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Old 04-07-2015, 10:54 AM   #1
WhiteGLX
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Different PS Issue, need help ASAP

So I have been battling a PS issue on the VQ35HR S14 for quite some time.
Car has a Chase Bays PS kit to connect the VQ to the S14 rack.

A lot of whine from the initial pump, even at idle with no movement. Swapped that pump out.

Installed another pump, minimal whine but steering was very rough and difficult.

Installed a different rack and now steering is smoother, but the whine is back.

Replaced the pump again and blew air through the PS Lines and spent a lot of extra time bleeding the system.

Now after bleeding the PS is very quiet until I set the car on the ground and move the wheel, then it whines again and tons of tiny bubbles appear in the reservoir. Let the car sit over night and started bleeding again. It sounds as if air is trapped in the rack and circulates into the reservoir and then the aerated fluid pumps through the system and gets air back into the rack and the whole process starts over again.

Any pointers on fixing this?

Currently using DexVI ATF, Chase Bays PS reservoir and lines, no cooler (removed to figure out issue), VQ PS pump and S14 PS rack, no leaks.
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