When I first start the car in the morn. it is fine full range with one finger! After about 4 mins. it will get tight I mean VERY TIGHT. Like turning the wheel with the engine off! If I put the vehicle in (N) or leave in (P) and give it some gas its works again. It also works fine while driving untill I get off the gas. The pump dont whine or spit fluid. I've changed the belt, tentioner, and drained the fluid out and added new fliud. The fluid change worked for about 5 miles then it was back to it old self. Can anyone help me out! I luv my Lac and want her fixed