Jaguar XJ (X350). Manual — part 39

PINPOINT TEST G215673p3 : IDLE
BOOM/SHAKE/VIBRATION/SHUDDER

G215673t6 : CHECK CABLE/HOSES

1. Check the engine compartment for any component that may be grounding between the
engine and body or chassis. Example: air conditioning (A/C) hoses.

•

Are the components OK?

-> Yes
GO to Pinpoint Test G215673t7.


-> No
CORRECT the condition. REPEAT the Road Test as outlined.

G215673t7 : CHECK THE STEERING WHEEL
DAMPER.

1. Remove the driver air bag module and visually inspect the steering wheel damper for
correct installation or any touch condition.

•

Is the damper OK?

-> Yes
GO to Pinpoint Test G215673t8.


-> No
CORRECT the condition. REPEAT the Road Test as outlined.

G215673t8 : CHECK THE COOLING RADIATOR

1. Check the engine cooling radiator mountings and bushings for security and condition.
Check the radiator installation for any component that may have a touch condition.

•

Are the installation and bushings OK?

-> Yes
GO to Pinpoint Test G215673t9.


-> No
CORRECT the condition. REPEAT the Road Test as outlined.

G215673t9 : CHECK THE EXHAUST SYSTEM

1. Carry out the exhaust system neutralizing procedure in this section.

•

Is the exhaust system OK?

-> Yes
CHECK and INSTALL new engine/transmission mounts as necessary. REPEAT Road Test as
outlined.

-> No
REPAIR as necessary. REPEAT Road Test.

PINPOINT TEST G215673p4 : WHEEL
END VIBRATION ANALYSIS

G215673t10 : INSPECT THE TIRES

1. Inspect the tires.

Raise and support the vehicle. <<100-02>>

Inspect the tires for:

Correct tire size

Tire/wheel compatibility

Wear or damage

Tire beads correctly seated

•

Are the tires OK?

-> Yes
GO to Pinpoint Test G215673t11.


-> No
INSPECT the wheels. For additional information, refer to <<204-00>> .

G215673t11 : INSPECT WHEEL BEARINGS

1. Inspect the wheel bearings. <<204-00>>

•

Are the wheel bearings OK?

www.

-> Yes
GO to Pinpoint Test G215673t12.


-> No
REPAIR as necessary. REPEAT the Road Test as outlined.

G215673t12 : INSPECT THE CONSTANT VELOCITY
(CV) JOINT BOOTS

1. Inspect the CV joint boots.

Spin the rear tire by hand

Inspect for evidence of cracks, tears, splits or splattered grease

•

Are the CV joint boots OK?

-> Yes
GO to Pinpoint Test G215673t13.


-> No
REPAIR as necessary. REPEAT the Road Test as outlined.

G215673t13 : INSPECT WHEEL AND TIRE RUNOUT

1. Inspect the wheel and tire runout.

Carry out the Wheel and Tire Check procedure. <<204-04>>

•

Is the wheel and tire runout OK?

-> Yes
Balance the wheels and tires. Refer to the wheel balance equipment manufacturers
instructions.

-> No
REPAIR as necessary. <<204-04>> REPEAT the Road Test as outlined.

PINPOINT TEST G215673p5 : NON-
AXLE NOISE

G215673t14 : INSPECT VEHICLE TRIM

1. Check the grille and trim mouldings to see if they are the source of the noise.

•

Are the vehicle trim components causing the noise?

-> Yes
INSTALL new trim or REPAIR as necessary. <<501-08>>

-> No
GO to Pinpoint Test G215673t15.

G215673t15 : CHECK THE A/C SYSTEM FOR NOISE

1. Check the A/C system components for noise by turning the A/C system on and off.

•

Is the A/C system causing the noise?

-> Yes
Diagnose the A/C system. <<412-00>>

-> No
GO to Pinpoint Test G215673t16.

G215673t16 : CHECK NON-FACTORY ACCESSORIES

1. Inspect any accessories for being the source of the noise. Example: grounding body-to-
frame, antennas, visors, bug deflectors and fog lights?

•

Are the accessories the cause of the noise?

-> Yes
ADJUST, REPAIR or INSTALL new accessories or fasteners as required.

-> No
Verify the customer concern

G215673t1 : CHECK THE AIR SUSPENSION

1. Inspect the air suspension components for being the source of the noise.

•

Is the air suspension the cause of the noise?

-> Yes
Install new components as required. <<204-05>>

-> No
Verify the customer concern.

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