My motor is out and I need to replace the low pressure power steering hose because it has a leak. On my F250, the hose connects to some metal lines that snake around the frame. I think those are to cool the fluid. Anyway, my motor is out and I'd like to drain the pump, replace the hose and fill it up before I put the motor back in. I think if I disco the hose from the pump, that I can flush what is in the lines by turning the pulley. My problem is that my motor is out so I can't turn the pulley that way. Can I manually turn the pulley to get it to flush out the old fluid or maybe put a rubber wheel on my drill and turn the pulley that way?

 

Turning it by hand will work, but you won't get it all out. Are you worried about getting the old fluid out or just spilling it? The low pressure side can be replaced without draining the whole system.

 

What I do when I want all the fluid out of something is blow the lines down with compressed air. In your case I'd also turn the pump over and let it drip into a pan overnight.

 

Thanks. I figured since I'm replacing the hose anyway, I might as well flush and start with new fluids.

 

Jack up the front wheels, with both power steering hoses off the pump and bent down low as possable to drain , turn the wheels lock to lock a few times.

That will remove most of the old fluid from the steering gear box.

You can refill the gearbox and repeat to really clean it out if you want too.

 

If your pump has a nut on the pulley you could spin it with a drill.

 

Thanks for the tips. When I spin the pump, I think it should go clockwise. Am I right?

And when I disco the low pressure line, I'm disconnecting it at the pump and letting the fluid drain out of that when I spin the pump. Is that right?