My 1993 Aerostar is down.

[anton]

got smoke coming somewhere under the bottom near the oil filter I think, It's been down for some months. Got it started today,And found a hose loose . Don't know where it came from I think it is a vaccum hose.Then on top of that I put the heater on and it's blowing cold air .Think it's got ice in it. Need some advice.

 

[BrooklynBay]

It sounds like you have a vacuum leak. Post a picture of the hose with its location.

 

[FORDBOYpete]

Anton,
A loose filter/ faulty gasket on Oil filter will leak oil on Exhaust system causing smoke. Also leaky valve covers will result in smoke too.

Have you had a "backfire" when trying to start engine? They tend to blow vacuum lines off their fittings. Heater/ A-C plenum blend doors are Vacuum Actuated, a disconnected vacuum line will cause havoc, as Brooklyn Bay said.
CIAO
FBp