Yeah, sometimes when I first crank or I hit teh gas at a low RPM, I hear somethign that sounds like a woodpecker in my car, it has recently did it more foten and if I hit it hard as soon as it gets over 4k it does it until 5 1/2 K. Its gotta be my valves raddleing right? Why woudl this happen so early? Did I not change my oil enough or what? Help me out when any otehr possibel causes that would make me feel better?