1995 ford taurus won't stop running after ignition switch is turned off?

1995 ford taurus won't stop running after ignition switch is turned off?

Sounds like the switch is misadjusted. Or defective.

HI does it run normal after you shut it off or does it chug-chug. If it runs normal then the switch is bad. If it chug-chug's the its doing something call dieseling caused by the following most likely. Idling to fast, running to rich, or over heating causing hot spots in the cylinders keeping the fuel ignited.