What Does a 7.3 Hpop Do
The Hpop Delivers High Pressure Oil That Is Used to Activate the Injectors. This Is Where the Term Heui (Hydraulic Electronic Unit Injectors) Comes From. in...
The HPOP delivers high pressure oil that is used to activate the injectors. This is where the term HEUI (hydraulic electronic unit injectors) comes from. In the 7.3L Power Stroke, oil is delivered to the HPOP from the engine’s oil pump located in the front cover.
How do high pressure oil pumps work?
The high-pressure oil on top of the intensifier piston forces the plunger (D) down, which in turn forces the nozzle needle to lift, pressurizing the fuel in the plunger cavity, and ultimately opening the nozzle (E), sending fuel into the combustion chamber.
What happens when the high pressure oil pump goes out?
A bad oil pump will lose the ability to properly pump oil through your system. This will result in low oil pressure that could lead to further vehicle damage. Increased engine operating temperature.
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