Engine/Transmission (1998.5 - 2002) power steering fluid loss

[edgar2]

I am losing power steering fluid, not from around the pump but it seems to be coming from under the brake master cylinder. Any ideas?

2001(early) 2500 diesel 410 axle automatic, PS PB trailer tow pkg. towing 31' King of the road 5th wheel.

 

[SHobbs]

Check the hydro boost. Mine started leaking between the master cylinder and the hydro boost, as well as a leak from a small hole ( weep hole maybe ) on the bottom of the hydro boost. Just bit the bullet and replaced them both. Being that power steering fluid is pumped through the hydro boost to give pressure to the brakes I would bet that's the problem.

 

[2Farr]

I have been there. Mine leaked so bad it would drip down the inner fender from under the fuze box and master cylinder and leave PS fluid on the ground. Had three Dodge shops look at my truck. I'v had new PS hoses installed. Even had all hoses for the power brakes replaced. The Dodge shop even removed my fuze box to see if the leak was under it. The air flow goes everyware under the hood so it can be hard to find the leak. How I found my leak was to put a mini camera under the hood and drive the truck. I found the leak. The power steering pump cap would leak when the truck would get hot or driven hard. I replaced it with a new one. Six months it was leaking again. I drilled a vent hole in it and ran a small hose to a catch tank which is vented also with a filter. Problem has been solved for over 100k.