I am hearing a hissing noise when I turn in either direction. This only seems to happen after the truck has been rinning for 10 to 15 minutes. Also I get a creaking noise when steering. Once again not all the time. What could this be. About a month ago I had the ball joints checked and everything was OK. Hwat could this be. My truck is a 1997 F-150 4X4

 

hissing is probably just the pump no big deal, just make sure the resevoir is full

creaking is probably just your torsions loading and unloading, remember the suspension on this truck is 11+ years old now