If the fan motor does work but only at one level, I would suspect not the motor but the large resistor that sits right above the motor. Take a meter or a probe lamp and check that you have at least continuity on the connections. If you don't I would look at replacing the resistor. Oh by the way I have a spare motor/resistor/casing available if you need it. Thanks, Joel 89 Syncro Westy Rochester NY. --- Jim Wheaton <jim@MUSCLEFISH.COM> wrote: > Don't count out the possibility of switch failure. I'm in the > middle of > the same procedure, only I discovered that my switch was bad *AND* > the motor is bad. It wasn't too hard to take a apart the switch > and sand > down the small metal pieces that had been corroded and test with > a meter. After fixing the switch, only speed 3 did anything, but > what it > did do was force the motor to spin momentarily and then start > things > smoking! Felt like bad bearings to me.... > > Jim > '90 MV > > > John McLean wrote: > > > I just changed out my rear heater core this weekend. After the > the > > re-installation I now only have the high (3rd) fan speed. > > The low and medium settings no longer function. All three speeds > worked > > before! > > My leak is fixed now but I have a new aggravation. I took the > shroud > > back off and disconnected and reconnected the wiring thinking > there > > might have been a bad connection but nothing changed. > > While I had everything apart I blew it all down with an air hose > but > > everything was solid and nothing seemed to be wagging or > flapping. > > I can't believe the problem could spontaneously occur at the > switch on > > the dash and there is only one fuse that controls the blower > (right?) so > > the problem must be at the motor itself. > > Anyone got any insight on how to approach this? I could live > with just > > one rear blower speed (high) but I don't want to! > > > > Thanks, > > John McLean 87 Vanagon GL > > -- > Jim Wheaton * e-mail: jim@musclefish.com * > http://www.musclefish.com > Muscle Fish / Audible Magic * 2550 Ninth St., 207B * Berkeley, CA > 94710 > Berkeley: (510) 486-0141 * Home Office: (415) 485-5242
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