Fluid bubbling in the power steering reservior when the engine is running

1. Do NOT start the engine until the system is fully bled, doing so may cause damage to the power steering components. Pump internals are metal to metal so any air in the system can cause metal to metal contact and resulting damage.
2. Raise the front wheels off the ground
3. Turn the steering wheel fully to the RIGHT
4. Fill the reservoir to the "full cold" level & leave the cap off. Use only XADO CHF or Honda PSF-S fluid. Do NOT use automatic transmission fluid as transmission fluid does not contain the same friction inhibitors/additives and tends to breakdown and overheat. The use of transmission fluid will VOID the warranty
5. With an assistant checking the fluid level, turn the steering wheel slowly and smoothly lock to lock until the level drops in the reservoir. If the fluid level does not drop no fluid has moved through the system, this indicates an air bubble in the reservoir or pump. Until this bubble passes no fluid will circulate through the system. ? On systems with coolers you may need to cycle in excess of 40 times ? Do NOT turn the steering wheel fast as this will cause the fluid to overflow the reservoir, trapped air may cause the fluid to overflow. Thoroughly clean any spilled fluid so you can check later for any leaks
6. Check the fluid constantly to ensure proper level and that no bubbles exist. ? If you see any signs of bubbles recheck all hose connections then repeat the steps above. ? The fluid level should be steady
7. Disable the engine from starting ? Crank the engine several revolutions, if the fluid level drops there is compressed air trapped in the system, repeat the above steps until the fluid level remains stable. ? If the fluid foams while cranking wait at least 10 minutes or more until dispersed air has time to accumulate and purge through the reservoir.
8. Continue to repeat the steps above until the fluid level remains constant and no air bubbles are visible.
9. Now start the engine and check that the fluid remains at level and stable
10. Reinstall the reservoir cap
11. Return wheels to centre and lower wheels to the ground
12. Run the engine for two minutes and turn steering wheel in both directions
13. Do NOT hold the steering wheel against the stops
14. Verify the following conditions ? The steering is smooth ? Noiseless operation ? Proper fluid level ? No leaks ? Proper fluid condition ? No bubbles, foaming or fluid discolouration
15. If all of the above conditions are satisfied the bleeding procedure is complete
16. If any problem exists then turn off the engine and see special conditions below Special Conditions If you experience any of the conditions listed below then there is still air in the system. ? Foam or bubbles in the fluid ? Power steering fluid should not rise in the reservoir when the engine is turned off, if this occurs there is air trapped in the system ? Be aware of any periodic bubbles that could indicate a loose connection, leaky o-ring or a bad flare seat in either the pressure or return hose ? Discoloured fluid (milky, opaque or light tan colour) If you have any questions regarding this procedure please contact us before you install the replacement power steering pump that you have purchased from us, we will be happy to help you.

Here's a link on how to replace power steering reservoir.

there is a belt on the front of the engine that drives the various items like alternator, water pump, air conditioner and power steering pump-the power steering pump is the only accessory that has a reservior with a cap on it-look for it and turn the cap counter clockwise, it has a small dipstick on it. fill the reservior to the full level using the dipstick.

Sounds like the reservoir is overfilled. Take a turkey baster and siphon some out so that the level is at proper level. Then with engine running, rotate steering wheel slowly from one end to the other a few times. This will bleed any air bubbles that might be in the system.

With the vehicle off and front wheels off the ground do the following:
fill the reservior to mark on dipstick turn steering wheel lock to lock 20 times slowly each side (try to maintain fluid level) check fluid and fill if necessary start vehicle check fluid and fill if necessary turn steering wheel lock to lock 20 times slowly each side (maintain fluid level) shut vehicle off check fluid level if bubble exist in fluid (creamy color), wait five minutes and repeat from "start vehcle" (i.e. check fluid... turn wheel lock to lock 20x, etc...) repeat till bubbles are gone

If you have foam or bubbles in the tank its a sign of air in the system (airation). Air often enters the system when hoses or lines are replaced or disconnected. Its usually accompanied by whining of the pump when turning or parking. Often times this can be eleminated by removing the cap and turning the cars steering wheel at a moderate speed from full left to full right. Repeat as needed until problem is gone.

that is your brake fluid reservior. if you have fluid and no brake noise you may have a faulty mastercylinder. the first thing i would check is to make sure the vaccum hose to the brake booster is connected to the brakebooster and to the rear of the engine (since you did not know where your brake fluid reservior was the master cylinder is the meatal part that holds the reservior and the brake booster is the big round bubble that the master cylinder is bolted to) hope this helps you out.

In the power steering reservior. It should have a cap and be either opaque (the cap will have a dipstick inside) or translucent (you'll be able to see the level through the reservior). It'll be on the serpentine system. You can also find it by finding a metal hose that runs into the bottom of the reservior and connects to the steering system. Hope this all helps.

This is actually normal. Your talking about having the cap off with the vehicle running while you look in the reservoir that you pour the fluid into. Correct?

The power steering fluid will aerate (churn and make bubbles) if the power steering fluid is overfull or underfilled.

If the steering is making a binding sensation, causing excess motor drag, then it's probably low.

Just go to auto parts store and buy their recommended fluid. It's about $3/quart usually. Some auto makers require very specific fluid for their cars, but for a Nissan, it should be somewhat standard.

There should be a dipstick that is marked with the proper fluid level on your power steering pump. It'll be marked HOT and COLD, which of course corresponds with when you're checking the fluid. If you haven't driven the car and it's morning time, check the level with COLD. If the car has been driven and is warmed up, then check it against HOT.