<P> The 1994.5 to 1996 / 97 DI Power stroke has "single shot" HEUI (hydraulically actuated electronic unit injection) fuel injectors and ran a high pressure oil pump (HPOP) to create the necessary oil pressure to fire the fuel injectors . This generation of Power Stroke utilizes an HPOP with a 15 ° swash plate angle . The 1995 - 1997 trucks use a cam - driven fuel pump, whereas the 1999 - 2003 trucks use a frame rail mounted electric fuel pump . The California trucks from 1996 and 1997 have split - shot fuel injectors; other trucks did not get split - shot injectors until 1999 . Single - shot injectors only inject one charge of fuel per cycle, whereas the split - shot injector releases a preliminary light load before the main charge to initiate combustion in a more damped manner . This controlled injection helps reduce the sharp combustion' knock' . </P> <P> It utilizes a single turbocharger with a turbine housing size of 1.15 A / R. In 1999, an air - to - air intercooler was added to cool the charged air from the turbo for increased air density . With the new cooler, denser air would increase the horsepower potential of the engine, while also reducing exhaust gas temperatures (EGT). Eventually, the turbine housing was changed to a . 84 A / R and a wastegate was added . With larger injectors, the HPOP output was increased by utilizing a 17 ° swash plate angle to meet the requirements of the new, higher flowing injectors . </P> <P> The 7.3 L DI Power Stroke was in production until the second quarter of model year 2003 when it was replaced by the 6.0 L because of its inability to meet newer emission requirements . Nearly 2 million 7.3 s were produced from International's Indianapolis plant . </P> <P> The 7.3 L DI Power Stroke engine is commonly referred to as one of the best engines that International produced . </P>

When did ford stop using the 7.3-liter diesel