My 96 ford windstars blower seems to work awesome but I get No heat or cool air and no defrost for front windshield. Is this an easy fix?

SOURCE: My front defroster doesn't work

Their is a vacuum actuated valve that redirects the flow of air from the panel to the defrost vents when the defrost is selected. I would check the vacuum line running to the valve while the vehicle is running with the defroster on and check whether or not the line is pulling a vacuum to actuate the valve, if not you obviously have a bad line or vacuum line fitting. If you have suction on the vacuum you will need to check the valve and see that is functioning properly. The valve is usually located under the dash on the passengers side. If you are mechanically inclined i would go to a local auto part store and pick up a repair manual for your car for about $20 as they contain diagrams and info that will save you alot of money.

GGBMDB

SOURCE: no heat - ac stays on blowing through defrost vents

If you have the heater directed to the windshield, the AC will turn on. Move the control away from defrost.

SOURCE: Vent control

You have a vacuum leak.Defrost is the default postion(no vacuum).
See if you can locate the small black vacuum line that goes inside the vehicle on the passenger side near the heater core. The trace it back,should see it going to a canister then to the intake manifold.Make sure it is not disconnected or broken somewhere.

SOURCE: rear cooling and heating blower motor does not work

its not in the headliner. its under the side panel in the rear on drivers side. you half to remove the panel on the inside just above the rear tire. since the moter runs sometime i would replace the blower motor resistor first cause these are known for going bad and its in the same area as the blower motor. this resistor controls the fan speeds and if its gone bad the fan dont run right. plus its alot cheaper than blower motor. once you have replaced the resistor you can turn the fan on and see if its a fixya before putting the panel back in place.

Bill

• 424 Answers
• Posted on May 29, 2009

SOURCE: Air Conditioner Problems

Check for a vacuum leak. The vacuum cannister under the evap. case will crack and cause a leak. I just install a new vacuum cannister,check valve and hose going to inside of van.