Symptom Chart

Symptom Chart
Noise is at constant tone over a narrow vehicle speed range. Usually heard on light driving and coasting conditions
Possible Source(s):
^ Rear drive differential.
^ Transfercase.
^ Transaxle.
Action(s) to take:
^ For additional information, refer to Pinpoint Test A

Noise is the same on driving or coasting.
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 Transmission.

Noise is more pronounced while turning
Possible Source(s):
^ Front or rear differential side gears and pinion gears.
Action(s) to take:
^ For additional information, refer to Front or rear differential side gears and pinion gears.

Loud clunk in the driveline when Shifting from Reverse to Drive.
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):
^ Transaxle Mount.
Action(s) to take:
^ INSPECT and I NSTALL new transaxle mounts as necessary.
Possible Source(s):
^ Transaxle.
Action(s) to take:
^ For additional information, refer to Transaxle.
Possible Source(s):
^ Suspension.
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 constant velocity (CV) joints.
^ 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 high speeds.
Possible Source(s):
^ Out-of-balance wheels and tires.
Action(s) to take:
^ INSTALL new wheels and tires as necessary.
Possible Source(s):
^ Driveline out of balance/misalignment.
Action(s) to take:
^ For additional information, refer to the approved Jaguar diagnostic system.

Shudder or 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 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 drive differential vent.
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.