Some Ford Five Hundred owners report experiencing issues when the check engine light is on, particularly shaking while driving uphill. This could indicate serious problems, such as issues with the emissions system, sensors, or catalytic converter. Additionally, vibrations during uphill driving may suggest driveline problems related to components like CV axles, CV joints, or driveshaft U-joints. If the shaking is accompanied by a flashing check engine light, it typically signals a more urgent issue that requires immediate attention. Owners are advised to have their vehicles professionally inspected to accurately diagnose the problem and prevent further damage or safety risks.

A significant vibration with moderate braking at highway speeds may develop on vehicles stored outdoors for 3 months or more. This condition may be due to corrosion on the brake rotors. Our technicians tell us that normal driving for about a week should eliminate this issue.