One problem related to loud engine noise has been reported for the 2004 Ford Focus. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Ford Focus based on all problems reported for the 2004 Focus.
The contact owns a 2004 Ford Focus. While driving approximately 55 mph, the engine warning indicator illuminated. In addition, when the brake pedal was depressed, the contact heard an abnormal noise. The failures occurred on several occasions. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failures. The approximate failure mileage was 116,000.