I recently noticed that my truck will make a click sound after the ignition is turned off and the keys are out. It sounds exactly like the sound my turn signal makes but I have made sure the turn signal stock isnt engaged in either direction or anything like that. Any ideas on things i should check to find where this is coming from?
1991 F150 4.9 A/T 2WD

 

Almost all vehicles will make noises when turned off. Relays and parts like fuel systems are still taking care of things or parts are cooling and expanding or contracting. Mine makes plenty of noise but it should not be a cause for concern. You can always run a diagnostics test and see if anything turns up. You also hear the fuel pump working before you start the car. Sandy

 

A relay click I could understand but this is a consistent rhythmic turn signal click even if the truck hasn't been running. If I open the door and bump the ignition without the key in it I get the usual buzz and then the clicking starts, wiggle the turn signal stalk and sometimes itll go off and sometimes it comes right back

 

That is a much better description of your problem. Hopefully one of our experts on here can help. Sandy