Line Pressure Low At Idle In All Ranges
WARNING: This page is about a different car, the 2002 Ford Escape, 2001 Mazda Tribute, and 2001 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
Check for low fluid level, restricted inlet filter, loose valve body or valve body components, oil pump leakage and sticking main regulator valve.