2004 Kia sedona replaced power steering pump and belt even changed the rack but still hard to turn.gets hard then normal and back and forth . as you are turning . help.

Im assuming that you mean power steering fluid is leaking... top off the fluid, replace cap, and have a freind turn the steering wheel back and forth while you check the hoses and lines for leaking fluid.

try this trick ,put some engine oil around the top nut on the suspension leg look under the bonnet and you will see it ,then leave their and put some more on after it soaks through to teh bearing underneath ,cant guarentee it will work in your case as something else may be wrong but i have cured many a tight steering problem like this so now i do it everytime i service a vehicle

1. Remove the Power Steering belt.
2. Disconnect the power steering hoses from the power steering pump. Take caution as there may be some pressure.
3. Remove the bolts holding the Power Steering pump to the pump mount.
4. Install the new Power Steering pump.
5. Reconnect the power steering hoses.
6. Reconnect the Power Steering belt.
7. Top off with fluid.
8. Start up the vehicle.
9. Turn the wheel to the left.
10. Top off with fluid.
11. Turn the wheel all the way to the right.
12. Top off with fluid.
13. Repeat the last 4 steps until the fluid level doesn't change much, and is topped off.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

Some modern cars have an electrically driven pump to supply high pressure oil to operate the power steering. However, most cars have an oil pump for the steering which is turned by a belt from the crankshaft pulley. If the belt is loose or slipping, heavy steering will be the result, especially noticable at low speeds. Check belt for tightness, and check oil level is not low, possibly due to a leak?

Steve.

This is a known problem and has been increasingly noted by sedona owners. Steering shaft becomes corroded making vehicle steer hard. They say due to salt but if you live anywhere it snows you cant avoid it.

Model/Build Years: KIA / SEDONA 2002-2005
Service Bulletin Number : TSB-019 NHTSA Item Number : 10027724 Summary Description : KIA: INCREASED STEERING EFFORT. IN AREAS WHERE HEAVY ROAD SALT USE OCCURS, INCREASED STEERING EFFORT AND NOISE (FROM STEERING INTERMEDIATE SHAFT) FOR SOME SEDONA. *PE

This sounds like textbook steering rack failure. If the internal seals wear out the rack will leak fluid internally, causing the exact symptoms you're describing. These can be rebuilt, but it's hardly worth the effort. It's less headache and only slightly more expensive to replace it.

your vehicle has a known steering problem. Make / Models : Model/Build Years: KIA / SEDONA 2002-2005
Service Bulletin Number : TSB-019 NHTSA Item Number : 10027724 Summary Description : KIA: INCREASED STEERING EFFORT. IN AREAS WHERE HEAVY ROAD SALT USE OCCURS, INCREASED STEERING EFFORT AND NOISE (FROM STEERING INTERMEDIATE SHAFT) FOR SOME SEDONA. *PE

Defective pump

sounds like either the power steering pump or the power steering rack is failing.

The fan belt is slipping when you put the power steering under load. Get some belt dressing or replace the belt......