Hi, I just let a shop change my power steering pump and rack. they care sounds much better, steers easier, but when I turn, the wheel doesn't come back to center. they said they did an alignment, but I am not sure. also, this may be pure coincidence but... I have a massive oil leak. is there any way that the shop broke something pertaining to the oil down there? Im so broke and I feel they are just short cutting me.