Hello All, I have a 2010 F250SD 4x4 with some steering issues. It has just started recently. Right from cold start, I go straight down a road and I feel the truck pull to one side slightly. The steering is not exact, around corners I can feel the it pull side to side but the steering wheel stays where it should in the corner. I have coasted, out of gear and no brakes applied and it happens in straight-a ways or corners. It disappears once the truck is fully warmed up. I was thinking power steering and the fluid level is good. Could it be a bad PS line? Just not sure

 

This is a new one to me. I had the same symptoms on my '99 and my '04, but it never got better as the truck warmed up. Both times the ball joints were bad and corrected the issue. I'm not assuming that is what you have going on, but I would suggest checking them too.

 

Can feel it pull side to side? "It" being the steering wheel, the truck or something else?

The steering wheel stays where it should? Where should it stay? My steering wheel returns to center if I let go of it.

 

Front axle u-joints and/or ball joints.

 

Short and to the point!

 

Agreed and likely the problem...OP doesn't list the mileage but these are the first things Id check, along with PS fluid.