What could cause my 2008 explorer to sound like a hose pops off and it loses power when driving through town when I let off of the accelerator and then try to accelerate.

I have a 2008 explorer with 80,000 miles. it runs great most of the time. Recently
though when I am driving through residential streets where i have to take my foot off of
the accelerator multiple times it will sound like the engine has thrown a hose or
something a very loud air noise comes from the engine and it loses power. You can
still accelerate, but it won't pick up speed very quickly, then it sounds like it shifts
gears and then runs fine again. I have had 3 mechanics look at it but since it doesn't
show a code, no one knows what it is. Please help if you have any ideas. Thanks!