Looking for a 1-psi Hobbes switch

[Gary Derian]

Actually, on one Ford I have worked on, the oil pressure gauge was connected
to a standard idiot light switch.  The gauge reads half when the switch is
closed and zero when the switch is open.  Replacing the switch with a sender
made the gauge not work at all.  This was on a 87 T-bird with digital dash.
I think Ford does this on other models as well.

Gary Derian <gderian at oh.verio.com>


> Ever wonder why Ford factory gauges have no numbers?  Can't really see
> the pressure's low if the gauge reads "low" and "high".  Tends to
> reduce warranty problems...
> Shannen
>
> Gary Derian wrote:
> >
> > For the masses, oil pressure is either OK or something broke and its
zero.
> >
> > > << How about the switch normally used on oil pressure to actuate the
oil
> > >  pressure idiot light--aren't they set at about 4 or 5 psi?? >>
> > >
> > > Ouch...if they wait till your oil pressure drops to 4-5 before setting
off
> > > the idiot light.......  :)
> > >
> > > Van