One problem related to engine exhaust system has been reported for the 2004 Ford Crown Victoria. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Ford Crown Victoria based on all problems reported for the 2004 Crown Victoria.
While driving I suddenly found it very hard to turn the steering to the right. Using considerable force I was able to make the turn - but only just. Investigation by myself later showed that the heat shield from the driver's side exhaust manifold had fallen off due to corrosion around the two 10mm bolts that hold it on. It had then fallen onto the steering shaft and must have wedged against something when I was trying to turn. It was still on top of the steering shaft when I opened the hood after driving a mile home (very carefully). Had someone been driving with less experience or strength than myself this failure could very easily have resulted in an accident as there was no warning at all.