I replaced my starter back in september, my battery is pretty recent, about may of '09, and alternator and distributor are both pretty recent too.

But recently with in the past 2 weeks I have had a very hard time getting my car to fire up. When I turn the key, it will turn over like normal, but the longer I hold the key/the more times I try, the engine crank is slower and slower until it wont turn at all. And then when I get jumped off from another car, I only have to be hooked up to the other car for less than a minute and it will fire up like it was a brand new car.

I dont know what all it could be or if there is a way that I can check to see if Im grounding out somewhere and loosing a little power.