Tom, most likely the radiator fan low speed resistor is bad.  We have these
in stock.  It looks like a green roll of quarters and lives behind the
drivers side headlight assembly.  It can be easily replaced.  Let me know
if I can help you further,

Ken Wilford
John 3:16
www.vanagain.com
 On May 3, 2014 1:06 PM, "Mister Tom" <TomsGroups@salicos.com> wrote:

> The high speed radiator fan comes on before I expect it when I am stopped
> in
> traffic.
>
> This can occur  well before the needle hits the LED.
>
> The system will run with needle in the middle of the LED on warm days, so I
> think the gauge is good.
>
> I have replaced the fan switch and it acts the same.
>
>
>
> I have a bleeder valve on the radiator, with a tube into a jug of water.
> The
> system doesn't push air out, just coolant.
>
>
>
> So I am asking if the radiator itself can go bad in some way where the fan
> switch sees hotter temps than the circulating coolant?
>
> I didn't think the radiator would trap air any place except at the top.
>
> And then. it doesn't happen all the time.
>
>
>
> Thanks for any help.
>
>
>
> Tom Salicos
>
> '87 Syncro Westy w/EG-33
>