This device is the focus of a few different questions - from the symptoms caused by a leaking switch, to the TSB (Technical Service Bulletin) detailing the problem with the leaking switch.
See "Related Questions" and "Related Links" below for detailed / photo how-to guides to replace the switch, and a website dedicated to the problems caused by, and how to make repairs.
i have no peddle pressure and i already replaced the master cylinder
Replace freeze plug in a 1998 ford windstar ?
There are five steps on how to replace the fuel injector in a cylinder. Some of the step-by-step instructions are disconnect the negative battery cable, relieve the fuel pressure, and remove the cylinder head cover.
I don't know how to do it, but the dealer is charging me $2075.00 to replace it on my 2000 Windstar!
When vapor refrigerant is pulled out of a cylinder the vapor is reduced and the liquid boils to replace the vapor that has left the cylinder.
They don't really break. The internal seals deteriorate and fail. This results in the master cylinder not holding pressure. The repair is to replace it.
I have a similar problem. Once in a while I can't turn the key to the start position. I have found that turning the key towards the acccessory position first releases the key cylinder. Apparently this is a quirk of the '99 windstar. Carl
One cause is that the cylinder the caliper piston moves in has scores - grooves worn in the cylinder walls that the edge of the piston is catching on. One of the easiest approaches would be to replace the caliper with a remanufactured / rebuilt one.
To replace an ignition switch on a Windstar, it will cost you approximately $200. This can also depend on the age of the vehicle as well.
Refer to the instructions in the "Related Question" below regarding alternator replacement.
where can i buy a side window for my 99 ford windstar lx
The ac system will have to be drained of freon and the pressure released. Then the compressor can be removed and replaced. Replace all o rings along the way as well.