1998 lincoon mark VIII blower fan problems
The blower fan for the heater and a/c doesn't want to go above low speed sometimes, no matter if you use the switch or the auto climate control, but then al of a sudden it will start working and the switch will speed up and slow down the fan and if i put it on auto climate it will work fine too. Does anyone have any ideas.
If it intermittently changes speed you most likely have a blower motor resistor starting to go away. It is possible that the motor or the HVAC control is bad but not likely. Test the resistor, you'll probably nail the problem.