Steering servo makes hard rt turn without turning steering wheel. batteries are fully charged and all connections appear secure. can temporarily eliminate prob by turning transmitter off/on.

Make sure the car battery is fully charged. Make sure your remote key has a good battery, too.
Place the remote in the ignition and watch if the red light inside the remote will blink when communicating with the car. The ignition key should be able to turn and the steering wheel should unlock. Then you can crank and start the car.

cv axle may need to be replaced

Hello! There are power steering fluid in/out hoses but no vacuum lines...It sounds as if the pump needs to be bled of air or the belt is loose...Belt should move about 1/2 to 3/4"...Bleeding is as follows...
Guru...saailer

ImportantPower steering fluid level must be maintained throughout bleed procedure.

1. Fill pump reservoir with fluid to minimum system level, FULL COLD level, or middle of hash mark on cap stick fluid level indicator.
ImportantWith hydro-boost only, the oil level will appear falsely high if the hydro-boost accumulator is not fully charged. Do not apply the brake pedal with the engine OFF. This will discharge the hydro-boost accumulator.

2. If equipped with hydro-boost, fully charge the hydro-boost accumulator using the following procedure:
2.1. Start the engine.2.2. Firmly apply the brake pedal 10-15 times.2.3. Turn the engine OFF.
3. Raise the vehicle until the front wheels are off the ground. Refer to Lifting and Jacking the Vehicle in General Information.
4. Key on engine OFF, turn the steering wheel from stop to stop 12 times.
Vehicles equipped with hydro-boost systems or longer length power steering hoses may require turns up to 15 to 20 stop to stops.

5. Verify power steering fluid level per operating specification. Refer to Checking and Adding Power Steering Fluid .
6. Start the engine. Rotate steering wheel from left to right. Check for sign of cavitation or fluid aeration (pump noise/whining).
7. Verify the fluid level. Repeat the bleed procedure if necessary.

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Yes, your brakes are boosted by the power steering pump rather than by vacuum. I don't think it's air in the system. More likely your pump has failed, but you can try bleeding the pump. Here is a procedure from autozone.com:

Observe the following:
Use clean, new power steering fluid type only Hoses touching the frame, body or engine may cause system noise. Verify that the hoses do not touch any other part of the vehicle. Loose connections may not leak, but could allow air into the steering system. Verify that all hose connections are tight.


NOTE Power steering fluid level must be maintained throughout bleed procedure.

1. Fill pump reservoir with fluid to minimum system level, FULL COLD level, or middle of hash mark on cap stick fluid level indicator.
   NOTE With hydro-boost only, the oil level will appear falsely high if the hydro-boost accumulator is not fully charged. Do not apply the brake pedal with the engine OFF . This will discharge the hydro-boost accumulator.
   
2. If equipped with hydro-boost, fully charge the hydro-boost accumulator using the following procedure:
   1. Start the engine.
   2. Firmly apply the brake pedal 10-15 times.
   3. Turn the engine OFF
   
   
3. Raise the vehicle until the front wheels are off the ground.
4. With key in the ON position and the engine OFF , turn the steering wheel from stop to stop 12 times. Vehicles equipped with hydro-boost systems or longer length power steering hoses may require turns up to 15 to 20 stop to stops.
5. Verify power steering fluid level per operating specification.
6. Start the engine. Rotate steering wheel from left to right. Check for sign of cavitation or fluid aeration (pump noise/whining).
7. Verify the fluid level. Repeat the bleed procedure if necessary.

Observe the following:



Use clean, new power steering fluid type only Hoses touching the frame, body or engine may cause system noise. Verify that the hoses do not touch any other part of the vehicle. Loose connections may not leak, but could allow air into the steering system. Verify that all hose connections are tight.
NOTE Power steering fluid level must be maintained throughout bleed procedure.

1. Fill pump reservoir with fluid to minimum system level, FULL COLD level, or middle of hash mark on cap stick fluid level indicator.
   NOTE With hydro-boost only, the oil level will appear falsely high if the hydro-boost accumulator is not fully charged. Do not apply the brake pedal with the engine OFF . This will discharge the hydro-boost accumulator.
   
2. If equipped with hydro-boost, fully charge the hydro-boost accumulator using the following procedure:
   1. Start the engine.
   2. Firmly apply the brake pedal 10-15 times.
   3. Turn the engine OFF
   
   
3. Raise the vehicle until the front wheels are off the ground.
4. With key in the ON position and the engine OFF , turn the steering wheel from stop to stop 12 times. Vehicles equipped with hydro-boost systems or longer length power steering hoses may require turns up to 15 to 20 stop to stops.
5. Verify power steering fluid level per operating specification.
6. Start the engine. Rotate steering wheel from left to right. Check for sign of cavitation or fluid aeration (pump noise/whining).
7. Verify the fluid level. Repeat the bleed procedure if necessary.

Watch what clinks?
You should see the vacuum servo move the linkage. The servo could have a leak. You can connect your own hose to the servo temporarily, and simply **** on it, then plug it with your tongue. After about 15 seconds, if it holds that vacuum, then no leaks.
The linkage could also be binding. Transfer case could also be binding. Try helping the servo by hand. Careful when under the vehicle. Chock wheels and make sure in neutral while underneath.

It should not require a charge at all but if it is chargeable please make sure the steering wheel is fully charge and all connects & wires between the steering wheel and console are connected properly.

Make sure that no debris (stones, sticks, etc.) have gotten jammed in tie rods or steering servo. Check to see if servo is trying to move, you should be able to hear it when you turn the wheel on the transmitter. If the servo is not working at all, it could be faulty, came disconnected at the receiver, or receiver pack has too low of voltage. If the servo is trying to turn, check the servo saver to make sure it has not loosened or has been damaged.

Check the servo saver to make sure it is not loose. You should be able to hear the servo move or try to move. If it does not make any noise when you turn the wheel on the controller open the receiver box and make sure that the steering servo has not come unplugged from the receiver. If these things check out the servo could possibly be bad. They can get damaged if they get wet or are hit hard enough.

You may have something too tight on your steering linkages, or you may just want to upgrade to a better servo. My Revo's servos are all metal gear and I have never had a problem with them. Receiver batteries on my truck were weak and the tires were hard to turn as well, so check your batteries

CHECK THE CUT OF THE KEY. IF WORN REPLACE KEY WITH FRESH CUT. MAKE SURE BATTERY FULLY CHARGED