Symptom Related Diagnostic Procedures

Noise is at constant tone over a narrow vehicle speed range. Usually heard on light drive and coast conditions

Possible Source(s):
^ Rear drive differential.
^ Transfercase.
^ Transaxle.

Action(s) to take:
^ For additional information, refer to Noise, Vibration and Harshness.

Noise is the same on drive or coast

Possible Source(s):
^ Road.
^ Wheel bearing.

Action(s) to take:
^ Normal conditions.
^ CHECK and INSTALL a new wheel bearing as necessary.

Possible Source(s):
^ Worn or damaged driveshaft joint.

Action(s) to take:
^ INSTALL new components as necessary.

Possible Source(s):
^ Driveshaft center bearing.

Action(s) to take:
^ INSTALL new components as necessary.

Noise is produced with the vehicle standing and driving

Possible Source(s):
^ Engine

Action(s) to take:
^ For additional information, refer to Engine.

Possible Source(s):
^ Transmission

Action(s) to take:
^ For additional information, refer to Automatic Transaxle/Transmission and Manual Transaxle/Transmission.

Noise is more pronounced while turning

Possible Source(s):
^ Differential side gears and pinion gears.

Action(s) to take:
^ For additional information, refer to Rear Drive Axle/Differential and Transfer Case.

Loud Clunk in the Driveline When Shifting from Reverse to Forward

Possible Source(s):
^ Engine idle speed set too high.
^ Engine mount.

Action(s) to take:
^ CHECK and adjust as necessary.
^ INSPECT and INSTALL new engine mounts as necessary.

Possible Source(s):
^ Transmission Mount.

Action(s) to take:
^ INSPECT and INSTALL new transmission mounts as necessary.

Possible Source(s):
^ Transmission.

Action(s) to take:
^ For additional information refer to Automatic Transaxle/Transmission and Manual Transaxle/Transmission.

Possible Source(s):
^ Suspension components.

Action(s) to take:
^ INSPECT and INSTALL new suspension components as necessary.

Possible Source(s):
^ Backlash in the driveline.

Action(s) to take:
^ INSTALL new components as necessary.

Clicking, Popping, or Grinding Noises

Possible Source(s):
^ Inadequate or contaminated lubrication in the axle shaft Constant Velocity (CV) joint.
^ Another component contacting the axle shaft.
^ Wheel bearings, brakes or suspension components.

Action(s) to take:
^ INSPECT, CLEAN and LUBRICATE with new grease as necessary.
^ INSPECT and REPAIR as necessary.
^ INSPECT and INSTALL new components as necessary.

Vibration at Highway Speeds

Possible Source(s):
^ Out-of-balance wheels or tires.

Action(s) to take:
^ INSTALL new tire(s) as necessary.

Possible Source(s):
^ Driveline out of balance/misalignment.

Action(s) to take:
^ For additional information, refer to PDU.

Shudder, Vibration During Acceleration

Possible Source(s):
^ Powertrain/driveline misalignment.

Action(s) to take:
^ CHECK for misalignment. INSTALL new components as necessary.

Possible Source(s):
^ High Constant Velocity (CV) joint operating angles caused by incorrect ride height.

Action(s) to take:
^ CHECK the ride height and VERIFY the correct spring rate. INSTALL new components as necessary.

Lubricant Leak

Possible Source(s):
^ Transaxle, transfer case or rear differential vents.

Action(s) to take:
^ INSTALL new components as necessary.

Possible Source(s):
^ Transaxle halfshaft seal, transfer case halfshaft seal, transaxle to transfer case O/ring seal, transfer case drive pinion seal, rear drive differential pinion seal or rear drive halfshaft seal.

Action(s) to take:
^ INSTALL new components as necessary.

Possible Source(s):
^ Filler plug.

Action(s) to take:
^ INSTALL new components as necessary.

Possible Source(s):
^ Axle rear cover joint.

Action(s) to take:
^ INSTALL new components as necessary.