Proper method to burp PS

[jmcS4]

can someone tell me the correct way to bleed the system of air for the power steering. i followed the bentley manuals instructions and the pump is screaming at me and i can't turn the wheel now. the fluid overflowed and i didn't even have it filled to max. tbh i feel the manual was kinda of vague.

just incase someone is wondering i started off my priming the system by having it run for 2sec's and 30 sec rests in-between as well as having the wheels off the ground and turing to full lock 9-10 times.

maybe i missed something but another view would help

thanks in advance guys

[pwest15]

Hmm, I first filled to the fill line with ps fluid, closed the reservoir, let the car idle for 10 minutes while it whined, then turned it off, noticed a ton of bubbled, filled again, and repeated this over and over. I turned lock to lock a few times with my wheels ON the ground and after a while, the pump quit making noise, there were no more bubbles in the reservoir and I topped off the fluid. The ps system is pretty big and takes a while to bleed. I'd just keep at it but it's strange that you said it overflowed though, I'd never think that would happen unless a lot of built up, excess air pushed it out.

[boomtime]

Hmm, I first filled to the fill line with ps fluid, closed the reservoir, let the car idle for 10 minutes while it whined, then turned it off, noticed a ton of bubbled, filled again, and repeated this over and over. I turned lock to lock a few times with my wheels ON the ground and after a while, the pump quit making noise, there were no more bubbles in the reservoir and I topped off the fluid. The ps system is pretty big and takes a while to bleed. I'd just keep at it but it's strange that you said it overflowed though, I'd never think that would happen unless a lot of built up, excess air pushed it out.

x2
This sounds like a winner.

[2004B6S4]

that sounds odd that it overflowed. When I bled my system I had it at the max level and was a little concerned that that might happen, but I watched the res and nothing came out at all. maybe it was just from a ton of bubbles in the fluid, I hope it's not a sign of a more serious issue

[badger.]

You are low on fluid.



1. have PS reservoir open and stand there with a bottle in hand

2. have someone else start the car

3. immediately add fluid



The reason it is overflowing is it sucks down right as the car starts and pulls in air, creating bubbles and drastically increasing the volume from all the bubbles so it then overflows. Also this is a good time (with the front end on jacks) to have your helper int the car turn the wheel near full lock left to right a few times while it is running and add fluid as needed if air is purging throughout this.

failing that, you likely are sucking air elsewhere in the system.

[JimmyBones]

I bleed the air out of the power steering fluid system by doing this:

1. Fill the reservoir with fluid and leave the cap off.
2. Start the engine, let it run for thirty seconds, and shut off the engine.
3. Let the air bubbles go away and top off the level.
4. Repeat steps 1-3 until there are no air bubbles present.
5. Start the engine, let it run, turn the steering wheel from lock to lock a few times, shut the engine off, and let the air bubbles go away.
6. Repeat step 5 until there are no air bubbles after shutting the engine off.

A lot of people try to bleed the power steering with the cap on and there isn't enough of an opening for the air bubbles to bleed out correctly.