I have a slip light coming on at 40 to 50 MPH and it like the trans is slipping let off the gas it goes away .Just bought it Yesterday and thought I would ask I have read about the tires and been reading but cant find anything that applys to this no turning or anything just going down the road Help please

the Motor RPM goes up and I slow down

 

What tire sizes are on the car?

 

i think you are along the right lines of thinking spike. did you not have a mechanic check out the car first Norris?