Call (877) 996-4312


If you are a current or former purchaser or lessee of 2009-2013 model year Navistar International Corporation (“Navistar”) vehicles equipped with Maxxforce Advanced EGR diesel engines, you may have legal claims against Navistar due to an engine defect and should contact an attorney to discuss your rights.

Navistar International Corp. Lawsuit

Who or what is Navistar?

Navistar is a major manufacturer of commercial trucks and diesel engines, as well as military trucks, commercial buses, and school buses. It also provides service and parts for trucks and diesel engines. Navistar sells its vehicles and engines throughout the United States.

What is the Alleged Defect in the Navistar International Corp. Lawsuit?

The emissions system on Navistar Maxxforce Advanced Exhaust Gas Recirculation (“EGR”) diesel engines (the “Maxxforce Engines”) has led to repeated failures and may be defective. The Maxxforce Engines are not reliable compared to either Navistar’s previous engines or competitors’ engines, in that they cannot handle the amount of heat and pressure they generate, leading to broken EGR valves, exhaust leaks that melt and destroy other engine components, and EGR cooler failures, which send uncooled exhaust gas back into the engine causing it to shut down. The added stress of having non-flammable coolant pushed out the exhaust valves in the cylinder head destroys the head gasket, which joins the head to the cylinders, and the engine has to be rebuilt.

This problem has rendered the Maxxforce Engines unreasonably dangerous, creating numerous safety concerns for drivers and other motorists. Specifically, the alleged defect leads to sudden breakdowns, forcing the affected trucks, often heavily loaded with cargo, to pull to the side of the road. It also can cause coolant and exhaust fumes to enter the passenger compartment of the affected trucks, creating a risk of driver poisoning from the fumes.

Affected Navistar Vehicles

Navistar sold trucks containing the allegedly defective EGR-based Maxxforce Engines under its International brand name, including the following models:

  • International Prostar and Lonestar, which are heavy-duty, long haul tractor trailer trucks
  • International Transtar, a heavy-duty, regional haul truck
  • International Workstar and Paystar, severe-duty trucks used for construction applications, such as dump trucks
  • International Loadstar, a severe-duty cab forward truck used for various applications, including garbage trucks and airplane refueling trucks

Damage to Consumers

The Maxxforce Engines have failed or are substantially likely to fail in the future. Owners and Lessees have had to repair or replace these engines and/or other parts damaged by EGR system failure repeatedly, often at their own expense, and often after Navistar failed to properly repair them pursuant to the warranty.

The trucking industry is well aware of the problems with the Maxxforce Engines. Customers who bought trucks with Maxxforce Engines are now stuck with an unfixable problem. Further, the alleged defect in the Maxxforce Engines has led to extended periods in which customers’ commercial vehicles were unable to perform.

Navistar has failed to honor its warranties and properly repair the emissions system in the Maxxforce Engines. At best, Navistar replaced the emissions system with another equally failure-prone system, never properly remedying the problem.

Failure to Meet EPA Standards

In 2000, the U.S. Environmental Protection Agency (“EPA”) announced that it would, for trucks manufactured for the 2010 model year forward, impose new, strict emissions standards. Every manufacturer selling commercial trucks in the U.S. except Navistar chose to meet the 2010 EPA Standards with Selective Catalytic Reduction (“SCR”), which treated engine exhaust with a urea-based chemical after it left the engine.

Instead of SCR, Navistar alone chose EGR technology to meet the 2010 EPA Standards, which purportedly would reduce emissions by subjecting exhaust flowing out of the engine to a second burn in the cylinders. While many commercial and passenger engines use EGR systems of some kind, no manufacturer had ever produced an engine that recirculated such a large percentage of engine exhaust into the cylinders, generating far more heat within the engines than in SCR-based engines.

Navistar Actively Concealed the Alleged Defect Despite Widespread Complaints

The Internet is replete with numerous complaints about the Navistar Maxxforce Engines. Complaints by truck owners demonstrate how widespread and potentially dangerous the problem is, how it manifests without warning, and how aware Navistar is of the problem.

While facing numerous warranty claims on EGR defects in its Maxxforce Engines, Navistar continued to tout EGR as the future of emissions technology and failed to disclose that the alleged defect was, in truth, not fixable. Navistar blamed the warranty claims on manufacturing problems (which it claimed to have resolved), and continued to portray the Maxxforce Engines as reliable. In fact, these were the same problems experienced with Navistar EGR-based diesel engines since 2004, and Navistar knew they would continue as long as EPA standards became stricter and as long as Navistar stayed with the EGR system.

Navistar’s Long-Delayed Abandonment of EGR

In July 2012, Navistar finally announced that it was abandoning EGR and would adopt the SCR technology for the 2013 model year. Even after announcing its coming switch to SCR technology, Navistar continued to sell the EGR-based Maxxforce Engines and failed to disclose their defects to consumers.

Want to know if you have legal options?

If you are a resident of any of the 50 United States and its Territories and are a current or former purchaser or lessee of 2009-2013 model year Navistar vehicles equipped with Maxxforce Advanced EGR diesel engines, please contact Grant & Eisenhofer P.A. to discuss your potential claim by submitting the contact form, or by calling us at 888-554-3529.

Please visit Grant & Eisenhofer to learn more about us and our expert consumer claims practice.

    Free Case Evaluation

    (877) 790-3588

    or by filling out this form so we can discuss the legal options available to you. Fields marked with * are required.

    You havecharacters left.

    Web Statistics