Thanks Ken. There is something the that is definitely not right -  maybe on
both vans.

On the '88 the fan comes on, but in high speed mode. It cycles like it
should.

On the Carat, the fan simply doesn't come on. Fan works fine for the engine
since replacing the switch on the lower left of the radiator, but doesn't
work at all for the AC.

I have to replace th receiver dryer and need to flush the system. What do
you recommend to flush it with?

John

On Jul 22, 2016 13:42, "kenneth wilford (Van-Again)" <kenwilfy@comcast.net>
wrote:

Fan should come on low speed with or without pressure.

Ken

On Fri, Jul 22, 2016, 2:39 PM John Rodgers <jrodgers113@gmail.com> wrote:

> The AC system has not been run for at least 15 years - the ten years it sat
> in a garage and the 5 years I have had it. Will the high speed fan come on
> if I DO THE FOLLOWING:
>
> (System empty or low on refrigerant))
> Ignition ON ( but not start)
> AC blower fan set to low
> AC CONTROL set to cool
>
> Will the fan turn on? It does on my 88'
>
> Or do I have to raise system pressure to get the system to turn on? I know
> when it gets sufficiently low it shuts itself off and will not run.
>
> Thanks ,
>
> John
>