One problem related to brake whistling noise has been reported for the 2005 Ford Focus. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Ford Focus based on all problems reported for the 2005 Focus.
1. When applying the brakes there was a whistling noise coming from the area of the brake pedal. While stopped with pressure applied to the brake pedal, the pedal continued to depress. The car still was able to stop. The car was taken to the dealer the next day for service. The dealer replaced the abs control module, part number 5s4z-2m110-b modulator 165686. I have the defective part.