Engine Performance problem
1990 Ford Aerostar 6 cyl Two Wheel Drive Automatic 200000 miles
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I have a 1990 Ford Aerostar that runs rough at idle. When driving it seems to run ok.
Also, I have a problem with the transmission. The overdrive does not seem to be working. I can put it into overdrive but it will not shift into it.
In addition the heaters do not work correctly, I do not get any heat at all from them.
If I was to use a code scanner would it tell me what these problems are?