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Proper procedure for bleeding PS system

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95 impreza wagon awd 5sp 1.8l

 

What is the proper procedure for bleeding the ps pump after replacement.

also, should i totally recharge the whole system, or just add what is needed after install.

 

Also what kind of fluid would you all recommend for the PS?

thanx a bunch.

use whatever fluid the owners manual recommends. if you don't have one, get one, they're really helpful for fluids, capacities, etc. i think it's just ATF for almost all Subaru's.

 

as for bleeding it's a rather benign issue here. you're just replacing the pump, that's easy. just replace and refill it.

 

i just removed a pump from an EJ25 a couple weeks ago, i didn't even think about bleeding it. reinsatlled, refilled, perfect steering.

 

if you want to be all anal about it, turn it lock to lock, a few times.

 

i've done motor swaps, pulled out all the rack lines, swapped racks, etc and never had a problem with them. not much too it really i don't really ever remember doing much more than filling it up.

Yes - the procedure for bleeding the air out is to turn the wheel lock to lock about 5 times. The air will escape as it passes from the high pressure side to the return line.

 

GD

Yup, fill it up and start the motor then turn the wheel from lock to lock holding it on both locks for a few seconds. You will hear the bubbles clearing away. Recheck the level afterwards.

It's not a bad idea to "freshen up" the fluid on occasion--working on the pump would be a good time to do it. Just remove as much old fluid as you can (turkey baster, syphon or gravity) and replace with fresh, then do the lock-to-lock trick and top up.

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