Wondering if anyone can give some help and or suggestions..lol. The other day the car was driving fine. Suddenly got a loud hmming sound, pulled over and checked it out. It was comming from underneath the car about midway and the sound of escaping air. Orginally I was angry, because I figured my fuel pump was going and that i got a hole in one of the tires. Got home and parked her. drove the next 3 days everything working well with no hmming sound or the sound of escaping air and no flat tire. Am I correct in thinking my fuel pump is going or is iot something else completely ?