The HEUI offered improved performance and better fuel economy compared to the prior mechanical injection system. HEUI uses highly pressurized engine oil to create fuel pressure directly in the injector body, as opposed to requiring a typical injection pump. Some of the biggest highlights of the 7.3L Powerstroke turbodiesel were Direct Injection and the HEUI (hydraulic electric unit injector) injection system. The T444E was the first engine to be marketed under the Ford Powerstroke name. Although the Powerstroke was based on the T444E there were some slight variances specific to Ford applications, with the Powerstroke using a different PCM (powertrain control module) and turbocharger, as well as some other small differences. The acronym T444E stands for Turbocharged, 444 cubic inch displacement, Electronically Controlled. The Powerstroke was manufactured by Navistar International and based on their T444E engine. Not to be confused with the earlier 7.3L International Harvester IDI, the new 7.3L Powerstroke varied greatly from its predecessor with the bore and stroke being the only thing they had in common. Five years after Dodge sent shockwaves through the industry, Ford countered with the Powerstroke. The 6.9L/7.3L diesel offerings by Ford were reliable engines but the power levels paled compared to the Dodge 5.9L 6BT. With Dodge and Cummins partnering up in 1989, it changed the entire landscape of the heavy-duty truck market and forced Ford and GM to play catch up. Introduced during the 1994 model year, the 7.3L Powerstroke is still one of the most sought-after Ford powerplants ever produced. One option that really raises the overall desirability and value is the 7.3L Powerstroke diesel engine. Nicknamed OBS for “Old Body Style” the 1992-1997 Ford F-Series are well known for their simplicity, reliability, and of course classic styling. Posted on by Jeremy_XDP 0 History/General Info Buyers Guide, Powerstroke 1994-1997 Ford 7.3L Powerstroke Buyer’s Guide
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