I have same issue with power steering whine on my EXT when making slow left turn on 2004 Cadillac Escalade EXT

your advise to another was to replace rack & pinion, my truck has 76000 miles and sets a lot. would lucas product help me. the problem just started and not severe yet.

Asked by for the 2004 Cadillac Escalade EXT
Flush the power steering system, then add some conditioner. New Fluid.