Just purchased an 86 gl, the blower motor works intermittently. Checked for power at the motor, appears to be a problem with power coming in to the motor. I have traced the wires from the motor back and find no obvious shorts, what else should I be checking, is there a relay that could cause this? Any help would be appreciated. Thanks.

There is a relay under the dash that could very well be trouble. By turning on the blower and trying to get it to work by tapping on the relays you might be able to locate it.

Thanks I will give that a try.