does anyone else have an air release noise after shut off?

I just changed the spark plugs and air filter, so I triple checked all my contact points w the air filter. Not too sure what would cause that kind of a noise otherwise.

Is this something I should be trying to trouble shoot? or is there something that just decompresses per usual?

thanks for the thoughts

 

Welcome to the forum

Do you have AC?
Could be pressure releasing inside the evaporator, not urgent issue but could mean time to get it serviced

Do the vents, panel, floor, and defrost, work normally?
They are vacuum operated
Could be a loose hose leaking vacuum, but you can only hear it after shutdown

 

Thanks!
yeah I do have AC, and the compressor is just about kaput so that would explain that. thanks!