2005 maniner
 

hello all.we have a 2005 maniner with a v6.ever since it was in a accident,the power steering has been acting weird.it steers fine while driving but when u go to park in a parking spot,the steering is really hard to steer.i figured it was the power steering pump,so replaced that.no luck,still doing it.been trying to find something by doing a search and no luck.i was told might be the steering rack,but hoping it aint that.can somebody else me on this issue.i was thinking also it might be the pressure switch.so any help would be great so i know what way to go.thanks in advance.