Three problems related to engine exhaust system have been reported for the 2005 Ford Mustang. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Ford Mustang based on all problems reported for the 2005 Mustang.
A valve lock/cap failed on the number 5 piston and the rotary arm fell into the exhaust valve and destroyed the engine at only 56,000 miles.
One week after car purchased paint flaking off and car has blue smoke coming from exhaust at start up. Car has been painted since then 3 times and to date paint is flaking off and you should see all of the buffing scratches from the dealership(town & country Ford/bessemer, al) trying to correct their mistakes. I might add this is a roush Mustang. Car has been in 2 times for blue smoke and service department can't duplicate the problem(common statements made by Ford's service department). Ford motor company refuses to even send a representative out to look at the vehicle. To say the least they do not stand behind their products and we will never purchase another one. We are in the arbitration process at this time with this vehicle. I would not recommend a Ford to anyone. Read all about their problems online before you purchase. I wish I did.
Initial problems: 1. Pin strip on driver side was peeling off 2. A/c vent fell out of console 3. Convertible top got stuck in the down position. Stopped by closest dealer because I was on vacation and we pulled the top back up. Brought it to a local dealer for repairs and they said it was not covered under warranty because the entire convertible top frame was twisted. They stated this was because I most likely had driven while the top was half way up/down. After several weeks Ford engineers decided to cover the repairs for the top. Took the dealer five weeks to get all parts and replace the top. 4. Gas tank replaced because gas pumps would constantly cut off while refueling. 5. A/c makes popping noise every once in while. Current issues: 1. Noise in front end while turning at slow speeds 2. After car warms to driving temperature, there is a thumping noise heard in engine, very prominent in interior 3. Driver side exterior door handle sticks in the out position 4. Convertible top making a thud noise when raising and lowering top 5. Exhaust is making a popping noise when if engine is revved right after starting the car 6. Slight vibration/rattling noise coming from console while car idles 7. A/c making popping noise every once in while.