Underneath the driver side dashboard, near the center console, is a plastic control knob with a metal wire/bar connector that is attached to the main directional control knob (defrost, vent, floor vent select knob) on the center console. The metal wire/bar will sometimes pop off the plastic control knob, so when you turn the main control you're not actually re-directing the forced air to the selected vents. Re-attached the metal wire/bar to the plastic control knob and should fix the problem.
The a/c kicks in when u turn the defroster do dry up the air. Eliminating humidity aids in getting rid of the fog
If the defroster is blowing hot air and it is still leaving moisture on the inside of the windshield, the heater core may be leaking coolant causing that condition. If the defroster is blowing cold air it could be the cooling system is low on coolant, or the thermostat is stuck open or the heater core is plugged up or the temp blend door has a malfunction.
Check for vacuum leak either under the hood or under the dash Check the operation of the vacuum actuators Check the selector switch Defrost is the default setting on this system
IF a Vaccume hose comes off OR is bad going 2 the DASH Controls that will happen OR a bad Actuator or Actuator door (stuck) will cause that.Make sure the vaccume Canister is not cracked (if it hs one) Usally it's a very small Vaccume line(hose) that causes the Problem. You either have a vacuum leak in the heater control system, or a cable that has come off of its control panel...
Most likely the vacuum hose is disconnected or broken.Does your cruise control work?Check this out :http://www.jeepforum.com/forum/f9/fan-always-blows-defrost-selector-doesnt-work-830241/
I believe the obvious would be the benefit, you would not have to manually defrost the freezer, bbesides that there is no difference.
It is not possible to mend a crack in class. Once the molecular bond is broken, there is no way to restore it. Most windshield replacement services will come out and replace the windshield on-site.
Turn the defroster on. If you have a separate AC switch, turn it on also. The AC should come on with the defroster automatically, but might not. If no AC, set the vent control to outside air instead of recirculate.
Because it's not a defroster button! It's just the symbol for ventilating the air into the car. It shoudln't be called a defroster since defrosting is meant by heating up the coils that you see at the back of the car. I'm pretty no car has wires in the front!
It wouldn't be a good idea. Windex will streak, severely, in turn impairing your vision through the windshield.
I believe the heater core is leaking and the oily film you see on the windshield and on the floor vents is actually antifreeze. Don't know if the leak is small enough for STOP LEAK to stop it up, but it might be worth a try as a quick-fix.
a windshield wiper blade is somthing you use to wash your windows on cars so that the windows look very clean instead of just leaving them dirty