you need an owner's manual?
you may obtain one here...
https://www.fleet.ford.com/maintenan...ers%5Fmanuals/
Not all windstars have a block heater. I think that they are usually installed in the freeze out plug in the engine block.
This one is probably the easiest one to get to and would be where I would put a block heater.
__________________
BroncoJoe19
2006 Alt Fuel Jeep (electric)
'98 windstar 3.8L
'99 Crown Vic 4.6L
'90 Full Size Bronco 5.0L
I'm not a professional mechanic, take my suggestions with a grain of salt, or a cup of coffee

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