Did you switch relays between the 2 vans or did you try a new one?

If the speed 3 contact is bad in both relays switching between them
won't do anything.

The way the resistors work makes it next to impossible for them to be
your problem. Plus there is a resistor pack for each motor and  they are
very difficult to get to to replace.

You can pull out the relay and put a jumper wire between 2 pins of the
socket to feed power right to speed 3 of the resistors and motors as a
test. Let us know if you need help figuring which 2 pins to connect.

Mark

Finn Runyon wrote:
> Thanks Ken for sharing your wisdom on this problem.  As it turns out both my 87 and 89 Westy's have fan speeds 1,2&4, but do not have the most useful #3 speed.  Switching relays did not get #3 so I believe it may be one of the resistors that Dennis spoke of.  Any further advice is most welcome.
> Finn Runyon
> 87 Westy Pooh
> 89 Westy Roo
>