Weird belt like squeal from truck

[Sarah Duncan]

I have a 2012 5.3 Chevy Silverado 1500 2wd

we checked my pulleys and my belt. Very irregular, usually after a sharp turn (rarely from a stop going straight) it’s a squeal that kinda sounds like a belt but not as high pitch. It doesn’t happen every time. But after a turn when I straighten out it’ll start, then when I let go of the petal it’ll go away and if I step back on it’s gone. 

[sefiroxx]

Power steering pump? Check fluid.