Power steering bleeding

[Woodblocker55]

What's the devise they use to get air out of hydro boost power steering pump I had to change all hoses and been running it for month now and still
Having air symptoms. Do they have something that goes on the cap of pump ? I learned anyone who changes all hoses with hydro boost have this issue .

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[Scottydoggs]

no tools but a floor jack is needed. run the engine fill the res tank up if it keeps taking keep adding, once it stops taking fluid. jack both front wheels off the ground, engine running pump the brake pedal 15-20 times. then turn the engine off but leave the key to run, and turn the wheels lock to lock 15 times. fill res again if need be. repeat if the brakes still feel spongy.

 

[Woodblocker55]

I'm going buy the vacuum cap for power steering pump and try vac. Bleed it . Mine has hydro boost and cooler I can't get the air out.

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[Scottydoggs]

what i posted is how to bleed hydro boost set up......try it, its free.

 

[Woodblocker55]

I tried it 3 times is the 4th time the charm ? Yes your whole process you wrote down .[emoji106] It's still giving me crap.

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[Scottydoggs]

well that sucks. it should clear up and give ya a firm pedal. i have to do it to the work truck that has a leaky line like once a year. as the hose end drips i suppose it lets air in the line. i do that once and its all better till it leaks low again.

hows the steering? it turn easy still? wondering if the pump is going bad, or is bad?

 

[Scottydoggs]

oh, did at any point fluid burp out the res of the pump? work truck burps the air out every time i do it. pushes fluid out too cap on or off.

dont suppose theres any way to mix up the booster lines?

 

[Fless]

@Woodblocker55 have you tried the method that @SnowDrifter detailed here?

https://www.tahoeyukonforum.com/threads/how-to-bleed-hydroboost.113409/

 

[Woodblocker55]

I ordered the cap and I will retry as you said also I called the pump reman company he said only way most guys get air out is hooking vac pump to power steering pump
But he did say lines can suck air but not leak any fluid also witch is issue your having . I'm going to put old style hose clamps on all connections to cooler and return lines . Yes stainless clamps .
The brakes work ok but steering in parking lot it's like Manuel steering for 30 secs or so when cranking out of tight spot .

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[Fless]

Your power steering pump may not be putting out enough pressure, especially at low rpms. Might want to have the pressure tested. My PS pump was whining a bit and had to be replaced, with the result being easier steering and somewhat better (hydroboost) brakes. YMMV