With summer here, my car's fan is down to one speed, high and noisy, I have to
turn up the radio to hear it.
I opened the dash (as best as possible), checked the 4 position selector switch,
completely. Clean, lubed and in working order. Then I pulled the heater/AC
blower motor out, removed some dry leaves and found at that 2-wire harness, with
the car engine running, I was getting:
1.8 volts on low, 2.5 volts on the next speed, 11 volts on the next, and 14
volts at high. The blower motor looked good.
Now there's got to be a hidden resistor card somewhere and I suspect that it's
Any ideas on where to look, or do I just keep excavating?
Before the fan speeds stopped working, I found that they were not set well for
user comfort. I really want one in the middle, a bit of air but not so much
noise. Maybe I can splice in different resistor, if that's what it takes.
Any suggestions on the repair?
"AC questions gladly replied to."