Symptom Chart - Brake Noise/Vibration

WARNING: This page is about a different car, the 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, and 2003 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART - BRAKE NOISE/VIBRATION

Condition	Possible Sources	Action
Rattling noise	Caliper mounting bolts loose.	CHECK the caliper bolts. TIGHTEN to specifications. REFER to DISC - EXCURSION, F250-F550 SUPER DUTY PICKUP for the front and rear disc brake.
	Damaged or worn caliper pins or retainers.	CHECK the caliper pins and retainers for lubrication and correct fit. LUBRICATE or INSTALL new components as necessary. REFER to DISC - EXCURSION, F250-F550 SUPER DUTY PICKUP for the front and rear disc brake.
	Missing or damaged anti-rattle clips or springs.	CHECK the brake pads for missing clips or broken springs. INSTALL new components as necessary. REFER to DISC - EXCURSION, F250-F550 SUPER DUTY PICKUP for the front and rear disc brake.
	Loose brake disc shield.	TIGHTEN the brake disc shield bolts to specification. REFER to DISC - EXCURSION, F250-F550 SUPER DUTY PICKUP .
Clicking noise - with brakes applied with ABS brakes	ABS hydraulic control unit.	Acceptable condition.
Squealing noise - occurs on first (morning) brake application	Disc brake pads.	Acceptable condition. Caused by humidity and low disc brake pad temperature.
Squealing noise - a continuous squeal	Disc brake pads or linings worn below minimum thickness.	INSTALL new disc brake pads. REFER to DISC - EXCURSION, F250-F550 SUPER DUTY PICKUP for the front and rear disc brake.
Squealing noise - an intermittent squeal brought on by cold, heat, water, mud or snow	Disc brake pad.	Acceptable condition.
Groaning noise - occurs at low speeds with brake lightly applied (creeping)	Disc brake pads.	Acceptable condition.
Grinding noise - continuous	Disc brake pads or linings worn below minimum thickness.	INSPECT the disc brake pads, brake discs/drums and attaching hardware for damage. REPAIR or INSTALL new components as necessary. REFER to DISC - EXCURSION, F250-F550 SUPER DUTY PICKUP for the front and rear disc brake.
Moaning noise	Brake linings contaminated with grease or oil.	INSPECT the brake pads and shoes for contamination. REPAIR or INSTALL new components as necessary.
Brake vibration/shudder - occurs when brakes are applied	Uneven disc or drum wear. Uneven disc brake pad or lining transfer. Suspension components.	GO to PINPOINT TEST A: BRAKE VIBRATION/SHUDDER .
Brake vibration/shudder - occurs when the brake pedal is released	Brake drag.	INSPECT the disc brake pads or linings for premature wear. REPAIR or INSTALL a new caliper as necessary. REFER to DISC - EXCURSION, F250-F550 SUPER DUTY PICKUP for the front and rear disc brake.