the four wheel drive is opperated by vacuum that's probably where your problem is
Check fuses and light bulbs
1997 fordexpedition wont start and the theft light is flashing
When engaged in four wheel drive light flashes but wont engage the shaft locks but no four wheel actuator is not pushing out in my 97 tahoe?
The main dome light control switch is turned off.
Which fan are you refering too? cooling fanHeater fan
well then it seems like you have a problem!
when i try to engage 4xhigh from2xh both 4xh and 4xlow flasg green and wont engage,what could be the problem
The linkage or cable is broke
In the case of my 2003 Expedition, it turned out to be a bad starter motor after 55K miles.
Bulb is blown or has been removed.
it is obviously broken. you'll need a new light fixture
What you do is get a new charger.that's what is what was wrong with mine