On mine, I have a reservoir with a cap. I just pumped it out, refill with new fluid. I did this 6 times over a two week period.

 

The two lines at the bottom of the resivior are the ones you need to disconect. One line comes from the PS box and One comes from the brake booster. Its best to have an assitant help out by strating and stoping the engine on your command so the pump doesn't run dry. You should also have your assitant pump the brake pedal when your flushing. The brake booster doesn't put much fluid back to the resivor unless its being pumped. And the booster is a good place for crap to accumulat. I actaully took my brake booster apart once(not recomened as its not very safe) and It had some spots that really don't see fluid flow so they were full of fillings.

Oh yea and I would recomend amsoil power steering oil if you want to upgrade to a better fluid. You can find info on it at amsoil.com

 

If you go to look up the amsoil PS fluid you have to look at the hydralic section then theres a drop down menu and you can select PS fluid there.

 

Thank you Hotwheelbill and rage blue for your replies. I have replaced the PS pump and rebuilt the vacuum pump so it is pretty much drained but I haven't reconnected the hoses going to the back of the PS reservoir yet. In fact, I forgot which hose goes to which spigot on the reservoir. I think the short center tube goes to the brake booster and the long curved offset one goes down to the steering box. All of the other lines are connected so I need to know how to flush the rest of the system before reconnecting the rubber hoses to the reservoir and filling with fresh fluid. Or do I just refill it as is and do the fluid refresh by suctioning out the reservoir at intervals as you suggest Hotwheelbill? I don't mean to highjack your thread but I appreciate your help. Thanks!

 

Well, I was going on the advice of others here on the forum about how I did my change. I will say it was a very easy way to do it.

 

Be very careful not to get any oil into master cylinder. Just a very small amount can cause major brake system failure. The seals in brake system are not compatible with oil and will cause these parts to swell up and lock your brakes and master cylinder. If the cap on master is swollen or if there is any oil in reservoir a complete system flush and replacement of all hydraulic parts might be necessary.

 

I sell & service the chemicals and flushing equipment that the dealerships use for their services. Coolant, Trans, Diff, Engine, Fuel Sys, Power Steering, Brake, etc etc etc. I flushed every fluid on my Dodge when I first started with the company. I could feel a difference in pedal feel after I flushed the brake & clutch systems, and better feel in the steering after the PS flush.

I recommend doing it with the equipment, because it's a total flush and cleaning of the system to remove any contamination.

For your DIY guys, you can do as mentioned above by draining or sucking out the old fluid, then filling it back up, but you'll have to do it over a coarse of several times to get the old fluid completely out of the system.

 

I had only put ATF in the pump, not the Master Cylinder or brake resevoir(?).

I have not changed mine back to PSF yet as I can not find any SYN. PSF in Jacksonville Fl. I plan to look online for some this weekend.