Run a compression test to verify the condition of the engine.
Have the computer scanned for trouble codes. The problem may be a bad Throttle Position Sensor (TPS) or Idle Control Valve (ICV).
leaking intake gaskets...
the 96 fordwindstar sucks
It could be a dirty air filter or a dirty throttle body.
NAPA and Precision Tune and Auto Zone have a free analyzer check. Use it.
Throttle linkage could be in a bind or TPS is defective. (throttle Position sensor)
no
The transmission fluid filter could be clogged. There could also be an electronic issue, run the test codes on the vehicle computer to see if a problem is shown.
Get the codes read. Auto Zone will check your codes for FREE.
Fuse ( # 17 ) is a 20 amp fuse for the cigarette lighter and Data Link Connector on a 2001 Ford Ranger if there is no power
A good chance its the Idle Control Valve
mine is doin the same thing