Power steering switch replacement

I assume you are referring to the pressure switch? I am not sure of another power steering switch so please let me know if this is not what you were talking about.

I included a lot of information about the pressure switch which is actually called a flow control valve on your vehicle. Let me know if you need more or different information. Thanks

The issue you are having trying to find this is most likely because it is sold as part of the pump. They show how to remove it for cleaning purposes.

Yes. Low fluid will cause a whine to the pump. It should only be changed when the fluid smells burnt. This is not a common requirement but if the pump or other component in the steering system is changed, it is a good idea to flush the fluid.

Sorry for the confusion. The fluid itself will smell burnt. Just get a quart of new fluid and smell that. Then smell your fluid in the reservoir and it should be similar. If it smells bad compared to the new fluid then you need to change it.

Here is the procedure for draining and bleeding the system.