Symptom Chart(s)

WARNING: This page is about a different car, the 2024 Ford Transit-350 HD, 2024 Ford Transit-350, 2024 Ford Transit-250, and 2024 Ford Transit-150. 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 .

Symptom Chart: NVH

Symptom Chart

Condition	Possible Sources	Actions
Driveline clunk - loud clunk when shifting from PARK or REVERSE to DRIVE	Damaged or worn driveshaft CV -joint and / or U-joint	INSPECT the driveshaft CV joint and/or U-joint for wear or damage. INSTALL a new driveshaft U-joint or driveshaft as necessary. REFER to: Driveshaft Universal Joint . REFER to: Rear Driveshaft .
	Driveshaft center bearing worn or damaged.	CHECK center bearing for isolator damage or tears. INSTALL a new rear driveshaft as necessary. REFER to: Rear Driveshaft .
Driveline clunk -- occurs as the vehicle starts to move forward following a stop	Worn driveshaft CV joint and / or U-joint with excessive play	INSPECT the driveshaft CV -joint and / or U-joint for a worn condition. INSTALL a new driveshaft U-joint or driveshaft if necessary. REFER to: Driveshaft Universal Joint . REFER to: Rear Driveshaft .
	Driveshaft center bearing worn or damaged.	CHECK center bearing for isolator damage or tears. INSTALL a new rear driveshaft as necessary. REFER to: Rear Driveshaft .
Buzz - buzzing noise is the same at cruise or coast/deceleration	Incorrect driveline angles	CHECK for correct driveline angles. REPAIR as necessary. REFER to: Driveshaft Angle Measurement .
Squeal - noise occurs at slow vehicle speeds	Driveshaft spline boot damaged and / or out of position rubbing on center bearing	CHECK for condition of rear and front driveshaft spline boot. REPLACE rear and front driveshaft as necessary. REFER to: Rear Driveshaft . REFER to: Front Driveshaft - LHD AWD .
Rumble or Boom - noise occurs at coast/deceleration, usually driveshaft speed-related and noticeable over a wide range of speeds	Driveshaft out of balance	CHECK the driveshaft for damage, missing weights or undercoating. CHECK the driveshaft balance. REFER to: Driveshaft Runout and Balancing . INSTALL a new driveshaft as necessary. REFER to: Rear Driveshaft .
	Center bearing worn or damaged.	CHECK center bearing for isolator damage or tears. INSTALL a new rear driveshaft as necessary. REFER to: Rear Driveshaft .
Grunting -- normally associated with a shudder experienced during acceleration from a complete stop	Driveshaft CV -joint and / or U-joint binding	INSPECT the driveshaft CV-joint and / or U-joint and coupling shaft for wear or damage. INSTALL a new rear driveshaft and driveshaft U-joint as necessary. REFER to: Rear Driveshaft . REFER to: Front Driveshaft - LHD AWD . REFER to: Driveshaft Universal Joint .
Driveline shudder - occurs during acceleration from a slow speed or stop	Driveline angles out of specification	CHECK for correct driveline angles. REFER to: Driveshaft Angle Measurement .
	Binding or damaged driveshaft CV -joint and/or U-joint	INSPECT the driveshaft CV-joint and / or U-joint and coupling shaft for wear or damage. INSTALL a new rear driveshaft and driveshaft U-joint as necessary. REFER to: Rear Driveshaft . REFER to: Front Driveshaft - LHD AWD . REFER to: Driveshaft Universal Joint .
Driveline vibration - occurs at cruising speeds	Worn or damaged driveshaft center bearing support	CHECK the insulator for damage or wear. ROTATE the driveshaft and CHECK for rough operation. INSTALL a new rear driveshaft as necessary. REFER to: Rear Driveshaft .
	Center bearing bolts not properly seated	REPLACE and TORQUE the center bearing bolts.
	Loose axle pinion flange bolts	INSPECT the axle pinion flange. TIGHTEN the pinion flange bolts to specification. REFER to: Rear Driveshaft .
	Excessive transmission (4x2) or transfer case (4x4) flange pilot stem runout	Measure output shaft pilot stem runout using a dial indicator while rotating the output flange in neutral. REFER to: Specifications .
	Driveshaft is out of balance	CHECK the driveshaft for damage, missing balance weights or undercoating. CHECK the driveshaft balance. Reindex rear driveshaft to axle pinion 180deg. (yellow dot opposite). REFER to: Driveshaft Runout and Balancing . CARRY OUT a driveline vibration test.
	Binding or damaged driveshaft CV -joint and / or U-joint	INSPECT the driveshaft CV -joint of rear and front driveshaft and U-joint of rear driveshaft for wear or damage. INSTALL a new rear driveshaft U-joint or rear driveshaft or front driveshaft as necessary. REFER to: Rear Driveshaft . REFER to: Front Driveshaft - LHD AWD . REFER to: Driveshaft Universal Joint .
	Excessive driveshaft runout	CARRY OUT a runout check. REFER to: Driveshaft Runout and Balancing .
	Driveline angles out of specification	CHECK for correct driveline angles. REPAIR as necessary. REFER to: Driveshaft Angle Measurement .