Sorry, there's no TSB's on your specific issue.
Did you check the fluid level? Also, listen for any weird noises coming from the pump or the rack.
All intermittant problems are hard to track down, and I really couldn't give you anything definitive without doing a test drive.
If you find the problem and need instruction on removal/replacement procedures, write back and I'll walk you through it.
Wednesday, March 3rd, 2010 AT 7:29 PM