2013 Hyundai Santa Fe Sport
Used parts are always a crapshoot. And most Hyundai assemblies seem to be replaced vs rebuilt by dealers/shops so very few sources on the internet to find diagnostics.Thanks for your continued responses regarding this matter. Since the transfer case died (again) the rear is fine. Making tight turns at high and low speeds there is no noise or binding. Which has me wondering if the used transfer case was bad to begin with? If the rear differential we're trashed would it work correctly if the transfer case was disconnected? Or would there be binding in turns regardless? If it is the magnetic clutch, how can that be tested?
Out of curiosity what was the original transfer case doing/sounding like that indicated it failed?
The rear coupler is electro hydraulic and controlled by a valve to regulate oil pressure. The service manual does have some diagrams and operational proceedures in it so you may be able to test it out.
Hyundai Santa Fe: Direct Electro Hydraulic Actuator Coupling. Description and Operation - Coupling Assembly - 4 Wheel Drive (4WD) System
4 Wheel Drive (4WD) System. Coupling Assembly. Direct Electro Hydraulic Actuator Coupling. Description and Operation
Hyundai Santa Fe: Oil hydraulic Motor(Actuator). Schematic Diagrams - Coupling Assembly - 4 Wheel Drive (4WD) System
4 Wheel Drive (4WD) System. Coupling Assembly. Oil hydraulic Motor(Actuator). Schematic Diagrams
Just more difficult without the scantool but basic voltage and resistance tests should indicate pending failure.
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