Réponse à : « Have a 2001 ford focus zx3 2.0l dohc idles rough, high idle misfires. »Check for vacuum leaks. Brake booster and pcv system. Also I would check the serpentine belt tensioner and alternator. Start eliminating the simple stuff first before throwing part darts. VACUUM LEAK
Réponse à : « instrument panel power issues on a 2005 ford focus »Blown fuse or failing alternator would be first place I would look. Last would be the instrument cluster itself.