Guys i really need some help here, im trying to get home on sunday and im having some major problomes. so basicly my battery was dieing, id come back to my car and it wouldnt start, id have to jump it and be on my way. this happened once or twice and so i went and got my battery tested. they said it was fine. I kept having problomes but now everything was dieing quicker. so I figured it must be the alternator. I replaced that and now im still having the same problome. I put in the new alternator. and at first the car would die unless id keep the engine at higher rpms ( 2000 or so) so i did that for awhile and then it would idle on its own. I drove it around the block once parked it, turned it off once it would start one more time then it died again. so I jumped it another time, let it idle for about 10 minutes, turned it off and nothing. Also when i had the hood open id hear a slight clicking sound, almost the kind a distributer spark would make if it was grounded but it would get intense ever minute or so, Im do for an oil change so that might just be a little engine noise but it sounds like its coming from under the intake manifold. It was also raining and i had a bit of water on my engine so i dont know if that was it. Please give me some help, any and all info you could give me would be appriciated so much. thanks in advance - Ben

also my car is a 2003 impreza TS

 

It seems like your car cannot generate Electrical Power high enough to charge the car, you might need to have someone to test its voltage. My dad's car had the same problem before, the battery was not charging at all when it was at idle.

 

...slipping belt that's driving the alt maybe?