Hi,
I recently had to do some work on the steering rack and I had to take it out of the car. Now I've put everything back together, filled the PS system with new fluid and bleeded it. Now the power steering works OK but the pump makes a hissing noise when the steering is turned. I know this can come from air still trapped in the fluid but I've spent a few hours to bleed the system without any change in the noise! The fluid level in the reservoir is OK and does not drop. Moreover I have absolutely no foam forming on top of the fluid reservoir so I assume the fluid is correctly bled no?
I doubt the pump would have gone bad by coincidence just after having done the job on the PS system. Before that there was no noise coming from the pump or PS lines.
If there is still air in the lines, why does the bleeding not remove it efficiently?
Thanks
I recently had to do some work on the steering rack and I had to take it out of the car. Now I've put everything back together, filled the PS system with new fluid and bleeded it. Now the power steering works OK but the pump makes a hissing noise when the steering is turned. I know this can come from air still trapped in the fluid but I've spent a few hours to bleed the system without any change in the noise! The fluid level in the reservoir is OK and does not drop. Moreover I have absolutely no foam forming on top of the fluid reservoir so I assume the fluid is correctly bled no?
I doubt the pump would have gone bad by coincidence just after having done the job on the PS system. Before that there was no noise coming from the pump or PS lines.
If there is still air in the lines, why does the bleeding not remove it efficiently?
Thanks