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Home >> Mazda >> 1999 >> Protege DX, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Overhaul - FN4A-El >> Testing >> Line Pressure Test Evaluation

Line Pressure Test Evaluation

LINE PRESSURE TEST EVALUATION - FN4A-EL

Test Result Possible Cause
Low In "D", "2", "L" & "R" Worn Or Leaking Oil Pump, Valve Body Leak, Case Leak, Pressure Regulator Valve Sticking, Pressure Control Solenoid Faulty, Pressure Modulator Valve Sticking
Low In "D" & "2" Forward Clutch Hydraulic Circuit Leak
Low In "2" 2-4 Brake Band Hydraulic Circuit Leak
Low In "L" & "R" Low-Reverse Brake Hydraulic Circuit Leak
Low In "R" Reverse Clutch Hydraulic Circuit Leak
High In "D", "2", "L" & "R" Pressure Control Solenoid Malfunction, Pressure Modifier Valve Stuck, Pressure Regulator Valve Stuck