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How do I bleed Power Steering system?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Waxer, Sep 20, 2001.

  1. Waxer

    Waxer 1/2 ton status Author

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    I have completed a ton of work on my K5 with relation to the entire frontend. The steering box was taken off and put back on as was the ps pump, lines were disconnected and the pump was drained as was the gearbox and lines. I wanted everything fresh. My steering is slow to respond and seems sluggish. I'm suspecting that I need to bleed the system somehow. How do I do this? thanks in advance.

    Crawlin the rocks with my K5
    <a target="_blank" href=http://www.rockreadyk5.com>http://www.rockreadyk5.com</a>
     
  2. Esteban86K5

    Esteban86K5 1/2 ton status

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    I don't know if this is correct or not, but I recall someone telling me that you have to raise the front of the vehicle off the ground, turn the truck on and turn your tires back and forth a few times quickly. like I said I don't know if it's true or not.[​IMG]

    <font color=blue>Esteban</font color=blue>

    <font color=red></font color=red>
    <a target="_blank" href=http://coloradok5.com/gallery/Estebans-album>Take A Gander At My Truck Here.</a>
     
  3. yunit

    yunit 1/2 ton status

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    You can leave it on the ground, just unscrew the cap, turn the wheel back and forth till the fluid stops bubbling.

    1987 Jimmy Sierra Classic, Palisades Park, NJ 07650
     
  4. chevrules

    chevrules 1/2 ton status

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    Esteban is correct but do not turn the wheel quickly.I just turn them slowly,with the cap off the power steering pump to let the air out.Just make sure you keep an eye on the fluid level.

    chevrules...always has and always will
     
  5. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    Been there so I can tell how fun it is. Raising up in there just makes it easier to move it side to side more than anything. Moving it side to side move the fluid around more and pushes the air out. The deal is that as soon as you fill that thing up your gonna have fluid everywhere. The resovoir starts getting filled up with foamy fluid because all of the air being evacuated. It may seem to take forever but only add a little at a time because otherwise you'll have a foamy mess on your hands.

    <a target="_blank" href=http://www.geocities.com/bigkern76>http://www.geocities.com/bigkern76</a>
     
  6. Cmoe

    Cmoe 1/2 ton status

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    I always have raised the front end of my vehicals to take stress off of the pump and steering box.....Along with the use of a finger to turn it as your standing outside to keep an eye on the resevior....

    C'moe

    <font color=black>the blazer is "Back in Black"
     
  7. jimmyjack

    jimmyjack 1/2 ton status

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    I cracked my return line open on the gear box when I put my new box on this weekend(the one that clamps onto the back of the pump) as it got loose a bunch of fluid foamed out and then I filled it as nescessary. Its a little messy but its quick. The best part is what I thought was a massive crack on the frame turned out to be nothing but a thread of road tar.

    That jeep thing? Yah I understand it....... Like my Blazer? <a target="_blank" href=http://community.webshots.com/user/blazerk5>http://community.webshots.com/user/blazerk5</a>
    Jim
     
  8. Boss

    Boss 1/2 ton status Author

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    Or, just disconnect the pitman arm or drag link. I wouldn't do this with the tires on the ground (if pitman arm or drag link isn't connected.), especially with big meats, you'll never turn that thing. You'll have to turn the wheel back and forth atleast 20 times. No bubbles can be in the pump. It's better to have 2 people do this. One turn the wheel and the other check the level. The fluid will raise and drop as it is being turned. Once the fluid level stays constant and no bubbles, then you're done.
    Try bleeding the system with a Hydraulic assit ram and a 15,000gvw cooler used for the power steering.....I turned the damn thing atleast 1,000 times!!!!!!
    Boss

    Pic of my truck Before N' After
    <a target="_blank" href=http://coloradok5.com/gallery/BeforeNAfter>http://coloradok5.com/gallery/BeforeNAfter</a>
     
  9. Leadfoot

    Leadfoot 1/2 ton status Premium Member

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    Speaking of which, how is the steering now? Is the box cooking or is it cooler.

    See my rig at <a target="_blank" href=http://coloradok5.com/gallery/Leadfoot>http://coloradok5.com/gallery/Leadfoot</a>
     
  10. Burt4x4

    Burt4x4 3/4 ton status

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    I did mine perrty much the same way but I shut off the motor after 2 full turns. Drank a beer while watching the fluid bubble. when the bubbles stoped I fired up the rig did two complete side to side turns shut it off drank another beer while watching more bubbles. I did this until no bubbles and no beer was left. Man i was drunk but this method kept the fluid from getting all foamy and such....[​IMG]

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <a target="_blank" href=http://www.geocities.com/baja/5099>www.geocities.com/baja/5099</a>
     
  11. Boss

    Boss 1/2 ton status Author

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    Lead,
    That AGR box was cooking no matter what. So I called and had them send me out a new one (Super Box I, instead of the Super Box II that I previously had). This new box runs sooo much cooler, but does not turn as smooth and easy. Who knows. Anyhow, the new box they sent me is leaking, but I'm going to try and fix it and not bother with those fools anymore. Thanks for asking. Take care.
    Boss

    Pic of my truck Before N' After
    <a target="_blank" href=http://coloradok5.com/gallery/BeforeNAfter>http://coloradok5.com/gallery/BeforeNAfter</a>
     
  12. michaelm

    michaelm 1/2 ton status

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    have you tried leeches?
     
  13. jimmyjack

    jimmyjack 1/2 ton status

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    You drank a beer while while you waited for the bubbles? Maybe that explains my severe case of boredom!

    That jeep thing? Yah I understand it....... Like my Blazer? <a target="_blank" href=http://community.webshots.com/user/blazerk5>http://community.webshots.com/user/blazerk5</a>
    Jim
     
  14. chevyfumes

    chevyfumes Court jester

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    Watch for the muzzleflash!
    I took mine off to do the frame repair and never heard of bleeding the pump. Is my truck going to explode? It seems to work just fine[​IMG]

    <font color=blue> I'd rather have a bottle in front of me, than a frontal lobotomy!
     

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