2010 JAGUAR XFR Workshop Manual

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Page 721 of 3039

JAGUAR XFR 2010 1.G Workshop Manual
Symptom Possible Causes Action Suspension System - General
Information)
Camber and Caster Adjustment (General Procedures),
Front Toe Adjustment (General Procedures),
Rear Toe Adjustment (Gener

Symptom Possible Causes Action Suspension System - General
Information)
Camber and Caster Adjustment (General Procedures),
Front Toe Adjustment (General Procedures),
Rear Toe Adjustment (General Procedures).
Vehicle is unevenly loaded or overloaded
Notify the customer of incorrect
vehicle loading

Steering gear is not correctly adjusted
CAUTION: DO NOT attempt to
adjust the steering gear yoke. Failure to
follow this instruction will invalidate the
steering gear warranty

Check and install a new steering
gear as required, refer to the
new module/component
installation note at the top of
the Symptom Charts

Loose, damaged or worn front suspension
components
Check/tighten and install new
front suspension components as
required.
REFER to: Specifications (204-00 Suspension System - General
Information, Specifications).

Loose, damaged or worn rear suspension
components
Check/tighten and install new
rear suspension components as
required.
REFER to: Specifications (204-00 Suspension System - General
Information, Specifications).

Incorrect brake operation
For information on diagnosis of
the brake system.
REFER to: Brake System (206-00 Brake System - General
Information, Diagnosis and
Testing).

Incorrect underbody alignment
Set underbody alignment
referring to the Removal and
Installation procedures in section
502-00 of the workshop manual
for instruction

Vehicle wanders from
side to side when driven
straight ahead and the
steering wheel is held in
a firm position

Incorrect tire pressure or tire size
Check and adjust the tire
pressures as required.
REFER to: Specifications (204-04 Wheels and Tires,
Specifications).
Check and install a new tire as
required
Vehicle is unevenly or excessively loaded
Notify the customer of incorrect
vehicle loading

Incorrect toe adjustment
Check and adjust as required.
REFER to: (204-00 Suspension
System - General Information)
Camber and Caster Adjustment (General Procedures),
Front Toe Adjustment (General Procedures),
Rear Toe Adjustment (General Procedures).

Page 722 of 3039

JAGUAR XFR 2010 1.G Workshop Manual Noise

Symptom Possible Causes Action

Continuous noise

Low power steering fluid level
Check for leaks and rectify as required. For further
information refer to the sym

Noise

Symptom Possible Causes Action

Continuous noise

Low power steering fluid level
Check for leaks and rectify as required. For further
information refer to the symptom charts for
leakage in this section. Fill power steering fluid
reservoir to correct level
NOTE: Look for small air bubbles
visible in the fluid, air may also get
trapped in the hydraulic system

Air in hydraulic system
Bleed the power steering system.
REFER to: Power Steering System Bleeding (211-00 Steering System - General Information,
General Procedures).
Power steering pipe/hose in
contact with the vehicle body
Check and reposition, or install new IF
damaged/deformed, power steering pipe/hose
Power steering pipe/hose
restricted or twisted
Check and clear restriction to pipe/hose
Reposition power steering pipe/hose. Install new
pipe/hose IF permanently damaged/deformed

Power steering pump mounting
bolts loose
Tighten the power steering pump mounting bolts
to the correct torque.
REFER to: Specifications (211-00 Steering System - General Information, Specifications).

Noise gets worse
when system is
loaded

NOTE: Refer to the power
steering pressure check in this section

Low power steering fluid level
Aerated fluid
Low power steering pump
pressure
Check and fill power steering fluid reservoir to
correct level
Bleed the power steering system.
REFER to: Power Steering System Bleeding (211-00 Steering System - General Information,
General Procedures).
Check power steering pump pressure. If the pump
pressure is low, install a new power steering
pump
Front End Accessory
Drive (FEAD) belt
squeal
FEAD belt incorrectly tensioned
or glazed
Check FEAD belt tension
Check FEAD belt condition and install a new belt
as required
Chirp noise from the
steering pump when a
load is applied
Loose or worn FEAD belt
Check FEAD belt tension
Check FEAD belt condition and install a new belt
as required
Scrape/grind noise
from behind steering
wheel while steering
Steering column shroud foul
condition or clockspring
Correctly install the steering column shroud to
eliminate the foul condition
Install a new clockspring as required
Foreign objects
Remove foreign objects from between steering
column shroud and steering wheel/steering
column rotating components
Click
Clockspring or steering column
multifunction switch LH
Correctly install and install new components as
required
Loose universal joint pinch bolt
Install a new universal joint pinch bolt and
tighten to correct specification.
REFER to: Specifications (211-00 Steering System - General Information, Specifications).
Squeak
Steering column shroud joints
Apply Krytox spray to steering column shroud
joints
Clockspring
Install new clockspring as required

Page 723 of 3039

JAGUAR XFR 2010 1.G Workshop Manual
Symptom Possible Causes Action
Knock
Loose fixings (universal joint
pinch bolt and steering column
fixings)
Tighten fixings to correct specification.
REFER to: Specifications (211-00 Steeri

Symptom Possible Causes Action
Knock
Loose fixings (universal joint
pinch bolt and steering column
fixings)
Tighten fixings to correct specification.
REFER to: Specifications (211-00 Steering System - General Information, Specifications).

Rattle
Foreign objects
Remove foreign objects from between steering
column shroud and steering wheel/steering
column rotating components
Loose fixings
Tighten steering column fixings to correct
specification.
REFER to: Specifications (211-00 Steering System - General Information, Specifications).

Noise while adjusting
column
Electric motor/solenoid
NOTE: Before carrying out repairs/replacement,
assess column adjustment noise levels against other
vehicles of the same model
Install new components as required
Motor spindle/lead screw
Lubricate lead screw Vibration

Symptom Possible Causes Action

Wheel Fight (Kick Back) - condition
where roughness is felt in the
steering wheel by the driver when
the vehicle is driven over rough
surfaces

Loose or worn steering
components/bushings
CAUTION: DO NOT attempt to adjust the
steering gear yoke. Failure to follow this
instruction will invalidate the steering gear
warranty.

Tighten and install new steering
components/bushings as required
Loose or worn suspension
components/bushings
Tighten and install new suspension
components/bushings as required

Nibble (Shimmy) - condition where
oscillation of the steering wheel
occurs (not vertical which is Shake).
This is driven by road wheel
imbalance

Road wheel and tire
condition
Check for wheel and tire damage. Install
new components as required
Check for tire uniformity. Install new
tire(s) as required
Road wheel imbalance
Check and adjust road wheel balance as
required
Shake - condition where vertical
vibration of the steering
wheel/column occurs (not
oscillation which is Nibble)
NOTE: Vibration smooths out
after several miles of driving

Road wheel imbalance due
to tire flat-spotting
Ensure tires installed are to Jaguar
specification. Install new tires as
required
Check and adjust tire pressures to
correct specification Component Tests

Steering Linkage Inspection and Backlash (Free play) Check

CAUTION: Steering gear boots must be handled carefully to avoid damage. Use new clamps when installing steering gear
boots.

Inspect the boots for cuts, deterioration, twisting or distortion. Check the steering gear boots to make sure they are tight.
Install new boots or clamps as required.

NOTE: The following steps must be carried out with assistance.

1. With the wheels in the straight ahead position, gently turn the steering wheel to the left and the right to check for free
play.

Page 724 of 3039

JAGUAR XFR 2010 1.G Workshop Manual 2. Free play should be between 0 and 6 mm (0 and 0.24 in) at the steering wheel rim. If the free play exceeds this limit,
either the ball joints are worn, the lower steering column joints are worn or

2. Free play should be between 0 and 6 mm (0 and 0.24 in) at the steering wheel rim. If the free play exceeds this limit,
either the ball joints are worn, the lower steering column joints are worn or the backlash of the steering gear is
excessive.

CAUTION: DO NOT attempt to adjust the steering gear yoke. Failure to follow this instruction will invalidate the steering
gear warranty.
3. The backlash of the steering gear cannot be adjusted, install a new steering gear if excessive backlash is diagnosed.

4. Grasp the steering wheel firmly and move it up and down and to the left and right without turning the wheel to check
for column bearing wear, steering wheel or steering column.
Power Steering Fluid Condition Check

1. Run the engine for 2 minutes.
2. Check the power steering fluid system level.

3. Observe the color and the odor. The color under normal circumstances should be dark reddish, not brown or black.

4. Using a suitable clean syringe extract a suitable amount of fluid from the reservoir.
5. Allow the fluid to drip onto a facial tissue and examine the stain.

6. If evidence of solid material is found, the power steering fluid system should be drained for further inspection.

7. If fluid contamination or steering component failure is confirmed by the sediment in the power steering fluid system,
refer to Steering Fault Diagnosis by Symptom Charts in this section.
Power Steering Pressure Test

Test Equipment

Item Part Number Description 1 211-011 Pressure Gauge Hose 2 211-011-08 Pump Return Hose 3 211-011-07 Pump Return Hose Connector 4 211-011-03/2 Test Equipment to High Pressure Hose Adaptor 5 211-011-03/1 Pump High Pressure Outlet to Hose Adaptor 6 211-011-02 Pump Adaptor to Control Valve Hose 7 211-011-01 Control Valve 8 211-011 Pressure Gauge 9 - 'O' Ring Seal The measurement of the maximum system pressure, (which is governed by the pressure relief valve) is achieved by inserting
the Service Tool (pressure gauge and adaptors) into the fluid circuit of the power steering system. Run the engine at idle
speed, turn the steering from lock to lock and read the maximum pressure recorded on the gauge.

Installing Test Equipment

To install the pressure test equipment:

Place a suitable drain tray below the power steering pump.
Install a hose clamp on the reservoir to pump hose prior to disconnecting any hoses, to avoid unnecessary loss of fluid.
Disconnect the hose from the power steering pump high pressure outlet.
Install the pump outlet to hose adaptor (5). Do not omit the 'O' ring seal (9).
Connect the power steering pump adaptor to control valve hose (6) of the test equipment.
Install the adaptor (4) in the high pressure hose previously removed from the power steering pump outlet.
Connect the connector (3) of the test equipment hose (2) to the adaptor (4).
Remove the hose clamp from the reservoir hose.
Start the engine to check the system pressure. www.JagDocs.com

Page 725 of 3039

JAGUAR XFR 2010 1.G Workshop Manual With the control valve (7) OPEN and the engine idling, the following system pressures may be checked:

During turning when static (dry parking pressure).
When the steering is held on full lock (max

With the control valve (7) OPEN and the engine idling, the following system pressures may be checked:

During turning when static (dry parking pressure).
When the steering is held on full lock (maximum system pressure or pressure relief).
With the steering at rest (idle pressure or back pressure).
CAUTIONS:

To avoid excessive heating of the power steering pump when checking the pressure, do not close the valve for more than
5 seconds maximum.

When checking the pump pressure DO NOT drive the vehicle with the test equipment installed.

With the control valve (7) CLOSED the power steering pump maximum output pressure can be checked.

Removing Test Equipment

To remove the test equipment:

Install a hose clamp on the reservoir to power steering pump hose.
Removing the test equipment is a reversal of the installation instructions.
Install a new 'O' ring seal (9) to the power steering pump high pressure outlet to hose connection.
Install the original hose to the power steering pump.
Remove the clamp from the reservoir to the power steering pump hose.
Top-up the reservoir fluid.
Bleed the power steering system.
REFER to: Power Steering System Bleeding (211-00 Steering System - General Information, General Procedures).
Description of Terms General Steering System Noises
Boom
Rhythmic sound like a drum roll or distant thunder. May cause pressure on the ear drum.

Buzz

Low-pitched sound, like a bee. Usually associated with vibrations.

Chatter

Rapidly repeating metallic sound.

Chuckle

Rapid noise that sounds like a stick against the spokes of a spinning bicycle wheel.

Chirp

High pitched rapidly repeating sound, like chirping birds.

Click

Light sound, like a ball point pen being clicked.

Click/Thump

Heavy metal-to-metal sound, like a hammer striking steel.

Grind

Abrasive sound, like a grinding wheel or sandpaper rubbing against wood.

Groan/Moan

Continuous, low-pitched humming sound.

Groan/Howl

Low, guttural sound, like an angry dog.

Hiss

Continuous sound like air escaping from a tire valve.

Page 726 of 3039

JAGUAR XFR 2010 1.G Workshop Manual Hum

Continuous sound of varying frequencies, like a wire humming in the wind.

Knock

Heavy, loud repeating sound like a knock on a door.

Ping

Similar to knock, except at higher frequency

Hum

Continuous sound of varying frequencies, like a wire humming in the wind.

Knock

Heavy, loud repeating sound like a knock on a door.

Ping

Similar to knock, except at higher frequency.

Rattle

A sound suggesting looseness, such as marbles rolling around in a can.

Roar

Deep, long, prolonged sound like an animal, or winds and ocean waves.

Rumble

Low, heavy continuous sound like that made by wagons or thunder.

Scrape

Grating noise like one hard plastic part rubbing against another.

Squeak

High-pitched sound like rubbing a clean window.

Squeal

Continuous, high-pitched sound like running finger nails across a chalkboard.

Tap

Light, hammering sound like tapping pencil on edge of table. May be rhythmic or intermittent.

Whirr/Whine

High-pitched buzzing sound, like an electric motor or drill.

Whistle

Sharp, shrill sound, like wind passing a small opening.

Specific Steering System Noise Types
Belt Squeal
Belt squeal is a high frequency air-borne noise generated by slippage of the ribbed Vee belt on the power steering pump
pulley. Squeal increases with system loading and at full lock.

Clonk

Clonk is a structure-borne noise heard as a loose-sounding rattle or vibration coming from the steering column. Clonk can be
identified by driving and turning over cobblestones, rough roads, or high frequency bumps such as 25-50 mm tall tar strips.
Clonk requires a tie-rod load impact.

Column Knock

Column knock is a loose-sounding rattle or vibration generated by the steering column shaft contacting other portions of the
column assembly. The noise is both audible and tactile. Column knock is generated by driving over cobblestones or rough
pavement. It is not necessary to turn the steering wheel to create this noise.

Column Rattle

Column rattle is a metallic sounding noise created when applying a highly impulsive force to the steering wheel. Column rattle
is often used to combine the more general group of column noises including clonk and column knock. Column rattle noises can
be caused by clonk, knock, loose column components, bonus parts etc. A series of parked, straight-line driving, and cornering
tests should be carried out to isolate the source/sources.

Grinding/Scrape

Grinding is a low frequency noise in the column when the steering wheel is turned. It is generally caused by interference

Page 727 of 3039

JAGUAR XFR 2010 1.G Workshop Manual between moving components such as the steering wheel to steering column shroud.

Grunt (Squawk/Whoop)

Grunt is a honking sound elicited when coming off one of the steering stops. Grunt is gener

between moving components such as the steering wheel to steering column shroud.

Grunt (Squawk/Whoop)

Grunt is a 'honking' sound elicited when coming off one of the steering stops. Grunt is generally excited during parking
manoeuvres with a low to medium speed steering input.

Hiss (Swish)

Hiss or Valve Hiss is a high-frequency sound coming from the steering gear when the system is loaded. It is a rushing or
'swish' noise that doesn't change frequency with RPM. Hiss is the general noise generated by the flow of hydraulic fluid through
restrictions in the steering system. Restrictions include the rotary steering valve, power steering tubes, connectors, tuning
orifices, etc. Hiss can be air-borne and structure-borne, but the structure-borne path through the steering intermediate shaft is
usually dominant.

Moan (Groan)

Moan is the general structure-borne noise of the steering system. Moan is primarily transmitted to the driver via the body
structure through the pump mount, engine mounts, power steering lines and power steering brackets. On some vehicles, moan
is a loud humming noise, often present when the wheel is turned and the system is loaded. It may change frequency with
engine RPM and if the system is loaded or unloaded.

Steering Gear Knock (Steering Gear Slap)

CAUTION: DO NOT attempt to adjust the steering gear yoke. Failure to follow this instruction will invalidate the steering
gear warranty.

Steering gear knock is a rattle sound and steering wheel vibration caused by separation of the steering gear and pinion while
driving over bumps. It is a structure-borne noise transmitted through the intermediate shaft and column. Steering gear knock
can also be heard as a 'thump' or impact noise that occurs with the vehicle stationary when the steering wheel is released
from a loaded position and allowed to return to rest. Noise occurs with the engine on or off.

Rattles

Rattles are noises caused by knocking or hitting of components in the steering system. Steering rattles can occur in the engine
compartment, the suspension, or the passenger compartment. Rattles can be caused by loose components, movable and
flexible components, and improper clearances.

Squeaks/Scrapes

Squeaks/Scrapes are noises due to friction or component rubbing anywhere in the steering system. Squeaks/Scrapes have
appeared in steering linkages and joints, in column components and in column and steering wheel trim.

Weep

Weep is an air-borne noise, occasionally generated when turning the steering across lock at a constant rate. When present on
a vehicle the noise, once initiated can often be maintained across a large proportion of the available steering movement.

Whistle

Whistle is similar to hiss but is louder and of a higher frequency. It is also more of a pure tone noise than hiss. Whistle is
air-borne and is generated by a high flow rate of hydraulic fluid through a small restriction.

Zip

Zip noise is the air-borne noise generated by power steering pump cavitation when power steering fluid does not flow freely
through the suction hose from the reservoir to the pump. Zip primarily occurs during cold weather at start-up.

Steering System Vibrations and Harshness
Buzz
Buzz is a tactile rotary vibration felt in the steering wheel when steering inputs are slow. Buzz can also be called a grinding
feel and it is closely related to grunt and is caused by high system gain with low damping. Buzz is generally excited during
parking manoeuvres with low to medium speed steering input.

Buzz (Electrical)

A different steering buzz can be caused by pulse width modulated (PWM) electric actuators used in variable assist steering
systems. This buzz is felt by turning the ignition key to run without starting the engine and holding onto the steering wheel.
In extreme cases, the buzz can be felt with the engine running also.

Column/Steering Wheel Shake

Column shake is a low frequency vertical vibration excited by primary engine vibrations.

Nibble (Shimmy)

Page 728 of 3039

JAGUAR XFR 2010 1.G Workshop Manual Steering nibble is a rotary oscillation or vibration of the steering wheel, which can be excited at a specific vehicle speed.
Nibble is driven by wheel and tire imbalance exciting a suspension recess

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