Hyundai Tucson: Crankcase Emission Control System / Crankcase Check Valve
• Be careful not to damage the parts located under the vehicle (floor under cover, canister, fuel tank) when raising the vehicle using the lift.(Refer to General Information - "Lift and Support Points")
1.Disconnect the battery (-) terminal.
2.Remove the engine room under cover.(Refer to Engine And Transaxle Assembly - "Engine Room Under Cover")
3.Remove the drive belt.(Refer to Drive Belt System - "Drive Belt")
4.Remove the compressor mounting bolts.(Refer to Heating, Ventilation and Air Conditioning - "Compressor")
5.Disconnect the crankcase check valve hose (A) and then remove the crankcase check valve (B).
Tightening torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
• Push the check valve to the end of the mounting surface, and then tighten the bolt.
Positive Crankcase Ventilation (PCV) Valve
- Description
Pressure Regulating Valve (PRV) is installed to prevent the over
pressure of combustion gas through the piston ring and onto the
crankcase.
- Operating Principle
Engine cond ...
Other information:
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Engine oil pressure warning
light
This warning light illuminates:
When the engine oil pressure is low.
If the engine oil pressure is low:
Drive carefully to the nearest safe
location and stop your vehicle.
Turn the engine OFF and check the
engine oil level (For more information,
refer to the “Engine Oil” secti ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Inspection
- Inspection
Liftgate normal operation transmit / receive process
• FOB key Switch : FOB key Switch → BMC / SMK → CAN communication → PTG Module
• Driver Switch : Driver Switch → Wiring → PTG Module
• Outer Switch : Outer Switch → Wiring → SJB → CA ...
