Power Steering/Hydro-Boost Flush

[Hook'em_Horns!]

Originally Posted by DuramaxOnTheBrain

Sorry I just now saw this. My email notification doesn't always work...?

I too have been getting notifications that are 36+ hours old.

[DuramaxOnTheBrain]

That's a little too slow huh?

[06farmtrk]

Hookem,I just flushed my hb unit this morning and used the Dec VI fluid. I tow pretty heavy and was wondering if you noticed if it lasted longer than reg ps fluid.

[Hook'em_Horns!]

Originally Posted by 06farmtrk

Hookem,I just flushed my hb unit this morning and used the Dec VI fluid. I tow pretty heavy and was wondering if you noticed if it lasted longer than reg ps fluid.

Yes, it has held up better. I'm going to try a switch to syn PS fluid as a member sourced NAPA as stocking a Valvoline synPS fluid. Just called and they're going to order it, be here tomorrow. $4 something instead of $6 something for DEX-VI.

Rumored also that GM parts has one for a SAAB exclusive use, but that's probably mas Dinero$.

[06farmtrk]

Ok. Let me know what you think of it. Do you believe it will be a little better for the HB unit versus the DEX-VI?

[scott111]

Have any of you changed the HB yourself? If so, is there a gasket that came with the part that goes between HB and MasterCylinder? Or any other gaskets I will need?

#1 Texas Longhorns!!!

[Hook'em_Horns!]

Originally Posted by 06farmtrk

Ok. Let me know what you think of it. Do you believe it will be a little better for the HB unit versus the DEX-VI?

Well, that was a no go. I couldn't find the product on the Valvoline site any longer. Come to find out they have a new part number in place of the old for SynPower, which in reality is just plain PS fluid. It's been discontinued. So, the search is still on. Some had suggested the product for SAABs in a green can, but this is NOT a synthetic fluid.

Royal purple is available for just under $5 for 12oz., not in my price range.

[Hook'em_Horns!]

Originally Posted by scott111

Have any of you changed the HB yourself? If so, is there a gasket that came with the part that goes between HB and MasterCylinder? Or any other gaskets I will need?

#1 Texas Longhorns!!!

No. Simple stuff, requiring about 30 minutes. Remove the two nuts from the studs connecting to the Master Cylinder, and move forward out of your way. DO NOT remove any brake lines or open the brake system in any way.

Remove the threaded couplings for the high-pressure lines and remove the clamped-on low pressure return line.

On the inside, remove the keeper connecting the push rod to the brake pedal. Remove the 4 nuts from the studs on the HB unit, I recommend a boxed end swivel head ratchet wrench.

Pull the unit forward to remove, and then work in reverse to install the new unit.

Hook up the lines, start the motor and cycle through as described in the flush instructions by moving the wheel left and right while depressing the brake pedal. The unit is self-priming, so kill the engine, and check your PS fluid levels to add back what the new unit displaced in fluid, and you’re good to go.

[scott111]

Cool, Thanks.
Just one dumb question so I am clear. Is it supposed to be dry where the HB and MasterCylinder connect (no fluid)? Becuase that seems to be the place it is leaking from but I could be wrong about that. I was wondering about a gasket becuase I was under the impression that there was fluid under pressure at that connection.

[Hook'em_Horns!]

Not dumb, just a logical conclusion, viewing two units joined together.

Here is a pic, (I like pics )


Recessed in the unit body at that connection is the seal for the piston rod, which is worn, leaking and seeping through that connection.