Pontiac Repair: Really bad noises, pontiac bonneville sse, crank pulley

Question
I have a pontiac bonneville sse . when i start the car it really bad noises if i give it some gas the noise gets ten times louder, i also have oil come oout of the throttle body.  

Answer
Hi, the noise could be the crank pulley the rubber in the pulley will come loose and make a noise, the valves will make a noise from the like of oil, the rods bearing will make a noise from the like of oil or wear. a timing chain can make a noise if it gets loose from wear. the oil in the throttle body can come from backpressure is from the pcv valve is clogged.