Getting ready for a long road trip and have one niggling little problem to deal with: For the last couple of years, after a day of touring, I find a lack of power steering at idle.....just when you're struggling hardest to get into that tight parking spot. I installed a new pump, but that didn't help. The rag joint looks good visually, including when the steering wheel is being turned back and forth. So what is the next area to investigate?