malfunctions, suspension troubles, and engine failures. These concerns have been documented by experts and mechanics alike.

2011 Dodge Cummins Common Problems

• The current model year's vehicle is plagued with suspension issues, specifically tie rod fractures and death wobble, making it a common problem amongst drivers.
•  Engine problems are widespread in this model year, including camshaft failure, difficulty starting the engine, and poor speed performance. Many car owners have reported these issues.

Which is the Best Dodge Cummins to Buy?

For those seeking the ultimate Dodge Cummins model, the 4th and 5th generations are highly recommended. These versions boast significant upgrades and cutting-edge technology, offering an exceptional driving experience.

4th Generation: 5.9L Cummins (2003 To 2008)

This current era ushered in a myriad of novel features and advancements. A fresh sense of style, design, suspension, interior elements, and engine capacity were introduced.

The appeal of these latest models is undeniable. With significantly increased horsepower and torque levels varying yearly, the highest recorded is 350! The lowest rating still boasts a commendable 305 hp.

With a range of torque power starting at 550 and reaching an impressive 650 pounds per ft., these vehicles offer governed speeds ranging between 3000-3500 RPMs. Additionally, boasting an engine oil capacity of 11.4 liters speaks volumes for their reliability.

Are they interested in transmission options? Later years offer two, while earlier models have three to choose from. Not only that, but they also feature larger intercoolers with a substantial capacity of 32 qt - making them all the more appealing.

For all these reasons and more, it is highly recommended to consider investing in this generation's automobiles for unparalleled performance and driving experience.

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5th Generation: 6.7L Cummins (2008- Present)

The current generation boasts an impressive combination of high horsepower, innovative features, and striking aesthetics. It can be further classified into two distinct sub-generations - the early years and the later years - both offer exceptional levels of horsepower ranging from 350 to 400.

They possess remarkable horsepower, and these models also showcase immense torque, ranging between 850 and 1000. These vehicles exude style and functionality with their newly designed four-door cab layout. From 2011 to 2019, a three-pedal manual transmission was available for those seeking a more hands-on driving experience. The Electronic Stability Control feature was also included in popular models such as the 2500 & 3500.

Throughout its evolution from year to year, this generation has consistently raised the bar for performance and convenience. In fact, in 2014 alone, air suspension was introduced in both the models above, and keyless ignition systems became readily available. Undoubtedly making their mark as some of Dodge Cummins' finest years yet - we highly recommend considering one from either sub-generation when searching for your next vehicle investment.

5.9 Or 6.7 Cummins: Which One Is Better?

The ongoing debate between the 5.9 and 6.7 Cummins has been a topic of discussion and confusion among many individuals. However, the ultimate answer to which one is better remains subjective.

While it is true that several features of the 6.7 engine were derived from its predecessor, there are notable differences between the two. With a horsepower of 385 and torque reaching up to 900 lb-ft, the 6.7L offers more power compared to the 5.9L's horsepower of only 325 and torque of 610 lb-ft.

Despite this significant difference in power output, many still favor the reliability of using a 5.9 engine as it produces lower levels of nitrogen oxide and cylinder pressure. On top of that, it also boasts a geometry turbo system, while its counterpart comes equipped with an EGR & DPF system and higher towing capacity.

In conclusion, both engines have unique strengths and weaknesses, making it difficult to determine which is undoubtedly better than the other without considering personal preferences and requirements.

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Final Verdict

One cannot deny the reliability and quality of Cummins Engines across all generations. Regardless of whether one chooses the 1st, 2nd, or 3rd generation, a positive experience is guaranteed. However, it must be noted that the 4th and 5th generations stand out as the superior choices. Therefore, avoiding earlier generations and opting for the exceptional performance of the 4th and 5th Generation Cummins Engines would be advisable for those without budget constraints.