I have a 98 Corvette, and tonight when I pulled it in the garage shut the motor off and remove the key the fan motor was still running. Can anyone tell me the problem? Please!

 

Welcome to the forum.
The first thing I would check would be the switch itself. Did you try all speeds on the blower? The second thing I would check would be to see if the ground circuit had been pulled to ground in the wiring harness someplace. Has there been any work done recently in that area?

 

No no work has been done and the switch doesn't do anything it is continuously on high

 

Other discussions about the topic mentioned the blower control module, and it sounds like it might be what's going on what do you think?

 

Could be. Older models used a relay on High and if yours does, then the relay could be stuck. But if there's a blower control module, then that might be it.