Power steering hard to turn - 2007 Pontiac G6

Didn't I answer this yesterday?
Question edited for clarity. Please always include model. Some models have known issues!

Sometimes after a power steering pump is installed, reduced pressure inside the hydraulic lines will build, which can create the symptoms you're experiencing. In other cases, low power steering fluid levels can cause this to occur, as can air bubbles trapped in the hydraulic lines.
Jan 3, 2018

Hard to turn steering wheel after power steering pump replaced

Videos as well

https://www.google.com/search?q=hard+steering+after+changing+steering+pump

..

Possible causes for a stiff steering wheel are a loose or damaged power steering belt, low power steeringfluid levels, a damaged or leaking power steering rack or a broken power steering pump.

What can cause a steering wheel to be hard to turn? ' Reference.com

https://www.reference.com/.../can-cause-steering-wheel-hard-turn-8b7a03d931c5d8cd steering wheel is hard to turn Google Search

Um... the video didn't demonstrate anything, only showed the steering wheel and the key.

If the engine is running, the tires aren't jammed against solid objects, there's no noise from the pump, the belt is tight, the power steering reservoir is full of fluid, and the steering wheel is still very hard to turn... then I suspect that the power steering pump has simply worn out badly and needs to be replaced.

Engine running ask someone to turn steering wheel for you . Look for power steering hose move like there is pressure. and noise from power steering pump . if not change power steering pump
You don't really need power assistance when moving on the road ... where you need it more specially in parking or not really moving
hope it helps

Take the power steering fluid cap off and see if fluid is circulating if it is the pump is fine. Most probable cause is steering rack is defective

check power steering fluid level, check for loose power steering drive belt, if this are ok there could be problem with power steering pump.

I would change the belt first. Power steering is required for all turning but does get a little more usage during hard turns. You will want to check the fluid levels of the power steering pump as well.

YOU HAVE AIR IN THE POWER STEERING SYSTEM.YOU NEED TO BLEED POWER STEERING PUMP FIRST BEFORE DRIVING VECHICLE.CHECK POWER STEERING FLUID LEVEL ADD MORE POWER STEERING UNTIL REACH FULL COLD MARK..RAISE VECHICLE FRONT WHEELS OFF THE GROUND.START ENGINE LET IT IDLE WHILE TURNING STEERING WHEEL LEFT TO RIGHT NON STOP DONT LOCK OR STOP STEERING WHEEL KEEP TURNING IT SEVERAL TIMES CHECK POWER STEERING FLUID IF LOW ADD UNTIL YOU GET COLD MARK ON DIP STICK DONT OVER FILL POWER STEERING PUMP BLOW A SEAL.IF POWER STEERING FLUID LOOK TAN COLOR SYSTEM FULL OF AIR.TURN OFF IGNITION LET CAR SET FOR A WHILE CHECK FLUID LEVEL.IF STEERING WHEEL FEEL STIFF HARD TURNING DONT DRIVE CAR UNTIL YOU HAVE NORMAL STEERING.IF STILL HAVE AIR IN SYSTEM BLEED SYSTEM UNTIL AIR IS OUT.

If the pump fluid level full?

Hi,
Intermittent hard power steering, at the begining of the turn of the steering wheel, once disturbed past the hard part, works normal.
Had fluid change, I notice a sensor, on the control block tower of the rack, is this at fault ? thanks buckleyeng.