Quote:
Originally Posted by look 171
Turning steering wheel with brakes pressed, not moving. Shall I try it on P or N? All lines, pulley, pump (factory GM), and Steering box but I did not replace the hydroboost behind the brake reservoir. No leaks anywhere. Maybe I should ditch the old fluid and just use GM or AC delco? I think it NAPA or Valvoline in there now?
|
Sure, just try it in park/ neutral without brakes depressed.
You have replaced the lines which surely came with new o-rings. Saying this because I have an Odyssey that had a leaking line o-ring on the suction side of the PS pump. It never leaked and I don't know why (high up on the engine?) . However, it sucked air badly when running. Constant noise maker and foamy fluid in the reservoir.
I don't understand enough about the hydroboost system to state why there were bubbles appearing in the PS reservoir when you hit the brakes. That's an odd one.
I have replaced a hydroboost unit on an Escalade. It was a moderately cumbersome job but it may have no comparability to your set up.
I would get your google on to see if there is a preferred fluid and change that out first since the existing is changing colors.