I know that my fan motor has only two wires.  Some time ago, when I had a shop replace the radiator, the fella who installed it broke the posts on the fan motor and wanted me to replace the whole fan at my cost.  We settled for him paying for half the cost of having another shop repair the posts, based on his claim that the posts would not have broken had they not been "ready to break."  That's when I found Darrel Cook in Norman, Oklahoma, whom I will really dislike leaving behind as my Vanagon mechanic.  Of course, the posts were easily fixed with nuts and washers, and the radiator guy could have done it had he both wanted to and been smart enough.

BTW, Dennis, Darrel keeps everything about the tuning (such as timing) set to factory specs.

Ok, knowing how my fan is set up, how do I test out the speeds to 1) determine that all speeds work, and 2) learn to tell when each speed is operating?  I have always assumed that when the fan got loud, it was the high speed,but come to think of it, I don't recall actually hearing two different speeds.  I just thought I could not hear it from inside the vehicle when it was on low speed.

mcneely

---- mark drillock <mdrillock@COX.NET> wrote:
> Many 86+ vans have a larger fan motor that has only 2 wire connections.
> But the factory added an external resistor to slow it down for a low
> speed setting and often a medium setting as well. So a single speed fan
> motor that operates at 3 fan speeds for 86+ with factory A/C is very
> common and that is what Dave has.

 stuff cut out

> The large fan motor version makes a VERY noticeable noise on highest
> speed. Loud enough to make my heart jump when it suddenly activates up a
> long grade. The low speed I sometimes notice but often other sounds
> drown it out.
>
> Mark