Power steering too heavy when stationary?

I have 2001 Cadillac DeVille Limousine. We changed the power steering servo pump, but we still struggle to turn the steering wheel when the car is stopped. It's easier to steer when I push the gas pedal....

Bio Diesel for newer cars?

I bought a Cadillac BLS 1.9 Wagon in January. £15,772 for an all singing all dancing car with Sat Nav bluetooth seemed like good value. I have now covered 20,000 miles with only a loose wire on a fog light...