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Originally Posted by FD7683
All fixed! Rebuilt the pump yesterday and discovered o-rings dry rotted and hard. Today I jacked up the front wheels and turned the steering wheel when it was turned off and running. Following the Toyota PSP bleed procedure and on the 2nd round, all air pockets are gone. Just now topped up the reservoir to hot line and the power steering on my truck never felt great in years!
HIGHLY recommend the Gates 348376 kit to rebuild the pump. Patience is key. I think the main cause of my problem was the reservoir screen being blocked of junk. 3 cans of brake cleaner got it clean enough.
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Nicely done and congrats on getting to the bottom of your problem. Good call on sticking with your original pump and doing the rebuild.
