High-Pressure Oiling System
WARNING: This page is about a different variant/trim than selected.
High-pressure oiling system supplies oil pressure for fuel injector operation. See Figure. During initial start or cold start, gear-driven high-pressure oil pump receives unfiltered engine oil from driver's side valve lifter oil galley through anti-drain check ball. Once engine starts, or during warm engine starts, anti-drain check ball closes and high-pressure oil pump receives filtered engine oil from high-pressure oil pump reservoir. High-pressure oil pump delivers engine oil through oil rail in cylinder head at pressures of 600-3000 psi (42.19-210.93 kg/cm2 ) to fuel injectors.