Herbert Graf wrote:

> >
> > Most likely a coolant temperature sensor.
> > Unscrew it, stick it in hot water and
> > check that the resistance changes. Also the
> > radiator must have been earthed through it's
> > mouting bolts. :o)
>
>         As far as I can tell there is no path to ground other then the coolant. All
> the mounting points are either plastic or rubber, and all the lines are
> rubber, that is what has confused me. I measured the coolant and it is kinda
> conductive. Thanks, TTYL


I expect that on the vehicle that had this
sensor it would also have an earth lead etc
to ground the radiator.
-Roman

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