My power steering is very hard to turn left and makes whining noise but turns right perfect, what is problem?
Power steering pump doesn't make sense because it's only tight turning left and not right. If I have the front end lifted off the ground it turns both ways perfectly fine, it's not until I lower the front and and put pressure on it that it gets tight. Truck has plenty of power steering fluid. 2004 Chevy Silverado 4WD.