So, I guess it was the summer before last, but I put a new power steering pump, and rack on my car. So, the system was pretty much dry. I bled the hell out of it, including using a vacuum pump and the Mityvac fitting for the top of the reservoir. I noticed last year, my stupid pump is still more noisy than I'd like, especially considering it's essentially brand new. I can only guess there's still air in the system. I used type F fluid, and the level is good. The steering feels fine when you drive. So, how do i get that last bit of stubborn air out of my system? I've thought of all sorts of crazy ideas such as opening up the system at the cooler lines or taking the high pressure line off the pump and taking a squeeze bottle and forcing fluid through. I don't even know if that would work though. Or putting the hose at the cooler lines in a pan of fluid, letting it drain while adding more to the pump reservoir and watching for bubbles.
I should add the car does sit a lot, so I don't know if that has something to do with it.
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