The 7.3L Power Stroke was introduced in 1994 and continued through mid-2003, produced by International Navistar. This model is also known as the “OBS” which stands for “Old Body Style”. The 7.3L Power Stroke is an electronically controlled direct injection which uses a single shot HEUI (hydraulic/electronic unit Injector) fuel injector backed with a high pressure oil pump (HPOP). The 7.3 utilizes the HPOP in conjunction with a low pressure lift pump to create an overall fuel pressure of 21,000psi. The 94-97 7.3L Power Strokes are non-intercooled single turbocharger set up, Ford did not introduce the intercooler till 1999. These Ford Power Strokes had the option of the ZF S5-47 5-speed manual transmission or the 4-speed E4OD Automatic transmission. The factory E4OD transmission is typically weak and cannot hold much over stock horsepower and torque.
If you have any questions whatsoever on your Power Stroke and would like to speak with one of our professional diesel technician’s about your truck, please do not hesitate to contact us at 208.292.4401 or email us at firstname.lastname@example.org. We have The Power to Feed Your Diesel!
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