The car started making a squeaky noise at low speed. When I am over 25 mph, the car sounds as usual. But whenever I go below 25 mph, the squeaky noise is there till the car is at full stop. Then the noise goes away. BTW, my rpm meter is also not working. One of the mechanic said that if I flush the transmission fluid and then clean it with solvent, it should go away. I'll give it a try but any help would be appreciated.