On Mon, 6 Apr 1998, KENWILFY wrote:

> I just noticed what looks like a leak from the sender on the back of my power
> steering pump on my '91 Carat.  What exactly does this sending unit do.  How
> much do these normally cost and do they regularly go bad or is this an
> isolated thing?
> Ken Wilford
> John 3:16
>
  This is a pressure switch that tells the engine computer to kick
the idle up in a high pressure situation. I've never seen one
go bad.                                     Eric