Common issue with these vans is the filter in the power steering resvoir gets clogged and prevents normal fluis flow in the system.
You can replace the resevoir to remedy this, or what I did as my van has some 92,000 miles was to gently put a long thin phillips screwdriver down the throat of the resevoir at 90 degree intervals and gently dislodged the filter to allow for normal fluid flow.
You may also need to add fluid to the proper level.
For me, this corrected the problem immediately, and that was about 3 months ago now.
Wednesday, December 23rd, 2009 AT 5:27 PM