Re: How do i change the power steering pressure switch on... From the Factory Service Manual, you can get one relatively cheap from www.promanuals.net. Here is a link to your 2004 Dodge Ram Service Manual. The power steering pressure switch is installed in. the power steering high-pressure hose (Fig. 9). (1) Disconnect electrical connector from power. steering pressure switch. (2) Place a small container or shop towel beneath.