Join Date: Sep 2012
location: Skokie, IL (next to Chicago)
Thanked 1,931 Times in 1,377 Posts
OK, you say you don't "see any leaks", but are you in fact losing power steering fluid?
Air bubbles are normal if the power steering fluid level is within low/high levels. It is a pump, after all, and pushing that fluid around a non air-tight system will mean there will be a few bubbles. What you don't want is frothing. If you have a frothy mixture when you remove the little reservoir cap for a second or two to look inside while the car is running, then that means you are getting way too much air in there.
But the issue here is a groaning noise, is that correct? Only when turning left?
A new O-ring is under 2 bucks, and will take you about 5 minutes to swap. When is the last time you changed out your power steering fluid? If you did, did you use Honda PS fluid or which brand/type?