1994 740 IL. TRACTION CONTROL UNIT STARTED LEAKING FROM THE POWER STEERING SIDE. SYSTEM WORKED FINE UNTIL I CHANGED UNIT. PURCHASED A USED UNIT, INSTALLED , IT LEAKED. GOT A REPLACEMENT, IT ALSO LEAKING. IT APPEARS I HAVE AN OVERPRESSURE ISSUE AS I HAVE RUPTURE THE HIGH PRESSURE HOSE FORM THE PUMP AND NOW IT WILL LEAK AT BOTH ENDS OF THE PRSSURE HOSE ONLY AFTER 30 SECONDS OF RUNNING. THE PRESSURE IS ALSO LEAKING OUT THE HYD. UNIT BUT I CAN'T TELL EXACTLY WHERE. THERE ARE TWO POWER STEERING LINES THAT CONNECT TO THE BOTTOM OF THE HYDRAULIC UNIT THAT HAVE THE SAME FITTING. NOT SURE IF THEY ARE SWITCHED BY MISTAKE. CANNOT FIND ANY DETAIL ON WHICH GOES WHERE. ONE LINE GOES TO THE PUMP, THE OTHER LINE TO THE RESERVOIR. THE RESERVOIR IS CURRENTLY ATTACHED CLOSET TO THE FENDER WELL. OTHER THAN THAT I DO NOT KNOW WHY THIS CONDITION EXISTS. NO TECHNICAL DATA ON HOW THIS WORKS. ANY ADVICE IS APPRECIATED.

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