Hey guys just wondering if anyone has noticed their power steering fluid reservoir bubbling before? i just got a g37 and noticed it was doing this. any suggestions are appreciated!
TIA!

 

Yes I believe this is common.i am running synthetic fluid plus a cooler. Before that I didn't have issues.

 

is the cooler aftermarket? Ive never heard of a power steering fluid cooler before. I was almost thinking there was a leak in the system somewhere but the fluid in my reservoir is still near the max line?

 

No leak it's normal. Yea my cooler is aftermarket

 

Usually bubbling indicates air in the line. Have you tried bleeding it or having it bled? Run the car with the cap off the PS reservoir and crank the wheel all the way to one side, wait like 5 seconds, crank it back ALL the way to the other side. wait 5 seconds. Do this like 5 or more times and see if it improves at all. If not, double and triple check to make sure you have no leaks anywhere in your lines or your rack (even into the dust boots by the tie rods). Your reservoir should not be bubbling