JAGUAR XFR 2010 1.G Workshop Manual

Clunk

Clunk is a metallic noise heard when the automatic transmission is engaged in REVERSE or DRIVE. The noise may also occur
when the throttle is applied or released. Clunk is caused by transmission calibration, backlash in the driveline or loose
suspension components and is felt or heard in the vicinity of the rear drive axle.

Bearing Rumble

Bearing rumble sounds like marbles being tumbled. This condition is usually caused by a worn/damaged wheel bearing. The
lower pitch is because the wheel bearing turns at only about one-third of the driveshaft speed. Wheel bearing noise also may
be high-pitched, similar to gear noise, but will be evident in all four driving modes.

Symptom Chart

Symptom Possible Cause Action Noise is at constant tone over
a narrow vehicle speed range.
Usually heard on light drive
and coast conditions
Rear drive axle
For additional information, GO to Pinpoint
Test A. Noise is the same on drive or
coast
Road
Worn or damaged driveshaft joint
Driveshaft center bearing
Wheel bearing
No action required for road noise
Install new components as required Noise is produced with the
vehicle standing and driving
Engine
Transmission
For additional information, REFER to:
Engine - 3.0L/4.2L (303-00 Engine System - General Information, Diagnosis and Testing),
Engine - 2.7L Diesel (303-00 Engine System - General Information, Diagnosis and Testing),
Diagnostic Strategy (307-01A Automatic Transmission/Transaxle - V6 3.0L Petrol,
Diagnosis and Testing). Loud clunk in the driveline
when shifting from reverse to
forward
Transmission calibration
Transmission Mount
Transmission
Suspension components
Backlash in the driveline
Engine idle speed set too high
Engine mount
Using the Manufacturer approved diagnostic
system, re-configure the Transmission
Control Module (TCM) with the latest
available calibration
Inspect and install new transmission mounts
as required
For additional transmission information,
REFER to: Diagnostic Strategy (307-01A Automatic Transmission/Transaxle - V6 3.0L
Petrol, Diagnosis and Testing).
Inspect and install new suspension
components as required
Inspect and install new driveline components
as required
Check and adjust the idle speed as required
Inspect and install new engine mounts as
required Clicking, popping, or grinding
noises
Inadequate or contaminated
lubrication in the rear drive
halfshaft constant velocity (CV)
joint
Another component contacting the
Inspect, clean and lubricate with new grease
as required
Inspect and repair as required
Inspect and install new components as
required

Symptom Possible Cause Action rear drive halfshaft
Wheel bearings, brakes or
suspension components Vibration at highway speeds
Out-of-balance wheel(s) or tire(s)
Driveline out of
balance/misalignment
Driveshaft center bearing touching
body mounting point
Balance and install new wheel(s) and tire(s)
as required
REFER to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).
For additional information,
REFER to: Driveline Angle Inspection (205-00 Driveline System - General Information,
General Procedures).
Refer to the Manufacturer approved
diagnostic system for driveshaft balancing
application
Check for correct spacer washer thickness.
Inspect and install new washers as required Shudder, Vibration During
Acceleration
Powertrain/driveline misalignment
High constant velocity (CV) joint
operating angles caused by
incorrect ride height
Check for misalignment. Install new
components as required. For driveshaft
alignment,
REFER to: Driveline Angle Inspection (205-00 Driveline System - General Information,
General Procedures).
Check the ride height and verify the correct
spring rate. Install new components as
required Lubricant Leak
Rear drive axle breather
Damaged seal
Rear drive axle filler plug
Rear drive axle rear cover joint
Check oil level and correct as required
Install new components as required Pinpoint Tests

PINPOINT TEST A : EXCESSIVE DRIVELINE NOISE TEST
CONDITIONS DETAILS/RESULTS/ACTIONS A1: CHECK NOISE FROM VEHICLE ON ROAD TEST 1 Road test vehicle to determine load and speed conditions when noise occurs. 2 Assess the noise with different gears selected. Does the noise occur in different gears at the same vehicle speed? Yes
Install a new rear drive axle/differential assembly.
REFER to: Axle Assembly - V6 3.0L Petrol (205-02 Rear Drive Axle/Differential, Removal and Installation).
Re-test the system for normal operation.
No
Suspect the engine or transmission. For additional information, REFER to:
Engine - 3.0L/4.2L (303-00 Engine System - General Information, Diagnosis and Testing), Engine - 2.7L Diesel (303-00 Engine System - General Information, Diagnosis and Testing), Diagnostic Strategy (307-01A Automatic Transmission/Transaxle - V6 3.0L Petrol, Diagnosis and Testing).

Panels, Removal and Installation).

3. Remove the engine rear undershield. Alignment Tool
205-535 Special Tool(s)

www.JagDocs.com

Vehicles with diesel engine
7.
8.
All vehicles


9.
Remove the support bracket.
Remove the bolts.
Detach the intermediate muffler exhaust hanger
insulators.















Loosen the catalytic converter to diesel particulate filter
(DPF) retaining clamps.




















CAUTION: Make sure that the exhaust system is
supported with a suitable transmission stand.

Lower the exhaust assembly sufficiently to gain access to
the driveshaft heat shield.
Release the 6 exhaust hangers.

10. Remove the driveshaft heat shield.




























All vehicles


11.
CAUTION: Make sure that the special tool is correctly
located.
Using the special tool, align the driveshaft center bearing.
Tighten to 40 Nm.

12.
13. Install the driveshaft heat shield.
Tighten to 10 Nm.




































CAUTION: Make sure that the exhaust system is
supported with a suitable transmission stand.
Attach the exhaust hangers.

Vehicles with diesel engine

14.
15. Tighten the catalytic converter to DPF retaining clamps.
Tighten to 11 Nm.
















Install the support bracket.
Attach the intermediate muffler exhaust hanger
insulators.
Tighten to 10 Nm.











All except vehicles with diesel engine

16. Tighten the retaining nuts.
Tighten to 45 Nm.

17. Install the support bracket.
Tighten to 10 Nm.













All vehicles

18. Install the rear subframe cross brace.
Tighten to 62 Nm. www.JagDocs.com

Panels, Removal and Installation).