The computer readout recently has been flashing POWER STEERING fluid. i checked the low level and I made a post about it and added the appropriate ATF Fluid. I used Dexron III ATF. However the display still comes on once in a while. Usually when I start up the car? Has anyone had this problem. I checked the fluide level and it is good. Could there be a bad sensor? If so what is the part number and how do I replace it. Thanks.