Three problems related to engine exhaust system have been reported for the 1999 Ford Mustang. The most recently reported issues are listed below.
Hearing a exhaust leak like noise and around the spark plug there is air coming out of the heads causing them to eventually blow out and I will be very upset if Ford don't replace it since it is happening to alot of cars!!!.
There was a slight ticking noise coming from engine bay that I thought was an exhaust leak. Eventually the spark plug blew out of the head stripping the top threads out of the aluminum head. In order to fix the car, I had to have a local shop helicoil the head to add threads to the head.
I have experienced a spark plug blowout in my 1999 Ford Mustang with 4. 6l v8. I have since read about the vulnerability of these engines to experience spark plug blowout. The first blowout was experienced prior to changing any spark plugs and therefore can not be deemed to be a cause of improper torquing, etc. A heli-coil was used to repair the spark plug blowout, only to have the spark plug blown out again at a later date. This time the cylinder heads were damaged and required replacement. The cylinder head replacement was a major inconvenience both in cost of repair, and in the severity of the malfunction. I am very disturbed to hear the number of complaints and number of other individuals who have experienced this same problem without any proper recognition or action by Ford. I am filing this complaint to draw more attention to this issue and perhaps get some federal action against Ford for this issue. I believe that owners like me should be compensated for the repairs done and the stress/inconvenience encountered due to this manufacturer defect.