Skip to Content

Navistar MaxxForce DT Engine Problems Explained

If you are wondering why you should have your Navistar MaxxForce DT engine remanufactured, this article is for you. You will find out why you need a new engine, why you should choose remanufactured parts, and how to maximize fuel efficiency with the DT466E. Ultimately, you will be able to make a better decision about your next truck engine.

Navistar MaxxForce DT engine problems

While the 2007-2009 Navistar MaxxForce DT was not without its share of engine problems, there are some common issues with the newer models. These problems include a clogged DPF and EGR cooler. The 2007 model was the first to use this particular engine, which was also common in late-model buses. In contrast, the 2010+ MaxxForce DT features a compound turbo system.

The company stopped manufacturing these engines in 2013 after the EPA fined them for not meeting its emission standards. While Navistar has not commented on the pending litigation, it has denied that the engines are defective. However, the company has acknowledged that they did test the engines before releasing them onto the market. According to a lawsuit filed earlier this week, Navistar was aware of the problems with the MaxxForce engines and hid them from buyers.

The first problem with the Maxxforce engine was the leaking turbo air control valve. Navistar was able to resolve the problem by hardwiring the valve to the ECM. Next, the company made the EGR valve shaft 30% larger and removed sharp edges from the system. Finally, Navistar redesigned the EGR cooler to eliminate any risk of future leaks. Regardless of what the problem is, it’s important to have the engine checked by a trained professional.

DT466 / MaxxForce DT engine remanufactured

Remanufactured DT466 / MaxxForge DT engines have many benefits, especially for trucks. They are built to meet the tough requirements of the industry, including those of international delivery trucks and school buses. The DT466 engine is available at a lower price than new. DT466 engines have excellent reliability, and can be purchased for less than half the cost of OEM parts.

DT466 / MaxxForge DT engines are much easier to fix than their mechanical counterparts. The engine’s cast iron block and cylinder head are easy to replace without removing it from the vehicle. It has electronic emissions reduction systems and is able to be rebuilt to factory specifications without the need for disassembly. However, this does not mean that the DT466 is without fault. Moreover, some owners have reported problems with this engine’s cylinders.

The DT466 / MaxxForforce DT engine has a base design that’s similar to that of the 466E. In 2007, it was rebranded with the MaxxForce brand. In 2007, the company changed the name to MaxxForce, indicating it complied with emissions regulations for the model. It still includes the same design as the 466.

DT466E remanufactured

If you’re in the market for a remanufactured truck engine, you’ve probably heard of the International DT466E. This 7.6L diesel is a relatively easy-to-find and relatively inexpensive replacement part. International DT466E engines are also known as MaxxForce DT engines, and are highly regarded for their reliability and mechanical simplicity. Fortunately, they’re relatively easy to work on and can be easily found at most auto parts stores.

There are a few potential problems with this model. One of them involves compressed air used to pump oil into the engine. When the air gets into the engine, it can mess with the HEUI system, causing the engine to refuse to start. Another problem affecting these engines is the fact that they have more parts and sensors than their predecessors, so they’re more susceptible to malfunctions.

Another problem with this model is that it’s hard to change the oil. The DT466E is not designed for regular gasoline, but it does accept lower biodiesel blends and ultra-low sulfur fuels. It also requires synthetic oil with a certain API classification. The cost of changing oil for a DT466E is about $100, depending on the manufacturer.

DT466E fuel economy

While fuel economy may be a top priority for you, the DT466 engine does have a few drawbacks. It has a short service life and is susceptible to fuel leaks. This is why the manufacturer recommends regular oil and coolant changes to keep it running smoothly. The return line of the injectors, made of rubber, often cracks and dries out, so you’ll want to replace it every few years. The good news is that it’s relatively inexpensive to replace this part.

The DT466 was part of the DT engine family and is an inline-six design. It features a large cast-iron cylinder block and cylinder head that weigh a combined 250 pounds. While its low fuel economy makes it less practical for many drivers, it does have some benefits. The DT466/DT466E engine features a high chrome content and is exposed to the engine’s coolant. It also features HEUI injection, which means that the fuel injectors are actuated by high-pressure engine oil.

The DT466E engine is not particularly powerful. It produces only 300 horsepower and 860 lb-ft of torque. It’s not exactly a super truck, but it is far from bad by today’s standards. There are modern light-duty trucks with engines that produce more than 1,000 horsepower. And if that’s not enough, you can even find the DT466E in a school bus.

DT466E performance

Boosting the horsepower of your Maxxforce DT466E tractor is possible with the use of various aftermarket parts. This hydraulic pump can be purchased with HP ratings of 250-275. However, you should be aware that adding HP may not only increase the costs of the pump but also cause reliability problems. Increasing the HP by 20 percent will require up to 100% increase in cooling capacity. Besides, you may not be able to use the additional horsepower in marine applications, where the ocean is your heat exchanger. You may consider upgrading your pump to an electronic version. On the other hand, it is more difficult to increase the HP of a mechanical rotary pump.

While the older DT466 models weighed approximately 1,425 pounds, the newer MaxxForce DT versions came equipped with two turbochargers and emissions controls. In short, the DT466E is not the most powerful diesel engine, but it can still do its job. Nevertheless, it is a capable performer in medium-duty trucks. Moreover, its aftermarket potential makes it an excellent choice for those who are looking for a powerful diesel truck with a big rumble.

DT466E lawsuits

The Maxxforce DT diesel engine is the successor to the DT 466E. The engine is used in class 6-7 trucks and buses. It has a long history of problems, but a new version of the engine may be more troublesome. Here are some problems with the Maxxforce DT diesel engine. Injector problems were more common five years ago. While some problems have been fixed, others are still causing problems.

Navistar recalled the Maxxforce 7 engine in 2006. It’s the most common engine defect for the company. Navistar recently settled a class action lawsuit for $135 million. The settlement provides a $2500 payout and a $10,000 rebate for a new truck. However, this settlement is only going to benefit the plaintiffs. The company’s bottom line won’t be affected by the settlement.

The company, which owns 14 International trucks powered by Advanced EGR Maxxforce engines, is under fire from lawsuits. The company estimates that 150 days of revenue were lost due to engine malfunctions. Navistar is facing a number of claims, including breach of warranties and implied covenants of good faith. It also faces lawsuits for violating unfair competition laws and consumer fraud. Class actions seek compensatory damages for a class of truckers, punitive damages, and court costs.

DT466E reliability

Reliability is a major consideration when buying a truck, and the DT466E engine is no exception. Originally a 7.6-liter diesel turbocharged engine, the DT466 was the most reliable of its type. This engine was upgraded over the years to provide cleaner emissions, and increased fuel economy. The DT466E was also available in other versions, such as the Paystar and Fleetstar.

The DT466 engine has long been the most reliable medium-duty truck engine in history, but since Navistar acquired IHC several years ago, the reliability and durability of the DT466E has declined. The DT466E engine has increased mechanical performance and emissions equipment, and some school bus mechanics have run their Maxxforce DT466-equipped buses for 700,000 miles before rebuilding the engine.

The DT466/DT466E engine is easier to repair than its mechanical counterparts. Its all-iron wet-sleeve cylinder design makes it easier to repair than its mechanical counterpart. Additionally, its electronic emissions reduction system means that it can be rebuilt to factory specs without removing it from the vehicle. Its DT466 engine outlasts the truck, and despite the problems it may encounter, its reliability is unmatched by any other.