Power Steering Problems When Hot!

[68c10airstream]

A trick i learned going to auto tech school in the 70's was to take a bright colored crayon and put a line on the face of the ps pulley. One line from the center to the outer edge, like a bicycle spoke. Now once it's warmed up have someone else turn the steering wheel back and forth and watch the line change rotational speed. Belts can slip but not squeel. Then you can compare the rotational image warm compared to cold.

Optical illusion can play into the image, and you can try running the engine at a fast idle and watch the image again. After a while it will make sense.