Working on a 2005 Odyssey -- when cold, the power steering pump is noisy, as if cavitating. After the car is run a short while, the noise goes away. Fluid level is correct, and since this car has been in the family since new, I can safely assume the fluid is Honda approved. I read on another site that power steering pumps will sometimes behave as I've described if the o-ring sealing the inlet line is bad. That advice was for power steering pumps in general (not specific to Hondas) so I thought I'd ask here if anyone is familiar with the problem?