An exhaust leak may occur anywhere along the system, which means the symptoms vary. Noise is commonly the first sign of a problem. A hole in the exhaust causes a loud noise when driving. Acceleration is particularly noisier. Other possible unusual sounds may include buzzing, hissing, popping, puffing, or ticking heard outside of the vehicle. The noise increases when revving the engine.
Air or gas escaping through a crack or a hole may create vibrations in the metal. The fuel economy might suffer if the leak does not affect the oxygen sensor, which causes the system to believe more fuel is needed. Smelling exhaust while in the vehicle means the problem lies under the hood. The problem requires immediate attention to prevent asphyxiation.
When attempting to locate the leak, look for black spots from escaping carbon deposits. A hole or crack in the metal is another sure indication. Minor problems are easily remedied by one of our professionals here at Jim Vreeland Ford in Buellton, CA.