The specs were good as the engine could put out 350 hp at 3000 rpm and 650 ft-lb torque at 2000 rpm. That is until they started using their own engines for the same vehicles. The engine had some of the DT 466 inline 6 applications helping the 7 to get off to a great production start.īetween 20, Ford was the main consumer and user of this motor. This was an engine that was put into production around 2003 and some say it was discontinued in 2012 while others say it survived for another 4 years.
Unfortunately, this did not happen when the company began to make the Maxxforce 7.
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This way they get to free themselves from different problems from outside companies while making sure the company stays profitable.
Often in any industry, if a company buys from another company the buyer is at the mercy of the problems that would shut production down at the second company.Īlso, profits go out the door. International wanted to make their own engines in-house in order to have a steady supply of engines. The concept that produced this engine was a good business decision. Far too many customers and owners have suffered from the many parts failures that have occurred while the engine was in production. Unfortunately, what looks good on paper and blueprints does not always work out in reality. The change in design came too late for many of them.īasically, the engineers who designed it thought they were coming up with a better idea. The design of all its different parts caused a lot of problems for both truck company owners and mechanics. Overall, it was not just the ECR that was the problem. The company did eventually switch to the Cummins selective catalyst reduction (SCR) technology but not until the EPA threatened to fine them almost $4000 per engine sold (once the company used up its emission credits). Those problems have mostly pointed to the exhaust gas recirculation-only (EGR) engine that Navistar used instead of a better system. There were a remote mounted air compressor and other parts that made this a complicated engine to use and work on.įrom the get-go, there seems to have been nothing but problems with this motor, even though there have been some very satisfied customers. The engine itself was a V8 and it carried a lot of equipment next to it. This was supposed to be a grand trucking engine that was supposed to help trucking companies get more power and better efficiency.
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