Symptom Chart

WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

ACCESSORY DRIVE SYMPTOM CHART

Condition	Possible Sources	Action
Accessory drive belt cracking (over 15 cracks in a rib over a distance of 100 mm [4.0 in])	Accessory drive belt	INSPECT the accessory drive belt. REFER to INSPECTION AND VERIFICATION in this section. INSTALL a new accessory drive belt as necessary.
Accessory drive belt chunking	Accessory drive belt	INSPECT the accessory drive belt. REFER to INSPECTION AND VERIFICATION in this section. INSTALL a new accessory drive belt as necessary.
Accessory drive belt noise, squeal, chirping or flutter	Defective/worn or incorrect accessory drive belt Misaligned pulley(s) Pulley runout Damaged or worn accessories Fluid contamination of accessory drive belt or pulleys	REFER to Component Tests, DRIVE BELT, NOISE/FLUTTER . REPAIR or INSTALL new parts as necessary.
Accessory drive belt noise, squeal, chirping or flutter	Damaged or worn accessory drive belt tensioner	REFER to Component Tests, BELT TENSIONER - MECHANICAL and SBELT TENSIONER - DYNAMICS . INSTALL a new accessory drive belt tensioner as necessary.
Premature accessory drive belt wear	Defective accessory drive belt Misaligned pulley(s) Pulley runout Damaged accessories Incorrectly installed drive belt Fluid contamination	REFER to Component Tests, DRIVE BELT NOISE/FLUTTER and INCORRECT DRIVE BELT INSTALLATION . REPAIR or INSTALL new parts as necessary.
Accessory drive belt does not hold proper tension	Accessory drive belt has excessive cracking or damage	INSPECT the drive belt. REFER to INSPECTION AND VERIFICATION . INSTALL a new drive belt as necessary.
	Drive belt tensioner worn or damaged	CHECK the drive belt tensioner for damage and correct operation. REFER to the Component Tests, BELT TENSIONER - MECHANICAL and BELT TENSIONER - DYNAMICS . INSTALL a new drive belt tensioner as necessary.
	Accessory drive component failure	CHECK the accessory drive components. INSTALL new components as necessary.
	Accessory drive belt idler pulley bearing failure	INSPECT the accessory drive belt idler pulley for freedom of rotation and damage. INSTALL a new accessory drive belt idler pulley as necessary.