PS Pressure Switch

[Porquer]

I’m looking for a power steering pressure switch, and it seems that they are no longer sold new. Has anyone used a newer style one, and spliced in a new connector? Or is there a source for these that I’m not finding?

[ghetdjc320]

What is the switch for? Does it turn on a light or operate another function? 

[Porquer]

1 hour ago, ghetdjc320 said:

What is the switch for? Does it turn on a light or operate another function? 

My understanding is that it tells the ECU to increase throttle to avoid stalling under high power steering pump loads.

[ghetdjc320]

I’ve never seen one before, but if you still have the wiring harness for it, check and see if one side goes to ground. It’s likely just a simple normally closed or normally open pressure switch that you could harvest off of another vehicle. Does the engine try to stall without it? 

[Porquer]

@ghetdjc320 I’m gathering parts to convert my 87 2.5 from manual steering to power steering. The wiring is already there, so it’s just a matter of finding the parts. I’m having trouble finding the switch in a wiring diagram, but I found it in a schematic, and it connects to C227. I assume it is a simple on/off pressure switch to ground. I may be able to get one from a different vehicle if the threads and closing pressure are the same. I’m in a bit of a junkyard desert.