Power Steering problem with 2002 Grand Caravan SportsModel

My 2002 Grand Caravan Sports model has 93000 miles on it. Recently I noticed that turning the steering wheel to the LEFT was difficult in cold mornings. But, turning to the right was always easy. The problem goes away once the van gets warmed up. I am thinking about changing the power-steering fluid. Am I right?

Thanks.



Para

does it make noise when cold too? It could be a clogged filter in bottom of ps fluid fill resevoir. Pump is starving for fluid therefore has nothing to help you push wheels.