"James1549" > wrote in message
...
> >They're sealed motors, but they have brushes in them. Those brushes wear
>>out. When they do, you get the symptoms that you describe.
>
> First you should check to see if 12volts are present at the fan motor to
> properly diagnose the problem. Anyone can throw parts at a problem,
> especially
> when it isn't your money.
>
> Before starting the car, unplug the fan motor. Have a mult-meter or 12v
> test
> light ready. Start car and turn on A/C. Check for voltage at harness plug.
> If
> present, plug fan back in. If fan does not run, then replace motor.

Even if it does run, you might need to replace the fan motor. At the end of
the brush life, the motors become intermittent - they can start working if
they're bumped or jiggled.

But, it's a good idea to confirm that you're getting 12 volts to the
connector.

>
> If no voltage present at either wire, then you need to diagnose a bit
> deeper.
>
> James