Got a 2000 F350, owned it since day one. But for the last couple of weeks,now it makes a beeping noise for about a minute after start up. No check engine lights, still runs great. Anybody heard of this?

 

Is it the seat belt reminder? Try not using your belt and see if its the same beep. Could be the indicator light is dead. Could also be the gps tracking device the cops put on your rig without a warrant is not set up properly.

Just spitballin.

 

If it is 5 beeps in a row it is a warning telling you that your airbag light is burned out. When you turn your key on, do you see the airbag light illuminate?