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How can lack of oil pressure prevent my 7.3 diesel from starting?
Wiki User
∙ 13y ago
Simply put these engines use an injection system called HEUI or Hydraulically-actuated, Electronically-controlled Unit Injectors.
These injectors require a high pressure oil pump to supply the injectors oil pressure to actuate the internal injector piston to push fuel into the system.
No oil pressure, no fuel.
Wiki User
∙ 13y ago
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