PO 755 CODE = shift selenoid B malfunction ! Anyone know steps to fix this problem ? In crossing a flooded bridge car stalled. After pushing car to dry area it did start again but in checking oil noticed oil was milky and crankcase overfilled. Changed oil but now there is a clicking noise in engine and a "check engine soon" light is on. Shows code PO755. Nissan sentra 1.8 s model - 4 banger.