Hey guys, just this morning i went to start my car but it didnt crank. The second time it cranked but i felt like something was stuck. Third try the car turns on with out a problem. Everything seemed fine but when im driving around 1.5k rpm-2.5k rpm in any gear and i give it a little bit more gas the car seems to lose power and shake a bit. It is similiar to the feeling where you're about to stall. Above 3k rpm though everything seems ok. When i was at the stop light in neutral, reving the engine up around 1.5-2.5k rpm i notice a bit of shaking. Does anyone know what might be wrong, something loose maybe? or even time for a major tune up? the car is currently at 130k miles. 
