I'm noticing some pulsing in the steering I can't quite chase down. It's very light, but it is there.
I'm also noticing a rough idle that seems to be associated with it, as if there's just a little extra load being placed on the steering system.
I went ahead and replaced the power steering pump and belt (pump was original, and it's an 89!).
I'm going to check tire pressure again, but that wouldn't cause the idle problem, so I'm betting against that. I'm also going to check belt tension again - but my last check showed the appropriate 1/4 inch play in the belt, so I'll be surprised if it is that.
Any ideas what else it could be?
89 YJ 2.5L 5-Spd