When high pressure fluid from the power steering pump enters a steering rack, it is routed through âspool valvesâ connected to the steering column. When the driver turns the steering wheel, the spool valves open ports that direct pressure to a hydraulic chamber around the rack.
Johnson is a surname of English origin. The name itself is a patronym of the given name John, literally meaning son of John.The name John derives from Latin Johannes, which is derived through Greek á¼°ÏÎ¬Î½Î½Î·Ï IÅannÄs from Hebrew ×××× × Yohanan, meaning Yahweh has favoured.he name itself is a patronym of the given name John, literally meaning son of John. The name John derives from Latin Johannes, which is derived through Greek á¼°ÏÎ¬Î½Î½Î·Ï IÅannÄs from Hebrew ×××× × Yohanan, meaning Yahweh has favoured.
JACKSON Surname Meaning & Origin: This patronymic surname means son of Jack.. The given name Jack may be a diminutive of John or James, or a derivation of the Old French given name Jacque, the French form of Jacob.Surname Origin: English.ACKSON Surname Meaning & Origin: This patronymic surname means son of Jack.. The given name Jack may be a diminutive of John or James, or a derivation of the Old French given name Jacque, the French form of Jacob. Surname Origin: