Ok weird issue and I'd like to hear some feedback on where to start chasing.
This is my 1997 tahoe. When the blower motor is running, usually low speed and I hit the brakes I hear the fan speed change. This only happens when the truck is in motion it seems. It does not appear to do this when sitting still. Ideas? Battery is new and was doing it before then. Alternator has some years on it. I notice no other electrical current draining types of issues. Is this a motor or resistor problem?
So?
This is my 1997 tahoe. When the blower motor is running, usually low speed and I hit the brakes I hear the fan speed change. This only happens when the truck is in motion it seems. It does not appear to do this when sitting still. Ideas? Battery is new and was doing it before then. Alternator has some years on it. I notice no other electrical current draining types of issues. Is this a motor or resistor problem?
So?
