What would make the power steering unit (2005 gto) hard to use? Mine is stiff going around slow corners. The reservoir has fluid and there are no leaks that I can see from above and below. A friend said it's the cam I have that is affecting the way the pump is working. One fix is to go with electric but just wanted to hear some opinions. Has anybody experienced this after getting a cam that has a lope to it? Could that really be the reason? Thanks for any input.