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Home >> Mazda >> 1990 >> Protege 4WD, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - F4A-El, FU06, G4A-El, G4AX-El & G4A-Hl >> Testing >> Oil Pressure Test Evaluation

Oil Pressure Test Evaluation

Low In "D", "S", "L" & "R" - Worn oil pump. Fluid leaking from oil pump, control valve body or transaxle case. Pressure regulator valve stuck.

Low In "D" & "S" - Fluid leaking from hydraulic circuit of forward clutch.

Low In "R" - Fluid leaking from hydraulic circuit of low and reverse brake.

High In "D", "S", "L" & "R" - Throttle valve stuck. Throttle modulator valve stuck. Pressure regulator valve stuck.