Diagnosis And Testing - Propeller Shaft: Vibration

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.

Tires that are out-of-round, or wheels that are unbalanced, will cause a low frequency vibration.

Brake drums/rotors that are unbalanced will cause a harsh, low frequency vibration.

Driveline vibration can also result from loose or damaged engine mounts.

Propeller shaft vibration increases as the vehicle speed is increased. A vibration that occurs within a specific speed range is not usually caused by a propeller shaft being unbalanced. Defective universal/CV joints, or an incorrect propeller shaft angle, are usually the cause of such a vibration.

DRIVELINE VIBRATION

Drive Condition	Possible Cause	Correction
Propeller Shaft Noise	1) Undercoating or other foreign material on shaft.	1) Clean exterior of shaft and wash with solvent.
	2) Loose flange bolts.	2) Install new bolts and tighten to proper torque. Refer to TORQUE SPECIFICATIONS .
	3) Loose or bent flange or excessive runout.	3) Install new flange.
	4) Incorrect driveline angularity.	4) Measure and correct driveline angles.
	5) Worn U-joint/CV bearings.	5) Install new propeller shaft.
	6) Propeller shaft damaged or out of balance.	6) Install new propeller shaft.
	7) Broken rear spring.	7) Install new rear spring.
	8) Excessive runout or unbalanced condition.	8) Re-index propeller shaft, test, and evaluate.
	9) Excessive drive pinion gear shaft runout.	9) Re-index propeller shaft and evaluate.
	10) Excessive axle flange deflection.	10) Inspect and replace flange if necessary.
	12) Excessive transfer case runout.	12) Inspect and repair as necessary.
Universal Joint /CV Noise	1) Loose clamping bolts.	1) Install new bolts and tighten to proper torque. Refer to TORQUE SPECIFICATIONS .