When I turn the key to start car it looses all power when had power before.
What exactly do you mean by “loses power”? If you mean nothing happens when you turn the key It sounds like the battery is either not charging (alternator) or unable to hold a charge (battery). Will it start with a jump? Have the alternator and battery tested.
@Bubbles3 … You are going to have to explain your problem a lot better than the 16 words you posted if you want help.
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