Symptom Chart: NVH
WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
| Condition | Possible Sources | Actions |
|---|---|---|
| Vibration when the brakes are applied | Brake disc(s)/drums(s) Suspension components |
GO to Pinpoint Test A |
| Brake vibration/shudder occurs when the brake pedal is released | Brake drag | REFER to Symptom Chart: Brake System . |
| Rattling noise | Caliper guide pins or guide pin bolts Missing or damaged anti-rattle clips or springs Loose brake disc shield Missing or damaged brake shoe hardware |
INSPECT the caliper guide pins and guide pin bolts. INSTALL new components as necessary. INSPECT the brake pads for missing clips or broken springs. INSTALL new components as necessary. TIGHTEN the brake disc shield bolts to specification. REFER to: Front Brake Disc Shield . REFER to: Front Brake Disc Shield - RS . REFER to: Rear Brake Disc Shield . REFER to: Rear Brake Disc Shield - RS . CHECK the brake shoes for missing or broken hardware. INSTALL new components as necessary. REFER to: Brake Shoes . |
| Squealing noise - occurs on first (morning) brake application | Brake pads/shoes | Acceptable condition. Caused by humidity and low brake pad temperature. |
| Squealing noise - a continuous squeal | Brake pads/shoes | INSPECT the brake pads or shoes. INSTALL new components as necessary. REFER to: Front Brake Pads . REFER to: Front Brake Pads - RS . REFER to: Rear Brake Pads . REFER to: Rear Brake Pads - RS . REFER to: Brake Shoes . |
| Squealing noise - an intermittent squeal | Brake pads/shoes | Acceptable condition. Caused by cold, heat, water, mud or snow. |
| Groaning noise - occurs at low speeds with brake lightly applied (creeping) | Brake pads/shoes | Acceptable condition. |
| Grinding/moaning noise - continuous | Brake pads/shoes Brake disc/drums |
INSPECT the brake pads, brake shoes, brake discs and attaching hardware for damage. VERIFY brake components are within specifications. REFER to: Front Brake Pads . REFER to: Front Brake Pads - RS . REFER to: Rear Brake Pads . REFER to: Rear Brake Pads - RS . REFER to: Brake Shoes . INSTALL new components as necessary. |