Anyone figure out how to solve the whine issue with the power steering/hydro boost?

 

What whine issue?

Stewart

 

You've never had any noise from your power steering setup?

 

Only noise I ever hear is at full lock, and I assume that is normal.

 

Try bleeding with some synthetic ATF, if that doesn't work a new power steering pump will.

 

Thanks for the tip....nothing to loose and all to gain at this point.

 

Oh any suggested pump brands if I have to go that route again? Obviously the OEM may not be the best?

 

Also make sure that it is not over filled. Too much fluid will sound just as bad as too little.

 

Nope, not unless I was at full lock (like Nate stated) or if the fluid was too low.

I would prefer OEM if I had the cash. Napa would be a good second choice for me.

If you flush it, make sure you use Mercon V ATF fluid.

Stewart

 

Bleeding your power steering pump [Archive] - PowerStrokeNation : Ford Powerstroke Diesel Forum

 

Ford Super Duty Power Steering Flush | Superdutypsd.com

 

I had a very difficult time getting all the air out after replacing my leaking hydroboost. Check under steering column where brake rod comes through firewall. See if yours is wet there with red fluid. Maybe your hydroboost is going bad.

This worked for me:

Lift and suspend the front end off the ground to clear the tires.
Open the PS reservoir and make sure the fluid is topped off. I used Mercon V as recommended.
This part is not in the procedure, but trust me you'll want to use it. Double up some strong rubber gloves, they work best. Take the doubled up rubber gloves and use them to close off the PS reservoir using the opening where you would stick your hand. You want this rubber glove "lid" to keep the PS fluid inside the PS reservoir as your burping the air out. Clip a small tip off one finger to allow air to escape. The alternative is to keep refilling the reservoir as you burp fluid and air out. Without the gloves you will have PS fluid all over the frame and gear box.
Now, this is where you will be burping the air out of the system.
Inside the cab with KOEO begin to turn the steering wheel lock to lock slowly. It will be somewhat difficult, but what you're doing is forcing fluid through on right turn and air out on the left turn, or visa versa IIRC. When the air is being forced out it is also causing the fluid in the reservoir to splash, hence the gloves.
You will usually need to go lock to lock at least 20 - 25 times to get all air out. If you replaced any parts such as pump, gear box, lines etc you may need as many as 60 turns lock to lock.
You may need to check fluid periodically as you're bleeding air out and pushing fluid.

 

Thanks for the info...I'll give it a shot!