Symptom Chart: NVH

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to ENGINE CONTROLS - DIAGNOSTIC METHODS (EXCEPT DIESEL & HYBRID) for information regarding Ford-specific diagnostic practices.

Condition	Possible Sources	Actions
Vibration when the brakes are applied	Brake disc(s) Suspension components	REFER to Diagnostic Routine A : Vibration When Brakes Are Applied.
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	CHECK the caliper guide pins and guide pin bolts. REFER to Brake System Inspection . CHECK the brake pads for missing clips or broken springs. INSTALL new components as necessary. REFER to BRAKE PADS - FRONT , or For the rear brake pads, REFER to BRAKE PADS - REAR . TIGHTEN the brake disc shield bolts to specification. For Front disc brakes, REFER to TORQUE SPECIFICATIONS - FRONT , or For Rear disc brakes, REFER to TORQUE SPECIFICATIONS - REAR .
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. REFER to Brake System Inspection .
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 .