• The hydraulic system consists of a valve body, an oil filter and an oil pump.
• The oil pump is powered by the engine. ATF passes through the oil filter and gets distributed along the oil channels.
• The oil becomes highly pressurized as it exits the oil pump and passes through the line pressure valve before being fed to the clutch & brake control valve, clutch, and brakes.
• TCM controls the hydraulic pressure using solenoid valves and controls clutch and brake operations.

Hydraulic System
Electronic Oil Pump (EOP)Hyundai Tucson (NX4) 2022-2026 Service Manual: Fuel Pressure Test
- Fuel Pressure Test
1.Release the residual pressure in fuel line.(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")
• When removing the fuel pump relay, the Diagnostic Trouble Code
(DTC) will be occurred. Therefore delete the code with the diagnosti ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Crash Pad Under Cover
- Replacement
• When prying with a flat-tip screwdriver, wrap it with protective
tape, and apply protective tape around the related parts, to prevent
damage.
• Put on gloves to protect your hands.
• Take care not to bend or scratch the trim a ...