Burning smell from under hood.

For the past month or so, there has been an unusual burning smell coming from under the hood after driving it. It now starts but will not stay running. Any ideas on what the problem may be so i can fix it myself. This is on a 98 DOHC ford taurus. Any suggestions greatly appreciated.

For the past month or so, there has been an unusual burning smell coming from under the hood after driving it. It now starts but will not stay running. Any ideas on what the problem may be so i can fix it myself. This is on a 98 DOHC ford taurus. Any suggestions greatly appreciated.
I am having the same problems...I have a 97 Ford Taurus...I will start up but will not stay started...Im very concerned over this...

did it smell like rubber or plastic cuz it could be a vacuum hose melted on something hot and now it has created a vacuum leak

It is the idle air control valve. I don't think it had anything to do with the burning smell though.