Power steering issue

Started noticing a barely perceptible resistance in my steering when driving at high speeds a month ago. Can't say I notice it at 30mph or less.

It's gotten more pronounced recently, but still is a perplexing issue: I'm driving on the highway and when I approach a curve it feels as though my steering has resistance, but it comes free as I turn, and doesn't operate at all like when the pump is gone. Again, don't notice it driving in town at 30mph.

I have noticed for several years that at startup I'll occasionally hear a 2 second whine that I assumed was coming from the power steering pump.

Fluid level is good and also clean, and I had line broken line replaced a couple years ago.

Is this possibly a power steering pressure sensor issue?

 

Check your lower intermediate steering shaft.
The lower joint likes to rust.
I had lack of return to center.
PB blast and grease helped.
But was replaced.

 

I agree.

Here is what you are going to want to look for
https://www.tacomaworld.com/threads/stiff-steering.122153/page-2#post-6918452

 

Definitely the ujoint in the intermediate shaft. Lube it and discover normal steering. Best to replace it