It started 2 or 3 months after the change . I don't use the truck much. It is a Cardona and it is bubbling when it happens even though I have blend it several times and I get no bubbles when bleeding.
98 chevy silverado 5.7 vortec had rebuilt ps pump put on 6 months ago. After driving about 10 miles pump starts whining and hard to turn wheel when stopped. The whining only happens when accelerating turn off and restart a while later and works normal till heated up again.