Symptom Chart: NVH

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)/ 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	INSPECT the caliper guide pins and guide pin bolts. Refer to: Brake System Inspection . INSTALL new components as necessary. INSPECT the brake pads for missing clips or broken springs. Refer to: Brake System Inspection . INSTALL new components as necessary. TIGHTEN the brake disc shield bolts to specification. Refer to: Front Brake Disc Shield . Refer to: Rear Brake Disc Shield .
Squealing noise - occurs on first (morning) brake application	Brake pads	Acceptable condition. Caused by humidity and low brake pad temperature.
Squealing noise - a continuous squeal	Brake pads	INSPECT the brake pads. INSTALL new components as necessary. Refer to: Front Brake Pads . Refer to: Rear Brake Pads .
Squealing noise - an intermittent squeal	Brake pads	Acceptable condition. Caused by cold, heat, water, mud or snow.
Groaning noise - occurs at low speeds with brake lightly applied (creeping)	Brake pads	Acceptable condition.
Grinding/moaning noise - continuous	Brake pads Brake disc	INSPECT the brake pads, brake discs and attaching hardware for damage. VERIFY brake components are within specifications. Refer to: Brake System Inspection . INSTALL new components as necessary.