Hard brakes and steering.

[Kellyboy]

Just finished a 5" lift on my 1008. Had to drain all the fluid from my steering box to swap out the sector shaft with a 2WD one for crossover. Left it on jack stands and set the play properly and steering was nice and free until I started it. Figured I would need to add fluid to the master after starting it and a good back and forth with the steering wheel. The steering got hard as soon as I started it and cycled the wheel a bunch of times. No change in the master fluid level. Went to test drive and the brake pedal is hard as a rock and barely any brakes. I would think the pedal would be squishy if anything. Don't know much about the hydroboost but hoping someone can point me in the right direction. Thanks

 

[doghead]

You need to add steering fluid to the steering pump.

Not the master cylinder. Unless you removed brake lines, then you need to bleed the brakes too.

 

[Kellyboy]

You need to add steering fluid to the steering pump.

Not the master cylinder. Unless you removed brake lines, then you need to bleed the brakes too.

Well ****! Did the lines and bled them first. Assumed the dry steering box would rob the fluid from the master as I thought they were the same system. Like I said I am not familiar with this system. Got a lot to learn. Will try that tomorrow. Never had a hard pedal with no brakes. Thanks again doghead.

 

[Kellyboy]

Ok. Kinda Makes sense to me now that I look it over. Pedal is firm because lines are good but it gets its power from the ps pump?

 

[Kellyboy]

Ok. Kinda Makes sense to me now that I look it over. Pedal is firm because lines are good but it gets its power from the ps pump?

I apologize for posting here before doing my research first but you guys always come through. That's what I like about this page. You guys are awesome. Found this great page on the hydroboost system. Hope it helps someone. http://www.brakeandfrontend.com/operation-diagnosis-and-repair-of-hydro-boost-power-assist-systems/

 

[Kellyboy]

Well I added atf to the power steering and the brakes and steering came back but moaned like crazy. When I took the cap back off it foamed over.dont know if it had ps fluid in it previously and it doesn't like it or if the new/old sector shaft I installed is letting air get sucked by it. Would it be leaking if the shaft doesn't seal right or would it just let air get sucked in?

 

[dougco1]

Well I added atf to the power steering and the brakes and steering came back but moaned like crazy. When I took the cap back off it foamed over.dont know if it had ps fluid in it previously and it doesn't like it or if the new/old sector shaft I installed is letting air get sucked by it. Would it be leaking if the shaft doesn't seal right or would it just let air get sucked in?

You put ATF in the brakes?

 

[Kellyboy]

You put ATF in the brakes?

No. In the power steering pump. It supplies pressure to the brake system (hydro boost). I read several post that say to use atf instead of ps fluid but don't mix them.

 

[sneekyeye]

I dunno, man. At this point, you might just have to flush and fill the whole power steering system so you at least know whats in it. Bonus being you get out any old fluid and start fresh.

I have to say though, Ive sucked the fluid out of the power steering reservoir a bunch of times and always refilled it with power steering fluid. Ive really got no room to talk either.

I do need to go back in and flush out my brakes again too...

Also for edit #4, when you accidentally get air in your power steering, the pump will froth it up and you will need to let it sit a few minutes for the bubbles to rise. Fill it, and repeat until there is no noise when turning the wheel

 

[Kellyboy]

I dunno, man. At this point, you might just have to flush and fill the whole power steering system so you at least know whats in it. Bonus being you get out any old fluid and start fresh.

I have to say though, Ive sucked the fluid out of the power steering reservoir a bunch of times and always refilled it with power steering fluid. Ive really got no room to talk either.

I do need to go back in and flush out my brakes again too...

Also for edit #4, when you accidentally get air in your power steering, the pump will froth it up and you will need to let it sit a few minutes for the bubbles to rise. Fill it, and repeat until there is no noise when turning the wheel

Will try again tomorrow with hopes of air in the system. PS fluid makes sense to me but research is telling me dex/merc 2 was spec and 3 is acceptable. Not sure why ATF would be recommended over PS fluid unless it is a hydroboost difference. Personally used both in a leaky ps pump on a newer vehicle based on fluid cost and it worked fine.

 

[Kellyboy]

Jacked up the front end and turned it back and forth to full lock (engine off) until the gurgling sounds stopped (about 40 times). Topped it off again and problem gone! This thing rides and handles like a dream compared to before the lift and crossover steering. The driveline noises even disappeared without new ujoints. Can't wait to get the front shaft lengthened so I dare to flex it offroad. only 2.5" spline engagement now. Feel it is safe for a pavement princess but won't be off-roading with it like that.