Kia starts normally but when Iput in drive they becomes to failed

You need an auto-electrician to connect a code reader or a pro grade scan tool computer that can scan data in real time. It will tell what is happening when the car starts to fail.

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must be an internal gear problem take to a KIA dealer as they will probably know of a fault

Your problem is half normal actually. Pumping the brakes will build more pressure in the system and will make the pedal harder and the brakes will brake alot more, the brakes are designes this way. But if the brakes don't release after you let go of the pedal, that's not normal. If this is the case, there may be a few things that can be faulty, but i'd start by checking/replacing brake vacuum booster unit. If the unit is ok, then probably one of the calipers on the brakes are starting to jam due to rust and dirt, especially if you see the the rubber seals on the caliper pistons are damaged or missing.

Check for fault codes . You probably have a failing coil or faulty air ambient temp sensor or engine temp sensor faulty.

check if there is spark at the spark plug cables, it's either the coil or the camshaft sensor.

You have a failed transmission. You will need ti rebuilt.

Kia transmissions have become more complicated and parts such as the clutch, flywheel and torque converter can fail regardless of your driving habits. If your vehicle is beyond the warranty period I would still recommend your local Kia Dealer for repairs on this problem. A transmission problem is far to difficult to tackle for all but the most experienced mechanic.

How to diagnose an overheating KIA

maybe your fuel pump stop working or a blown fuse for the fuel pump or ignition coil. First checked for blown fuses