One problem related to o2 sensor has been reported for the 1999 Ford Windstar. The most recently reported issues are listed below.
I never knew about Ford's recalls until last March. Before calling Ford I did research and found numerous people have the same problems as me. Mine started in 2012 when out of the blue the front windows would no longer open. Next when you tried to put the heat on in the rear there was strange noise and now I'm to afraid to use it. The past 3 yrs the gauges go haywire. Sometimes if you hit the dash it'll stop but locks up and you don't know what your speed is. If I leave it alone sometimes it will stop on it's own but locks up to wherever it stops at. On numerous occasions the abs light will come on. For over 2 yrs now the check engine light has been on. I had it checked & was told it was the O2 sensors for which I replaced, 3 days later the engine light came back on again they said it was the O2 sensors. In the past 2 1/2 yrs I've had to replace the battery because while driving the battery light will come on. If I accelerate it goes off but nobody knows why the battery keeps dying. Some say its an electrical problem draining the battery. The interior lights will come on for no reason so I had them removed as I thought it might be draining the battery. Last summer out of the blue the a/c started making a noise and just quit just like a month ago I heard this clicking noise only to find out I had no heat. I spoke to Ford about the gauges, the electrical problems, the a/c and some of the other issues and their response was it wasn't on their recall list and would only fix the rear axle, cruise control and the front if there was anything wrong. When I mentioned all the info I found on NHTSA's site about this vehicle I was told they have no control over what is fixed. I am disabled and am living in a place for the homeless & with all these problems how does Ford expect me to fix their defects? every time I have to drive which isn't often I pray I make it to & from safely.