My trusty 1988 240 DL Wagon (167K)developed very heavy, kinda jerky steering over the course of about a week. It felt like my front tires were running almost flat. Visions of a Power Steering pump, or worse, a new Steering Rack were in my head...could my ball joints have crapped out??? Oh, what to do??? I turned to the Forum search, found an earlier post, and a number of responses (all in agreement for once!!) that said it was the U-Joints in the steering column, and they needed to be soaked with PB Blaster over and over again for a few days. I did that, and my wagon is CURED!! Talk about the cheap way out! The original post said the Volvo price for just the lower joint (the most likely culprit) is $200...ouch! I now plan to squirt Mobil 1 5-30 on them daily for the next week, and then weekly forever after that (or would a graphited oil like Lock Eze be better?). Now the rest of you guys...go out there and squirt oil on the upper (easy to see from the passenger side, under the brake booster), and the lower (easy to see from driver's side front, down behind the steering rack). This is another one of those little quirks out bricks have.