1997 Super Duty 7.5 has a horrible "whine" when turning the wheels or hitting the brakes. Weird thing is, when I have the front end jacked up it goes almost completely away when turning the wheels. It is still there, and just as loud when I hit my brakes, but the brakes never were as loud as it was when I turned the wheels.

I am guessing it is something to do with the steering gear or tie rod ends or something that I have absolutely 0 experience with.... Any points in the possible right direction would be greatly appreciated!!!

More info on the problem: PS pump was always a bit noisy, but after the truck sat for a while (around a year, drove it every couple months for a few miles) it was ridiculous, so i replaced the pump, cycled all the old ATF out, made sure I had good pressure coming all the way back to the pump, several times. Never ran it dry.
The steering wheel (with wheels on the ground) kicks back on me and has a LOT of play in it before the PS pump kicks in and starts screaming. Jack the front end up, steering is nice and tight, no play, noise is there a BIT (with the hood up and cap off the PS pump) I would imagine under normal driving conditions i probably wouldn't even hear it much, if at all.

With my very limited mechanic knowledge I would assume that something is making it very hard for my wheels to turn, which is straining my PS pump, but what!?!?!?!? Like i said above, any help would be solo greatly appreciated!

Thanks in advance!!
Dan
I will try to post video of this tomorrow if i can.

 

Probably has an internal seal in the steering box going south.

 

Internal seal.... does that mean I have to replace the whole gearbox? (average mechanic skills)



This came off where it connects to the gearbox on the line from the gearbox back to the PS pump. Not sure if i need a specific seal here or if there are universal seals i can slap on it? I can't see it leaking where this came off, but realize it needs to be replaced.

Here are a couple videos of my noise with the wheels on/off the ground.

Tires on the ground:


tires off the ground.

You can tell there is still a noise when the wheels are off the ground, but I can live with that if i could get it that way with the wheels on the ground. Everyone i have talked to (friends and family) say tie rod ends or other front end components. Is this possible? Also, the sound is still there when i hit my brakes regardless of on/off the ground. Can i run my line straight from the PS pump to the steering gear? (to rule out something in the hydroboost unit causing this?)

 

It's always going to be louder with a load on the tires.

Reasoning for a steering box diagnosis is that you already replaced the pump with no reduction in noise.

I'd pull the box and take it to a rebuilder and have them go through it, wouldn't suggest trying it yourself.

 

cool, thank you!!