Just replaced a leaking but working Power Steering Pump with another used model off of another 2000 SC4 with good seals intact.

After (a pita) install, i decided to flush the system by hijacking the return hose.

While on all 4 jack stands - car started, the fluid just sat in the reservoir.

No bubbles, no return hose fluid.

I doubt the fact that the pump is 100% dead, so I am wandering if it could be the pressure hose bolted on at incorrect degree.

Has anyone else experienced this? Any suggestions?


NOTE: There was no "whining" from lack of fluid, so I am out of expertise right now.

 

Problem solved.

I thought the steering-assist was speed sensitive, but it is apparently pressure sensitive.

It only works when it truly has to; no complicated speed algorithms. So I lowered the car and all is well.

The Lexus manual never mentioned this on checking the system.

Imagine that.

 

lol the best questions are the ones that are self answered my friend glad you fixed it.. try AmsOil! best money spent!