pantera928

My heater fan squalls when it first starts if it is cold out side. I tried the old method of drilling a hole in one end and lubricating it through the hole but no change. I see 4 nuts that hold the fan motor housing to the firewall. How much more is needed to get enough access to change the motor? Does the AC need to be disconnected? Do the heater hoses need to be disconnected? THanks