Mine got flakey in the middle of a long hot trip a couple of years ago.
 We finished the journey with a paper clip stuck in the socket which
kept it on the 3rd speed all the time.  I did eventually open up the
switch and repair it, but I don't remember the details.  I believe that
corrosion on the contacts had caused the switch to heat up and the
plastic supporting the 3rd speed contact had sagged so that it was out
of position.

Larry A.
'91 GL

Zeitgeist wrote:

> Has anyone broken into the four position AC blower switch to fix
> intermittent or inoperable speeds?  My third position (the most optimal)
> works sometimes, but will cut out after a spell.  Is this something
> that can
> be fixed by cleaning corroded contacts, or are they burnt, or what?
>
> TIA
>
> Casey
> __________________________________________
> '87 300TD intercooler/propane/biodiesel
> '94 100CSQ Avant
> '90 90Q
> '89 Bluestar
>