Power Steering

Twice the return line of my maibu power steering has torn and I have replace it but the second time I add a cheap power steering oil does it cause the power steering to fail Cause when i park car on try to turn but the steering wheel is too hard to turn can it be that or is it the rack o pinion that is no longer good? :banghead:

Unfortunetely, I think your right. You have a rack issue on your hands

The thing is that when the car is cold the steering move like it should once it reaches like normal temp it I start to have those problems