i moved my bronco yesterday, about ten feet and it cut off on me. it ran roughly the entire time. I then checked for a spark, which it had, and sprayed starter fluid in the throttle body but it still didnt crank. I then proceeded to pull a spark plug for visual inspection. The plug was covered in oil, problem found i hope. My question is what should i do now?? Is it a vaccuum thing or intake manifold gasket??