Air compressor like sound after sitting overnight

2016 trd or dcsb

I parked the truck in my garage last night and when I came back in the garage this am I heard a faint air compressor like sound coming from underneath the truck near the gas tank. I hit the start button twice to turn the accessories and heard the louder fuel pump sound activate. I pressed again to shut down the accessories etc. and the faint compressor like sound was gone.

Just putting this out there in case anyone else experiences this.

First Toyota for me and I really do like the truck especially after the trans tsb.

 

Has to do with emissions probably. Don't pay it any attention

 

It's cooing with delight, waiting for you to do "the nasty" to it!

 

Check the sticky's...

https://www.tacomaworld.com/threads/tips-and-tricks-on-the-2016-tacoma.411911/#post-11639094

#4 under Things that are normal but concern owners...

 

Normal

 

Damn. Thanks guys!