subaru outback 2008
How bad is an exhaust leak?
Any exhaust leak is bad, besides getting noxious fumes inside the vehicle it can have problems running properly due to O2 sensors getting to much unmetered air into the system, depending on where the leak is the catalysts can either run to hot or to cold causing another sensor misread downstream if equipped.
My car started rattling under the hood. A friend says it's the exhaust. Is this a major problem?