front brake JAGUAR XFR 2010 1.G Owner's Manual
[x] Cancel search | Manufacturer: JAGUAR, Model Year: 2010, Model line: XFR, Model: JAGUAR XFR 2010 1.GPages: 3039, PDF Size: 58.49 MB
Page 332 of 3039
Upper Control Arm
The forged-aluminum upper control arm is a wishbone design and connects to the vehicle body through two plain bushes, and
links to the swan neck wheel knuckle by an integral ball joint. The upper control arm is inclined to provide anti-dive
characteristics under heavy braking, while also controlling geometry for vehicle straight-line stability.
Lower Control Arm
The forged aluminum lower control arms are of the wishbone design; the arms separate to allow for optimum bush tuning:
The rear lateral control arm is fitted with a bush at its inner end which locates between brackets on the subframe. The
arm is secured with an eccentric bolt which provides the adjustment of the suspension camber geometry. The outer end
of the control arm has a tapered hole which locates on a ball joint fitted to the wheel knuckle. An integral clevis bracket
on the forward face of the lateral control arm allows for the attachment of the forward control arm. A bush is fitted
below the clevis bracket to provide for the attachment of the stabilizer bar link. A cross-axis joint is fitted to a
cross-hole in the control arm to provide the location for the clevis attachment of the spring and damper assembly.
The forward control arm is fitted with a fluid-block rubber bush at its inner end which locates between brackets on the
subframe. The arm is secured with an eccentric bolt which provides adjustment of the castor and camber geometry. The
outer end of the control arm is fitted with a cross-axis joint and locates in the integral clevis bracket on the lateral
control arm.
Wheel Knuckle
The cast aluminum wheel knuckle is a swan neck design and attaches to the upper control arm and lower lateral control arm.
The lower lateral control arm locates on a non serviceable ball-joint integral with the wheel knuckle. The lower boss on the
rear of the knuckle provides for the attachment of the steering gear tie-rod ball joint.
The wheel knuckle also provides the mounting locations for the:
wheel hub and bearing assembly
the wheel speed sensor (integral to the wheel hub and bearing assembly)
brake caliper and disc shield.
Stabilizer Bar
The stabilizer bar is attached to the front of the subframe with bushes and mounting brackets. The pressed steel mounting
brackets locate over the bushes and are attached to the cross member with bolts screwed into threaded locations in the
subframe. The stabilizer bar has crimped, 'anti-shuffle' collars pressed in position on the inside edges of the bushes. The
collars prevent sideways movement of the stabilizer bar.
The stabilizer bar is manufactured from 32mm diameter tubular steel on supercharged models and 31mm diameter tubular
steel on diesel and normally aspirated models and has been designed to provide particular characteristics in maintaining roll
rates, specifically in primary ride comfort.
Each end of the stabilizer bar curves rearwards to attach to a ball joint on a stabilizer link. Each stabilizer link is secured to a
bush in the lower lateral arm with a bolt and locknut. The links allow the stabilizer bar to move with the wheel travel providing
maximum effectiveness.
The only difference between the front stabilizer bars, in addition to the diameter, is in the shape to accommodate engine
variant:
a slightly curved bar, between bush centers, for V6 diesel (31 mm dia) and V8 gasoline supercharged (32 mm dia),
a straight bar, between bush centers, for V6 and V8 normally aspirated gasoline engines (31 mm dia).
Spring and Damper Assembly
The spring and damper assemblies are located between the lower lateral arm and the front suspension housing in the inner
wing. Dependant on vehicle model there are three types of coil spring and damper available:
a standard oil passive damper (All models except supercharged),
an adaptive damper, also known as Computer Active Technology Suspension (CATS) on 4.2L supercharged vehicles up to
2010MY, For additional information refer to Vehicle Dynamic Suspension 4.2L.
a continuously variable adaptive damper, also known as Adaptive Dynamics System on 5.0L supercharged vehicles from
2010MY. For additional information refer to Vehicle Dynamic Suspension 5.0L.
The dampers are a monotube design with a spring seat secured by a circlip onto the damper tube. The damper's lower
spherical joint is an integral part of the lateral lower control-arm, and the damper takes the form of a clevis-end, which
straddles the spherical joint.
The damper piston is connected to a damper rod which is sealed at its exit point from the damper body. The threaded outer
end of the damper rod locates through a hole in the top mount. A self locking nut secures the top mount to the damper rod.
The damper rod on the adaptive damper has an electrical connector on the outer end of the damper rod.
Supercharged 4.2L vehicles up to 2010MY: The adaptive damper functions by restricting the flow of hydraulic fluid through
internal galleries in the damper's piston. The adaptive damper has a solenoid operated valve, which when switched allows a
greater flow of hydraulic fluid through the damper's piston. This provides a softer damping characteristic from the damper. The
adaptive damper defaults to a firmer setting when not activated. The solenoid is computer controlled and can switch between
soft and hard damping settings depending on road wheel inputs and vehicle speed.
Supercharged 5.0L vehicles from 2010MY: The variable damper functions by adjustment of a solenoid operated variable orifice,
which opens up an alternative path for oil flow within the damper. When de-energized the bypass is closed and all the oil flows
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Front Suspension - Wheel Knuckle
Removal and Installation Published: 11-May-2011
Removal
1. WARNING: Do not work on or under a vehicle supported only by a
jack. Always support the vehicle on safety stands.
Raise and support the vehicle.
2. Remove the hub assembly.
For additional information, refer to: Front Wheel Bearing and Wheel Hub - V6 3.0L Petrol (204-01 Front Suspension, Removal and Installation).
3. NOTE: LH illustration shown, RH is similar.
Remove the brake disc shield.
Remove the 3 rivets.
4. NOTES:
LH illustration shown, RH is similar.
Use an additional wrench to prevent the ball joint
rotating.
Disconnect the steering gear tie rod end ball joint.
Remove and discard the tie rod end retaining nut. Ball joint splitter
204-327 Special Tool(s)
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2. NOTE: Use an additional wrench to prevent the ball joint
rotating.
Connect the upper arm and wheel knuckle.
Tighten the nut to 90 Nm.
3. NOTE: Use an additional wrench to prevent the
component from rotating.
Connect the tie-rod end ball joint.
Tighten the nut to 133 Nm.
4. Install the brake disc shield.
Install the rivets.
5. Install the hub assembly.
For additional information, refer to: Front Wheel Bearing and Wheel Hub - V6 3.0L Petrol (204-01 Front Suspension, Removal and Installation).
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Rear Suspension - Rear Stabilizer Bar
Removal and Installation Published: 06-Jun-2013
Removal
1. Disconnect the battery ground cable.
For additional information, refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
2. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
3. Remove both rear wheels and tires.
For additional information, refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).
4. Drain the fuel tank.
For additional information, refer to: Fuel Tank Draining (310-00 Fuel System - General Information, General Procedures).
5. Remove the exhaust system.
For additional information, refer to: Front Muffler (309-00B Exhaust System - V6 3.0L Petrol, Removal and Installation).
6. CAUTION: Always plug any open connections to
prevent contamination.
NOTES:
To prevent the loss of brake fluid, using the special
tool apply the brake pedal and set to 40mm ( 1.6 in ) below
the rest position.
RH illustration shown, LH is similar.
Disconnect the brake hose from the brake caliper.
Using the special tool, press and hold the brake
pedal.
Remove and discard the two sealing washers. Powertrain Assembly Jack, HTJ
1200-2 Special Tool(s)
Page 483 of 3039
7 Rear accelerometer 8 Instrument cluster 9 JaguarDrive selector module 10 ABS (anti-lock brake system) module 11 TCM (transmission control module) 12 ECM (engine control module) 13 RH (right-hand) rear damper 14 RH front damper 15 LH (left-hand) front damper 16 LH rear damper 17 LH rear suspension height sensor 18 RH rear suspension height sensor 19 LH front suspension height sensor 20 RH front accelerometer 21 RH front suspension height sensor 22 Adaptive damping module 23 LH front accelerometer
PRINCIPLES OF OPERATION System Operation
The adaptive damping module uses a combination of information from other system modules and data from the accelerometers
and suspension height sensors to measure the vehicle and suspension states and driver inputs. Using this information, the
adaptive damping module applies algorithms to control the dampers for the current driving conditions.
The adaptive damping module receives signals on the high speed CAN bus from the following system components: Brake Pressure - ABS module. Brake Pressure Quality Factor - ABS module. Car Configuration Parameters - AJB. Center Differential Range Actual - ECM. Engine Speed - ECM. Engine Speed Quality Factor - ECM. Engine Torque Flywheel Actual - ECM. Engine Torque Flywheel Actual Quality Factor - ECM. Gear Position Target - TCM. Lateral Acceleration - ABS module. Power Mode (Ignition Signal) - CJB. Power Mode Quality Factor - CJB. Roll Stability Control Mode - ABS module. Steering Wheel Angle - ABS module. Steering Wheel Angle Speed - ABS module. Steering Wheel Angle Status - ABS module. Terrain Mode Requested - JaguarDrive selector.
Torque Converter Slip - TCM. Vehicle Information Parameters HS - AJB Vehicle Speed - ABS module. Vehicle Speed Quality Factor - ABS module. Front Left Wheel Speed - ABS module. Front Left Wheel Speed Quality Factor - ABS module. Front Right Wheel Speed - ABS module. Front Right Wheel Speed Quality Factor - ABS module. Rear Left Wheel Speed - ABS module. Rear Left Wheel Speed Quality Factor - ABS module. Rear Right Wheel Speed Quality Factor - ABS module. Rear Right Wheel Speed - ABS module. The adaptive damping module also outputs information on the high speed CAN bus for use by other systems as follows: Fault Message - instrument cluster.
Terrain Mode Change Status - JaguarDrive selector.
Terrain Mode - JaguarDrive selector.
The adaptive damping module monitors the input signals and operates the damper solenoids. The input signals are used in
control modes and a force required for each damper for that mode is calculated. An arbitration mode monitors the force
requirements from each mode and apportions a force to a damper. The force is converted to the appropriate current and sent to
the damper.
The control modes are as follows:
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Brake System - General Information -
Lubricants, Fluids, Sealers and Adhesives Published: 19-Jun-2014
CAUTION: Do not use brake fluid ITT Super Dot 4 on 2006my vehicles onwards. Failure to follow this instruction may
result in damage to the vehicle.
NOTE: Brake fluid ITT Super Dot 4 has now been superseded by Shell ESL Super Dot 4 which is the Jaguar recommended
brake fluid. Shell ESL Super Dot 4 can be used on all model years.
Item Specification Brake fluid Shell ESL Dot 4 Brake Lining and Disc Specifications
Item Specification Front brake pad material nominal thickness 13 mm (0.51 in) Front brake pad material minimum thickness 2 mm (0.08 in) Rear brake pad material nominal thickness 10.8 mm (0.43 in) Rear brake pad material minimum thickness 2 mm (0.08 in) Front brake disc diameter - 3.0L petrol, 3.0L diesel and 4.2L 326 mm (12.8 in) Front brake disc diameter - 3.0L diesel and 5.0L naturally aspirated 355 mm (14.0 in) Front brake disc diameter - 5.0L supercharged 380 mm (15.0 in) New front brake disc nominal thickness - 3.0L petrol 3.0L diesel and 4.2L 30 mm (1.18 in) New front brake disc nominal thickness - 3.0L diesel and 5.0L naturally aspirated 32 mm (1.26 in) New front brake disc nominal thickness - 5.0L supercharged 36 mm (1.42 in) Worn front brake disc minimum thickness - 3.0L petrol and 4.2L 28 mm (1.14 in) Worn front brake disc minimum thickness - 3.0L diesel and 5.0L naturally aspirated 30 mm (1.18 in) Worn front brake disc minimum thickness - 5.0L supercharged 34 mm (1.34 in) Rear brake disc diameter - all vehicles except 5.0L supercharged 326 mm (12.8 in) Rear brake disc diameter - 5.0L supercharged 376 mm (14.8 in) New rear brake disc nominal thickness - all vehicles except 5.0L supercharged 20 mm (0.79 in) New rear brake disc nominal thickness - 5.0L supercharged 26 mm (1.02 in) Worn rear brake disc minimum thickness - all vehicles except 5.0L supercharged 18 mm (0.72 in) Worn rear brake disc minimum thickness - 5.0L supercharged 24 mm (0.94 in) Maximum front brake disc runout (installed) 0.075 mm ( 0.003 in) Maximum rear brake disc runout (installed) 0.09 mm ( 0.004 in) Maximum front hub face runout (installed) 0.015 mm ( 0.0006 in) Maximum rear hub face runout (installed) 0.025 mm ( 0.0009 in) Front brake caliper piston diameter - all vehicles except 5.0L supercharged 60 mm (2.36 in) Front brake sliding caliper double piston diameter - 5.0L supercharged 42 mm (1.66 in) Rear brake caliper piston diameter 45 mm (1.77 in) Front brake caliper bleed screw - 3.0L petrol and 4.2L 8 Nm (6 lb-ft) Front brake caliper bleed screw - 3.0L diesel and 5.0L 14 Nm (10 lb-ft) Rear brake caliper bleed screw 14 Nm (10 lb-ft)
Page 582 of 3039
Brake System - General Information - Brake System
Diagnosis and Testing
Principle of Operation Published: 11-May-2011
For a detailed description of the brake system, refer to the relevant Description and Operation sections in the workshop
manual. REFER to:
Front Disc Brake (206-03, Description and Operation),
Front Disc Brake (206-03, Description and Operation),
Front Disc Brake (206-03, Description and Operation),
Rear Disc Brake (206-04, Description and Operation),
Rear Disc Brake (206-04, Description and Operation),
Rear Disc Brake (206-04, Description and Operation),
Parking Brake (206-05 Parking Brake and Actuation, Description and Operation), Parking Brake (206-05 Parking Brake and Actuation, Description and Operation), Parking Brake (206-05 Parking Brake and Actuation, Description and Operation), Hydraulic Brake Actuation (206-06 Hydraulic Brake Actuation, Description and Operation), Hydraulic Brake Actuation (206-06 Hydraulic Brake Actuation, Description and Operation), Hydraulic Brake Actuation (206-06 Hydraulic Brake Actuation, Description and Operation), Brake Booster (206-07 Power Brake Actuation, Description and Operation), Brake Booster (206-07 Power Brake Actuation, Description and Operation), Brake Booster (206-07, Description and Operation).
Inspection and Verification
Visually examine the front and rear wheel and tire assemblies for damage such as uneven wear patterns, tread worn out or
sidewall damage. Verify the tires are the same size, type and, where possible, same manufacturer. Replace the damaged
wheel or excessively worn tire.
Wheels and tires must be cleared of any foreign matter and tire pressures adjusted to the correct specification.
If the tires exhibit uneven wear or feathering, the cause must be corrected. Check the steering and suspension components for
damage or wear and, if necessary, check and adjust front wheel alignment. REFER to: (204-00 Suspension System - General
Information)
Specifications (Specifications), Front Toe Adjustment (General Procedures).
Visual Inspection
Mechanical Electrical
Brake master cylinder
Brake caliper piston(s)
Brake discs
Wheel bearings
Brake pads
Power brake booster
Brake pedal linkage
Brake booster vacuum hose
Tires
Debris
Parking brake actuator
Parking brake module
Parking brake switch
Damaged or corroded wiring harness
Brake master cylinder fluid level switch Road Test
Carry out a road test to compare actual vehicle braking performance with the performance standards expected by the driver.
The ability of the test driver to make valid comparisons and detect performance deficiencies will depend on experience.
The driver should have a thorough knowledge of brake system operation and accepted general performance guidelines to make
good comparisons and detect performance concerns.
An experienced brake technician will always establish a route that will be used for all brake diagnosis road tests. The roads
selected will be reasonably smooth and level. Gravel or bumpy roads are not suitable because the surface does not allow the
tires to grip the road equally. Crowned roads should be avoided because of the large amount of weight shifted to the low set
of wheels on this type of road. Once the route is established and consistently used, the road surface variable can be
eliminated from the test results.
Before a road test, obtain a complete description of the customer concerns or suspected condition. From the description, the
technician's experience will allow the technician to match possible causes with symptoms. Certain components will be tagged
as possible suspects while others will be eliminated by the evidence. More importantly, the customer description can reveal
unsafe conditions which should be checked or corrected before the road test. The description will also help form the basic
approach to the road test by narrowing the concern to specific components, vehicle speed or conditions.
Begin the road test with a general brake performance check. Keeping the description of the concern in mind, test the brakes at
different vehicle speeds using both light and heavy pedal pressure. To determine if the concern is in the front or rear braking
system, use the brake pedal and then use the parking brake control. If the condition (pull, vibration, pulsation) occurs only
with the parking brake, the concern is in the rear brake system.
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Symptom Possible Cause Action Electrical circuit
For parking brake control and circuit tests.
REFER to: Parking Brake (206-05, Diagnosis and Testing). Slow or incomplete brake
pedal return
Brake pedal binding
Brake booster/master cylinder GO to Pinpoint Test K. Pinpoint Tests
PINPOINT TEST A : BRAKES NOISY TEST
CONDITIONS DETAILS/RESULTS/ACTIONS A1: INSPECT BRAKE PADS 1 Inspect the condition of the front and rear brake pads. Check for damage to any anti-squeal shims. Are the brake pads OK? Yes
GO to A2. No
Clean/install new front and rear brake pads as required. REFER to:
Brake Pads - Vehicles With: Standard Brakes (206-03A Front Disc Brake - V6 3.0L Petrol, Removal and Installation),
Brake Pads - Vehicles With: High Performance Brakes (206-03A Front Disc Brake - V6 3.0L Petrol, Removal and Installation),
Brake Pads (206-04A Rear Disc Brake - V6 3.0L Petrol, Removal and Installation), Brake Pads - Vehicles With: High Performance Brakes (206-04, Removal and Installation).
Re-test vehicle for brake noise. A2: INSPECT BRAKE DISCS 1 Inspect the brake discs for excessive corrosion, wear or disc thickness variation. Does excessive corrosion, wear or disc thickness variation exist? Yes
Install new front and rear brake discs and brake pads as required. REFER to:
Brake Pads - Vehicles With: Standard Brakes (206-03A Front Disc Brake - V6 3.0L Petrol, Removal and Installation),
Brake Pads - Vehicles With: High Performance Brakes (206-03A Front Disc Brake - V6 3.0L Petrol, Removal and Installation),
Brake Pads (206-04A Rear Disc Brake - V6 3.0L Petrol, Removal and Installation), Brake Pads - Vehicles With: High Performance Brakes (206-04, Removal and Installation),
Brake Disc - Vehicles With: Standard Brakes (206-03A Front Disc Brake - V6 3.0L Petrol, Removal and Installation),
Brake Disc - Vehicles With: High Performance Brakes (206-03A Front Disc Brake - V6 3.0L Petrol, Removal and Installation),
Brake Disc (206-04A Rear Disc Brake - V6 3.0L Petrol, Removal and Installation), Brake Disc - Vehicles With: High Performance Brakes (206-04, Removal and Installation).
Re-test vehicle for brake noise.
No
No action required, vehicle is OK.
PINPOINT TEST B : VIBRATION WHEN BRAKES ARE APPLIED TEST
CONDITIONS DETAILS/RESULTS/ACTIONS B1: ROAD TEST VEHICLE 1 Road test the vehicle between 40-80 km/h (25-50 mph) without applying brakes. Is the vibration present?
Yes
For noise vibration and harshness tests.
REFER to: Noise, Vibration and Harshness (NVH) (100-04 Noise, Vibration and Harshness, Diagnosis and Testing).
No
GO to B2. B2: CHECK FOR BRAKE VIBRATION 1 Road test the vehicle between 40-80 km/h (25-50 mph) with light and medium application on the brake pedal. Is a vibration present?
Yes
Check the brake caliper mounting bolts and wheel hub nuts and tighten to specification as required. Check
the balance of all road wheels and tires and repair as required. Check the brake discs for excessive wear,
runout, thickness variation or cracks. Install new brake discs and brake pads as required. GO to B3. No
No action required, vehicle is OK. B3: IS VIBRATION STILL PRESENT UNDER BRAKE APPLICATION? 1 Road test the vehicle between 40-80 km/h (25-50 mph) with light and medium application on the brake pedal.
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TEST
CONDITIONS DETAILS/RESULTS/ACTIONS C1: ROAD TEST VEHICLE 1 Road test the vehicle and apply the brake pedal. Does the vehicle pull or drift?
Yes
GO to C2. No
No action required, vehicle is OK. C2: INSPECT TIRE CONDITION/PRESSURE 1 Check for excessive tire wear or incorrect pressures. Are the tires at the correct pressure and in good condition?
Yes
GO to C3. No
Adjust the tire pressures or install new tires if excessively worn. Re-test the system for normal operation. C3: CHECK CALIPERS 1 Check the disc brake caliper pistons and pins for binding, leaking or sticking. Do the disc brake caliper pistons and pins bind, leak or stick?
Yes
Rectify sticking pins and install new brake calipers as required. REFER to:
Brake Caliper - Vehicles With: Standard Brakes (206-03A Front Disc Brake - V6 3.0L Petrol, Removal and Installation),
Brake Caliper - Vehicles With: High Performance Brakes (206-03A Front Disc Brake - V6 3.0L Petrol, Removal and Installation),
Brake Caliper (206-04A Rear Disc Brake - V6 3.0L Petrol, Removal and Installation), Brake Caliper - Vehicles With: High Performance Brakes (206-04, Removal and Installation).
Re-test the system for normal operation.
No
GO to C4. C4: INSPECT BRAKE DISCS 1 Check the brake discs for excessive damage, thickness variation or runout. REFER to: Brake Disc Runout Check (206-00 Brake System - General Information, General Procedures). Does excessive damage or runout exist?
Yes
Install new brake discs and brake pads as required. Re-test the system for normal operation.
No
GO to C5. C5: INSPECT THE FRONT HUB AND WHEEL BEARING ASSEMBLY 1 Check the front hub and wheel bearing assembly. Are the wheel bearings OK?
Yes
GO to C6. No
Install new wheel bearings as required.
REFER to: Front Wheel Bearing and Wheel Hub - V6 3.0L Petrol (204-01 Front Suspension, Removal and Installation).
Re-test the system for normal operation. C6: CHECK SUSPENSION BUSHINGS AND BALL JOINTS. 1 Check all suspension bushings and ball joints. Are the suspension bushings and ball joints OK?
Yes
GO to C7. No
Install new front suspension bushings and ball joints as required. Install new rear suspension bushings
and ball joints as required. Refer to the relevant section in the workshop manual. C7: CHECK VEHICLE ALIGNMENT 1 Check the vehicle alignment. REFER to: Front Subframe - 2.7L Diesel (502-00, Removal and Installation),
Front Subframe - V6 3.0L Petrol (502-00 Uni-Body, Subframe and Mounting System, Removal and Installation),
Front Subframe - 4.2L (502-00, Removal and Installation). Is a vibration present?
Yes
Check for wear or failure of steering gear bushings. Check for wear or failure of steering gear ball joints.
Check for wear or failure of front wheel bearings, suspension bushings and ball joints. Check for wear or
failure of rear wheel bearings, suspension bushings and ball joints. Refer to relevant section in workshop
manual and install new components as required.
No
No action required, vehicle is OK.
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TEST
CONDITIONS DETAILS/RESULTS/ACTIONS D1: CHECK FOR SPONGY PEDAL (ENGINE OFF) 1 Check for a firm brake pedal. Is the brake pedal effort and brake pedal travel normal? Yes
No action is required, vehicle is OK.
No
GO to D2. D2: CHECK BRAKE PEDAL RESERVE (ENGINE OFF) 1 Pump the brake pedal 10 times and hold on the final application. Does the brake pedal feel firm on final application? Yes
GO to D3. No
Bleed the brake system.
REFER to: Brake System Bleeding (206-00 Brake System - General Information, General Procedures). D3: CHECK BRAKE PEDAL RESERVE (ENGINE ON) 1 With engine running at idle speed. 2 Apply the brake pedal lightly three or four times. 3 Wait 15 seconds for the vacuum to recover. 4 Push down on the brake pedal until it stops moving downward or an increased resistance to the brake pedal travel occurs. 5 Hold the brake pedal in the applied position while increasing the engine speed to 2000 revs/min. 6 Release the accelerator pedal. Does the brake pedal move downward as the engine speed returns to idle? Yes
GO to D4. No
Check the vacuum to brake booster. D4: CHECK BRAKE FLUID LEVEL 1 Check the brake master cylinder reservoir fluid level. Is the fluid level OK? Yes
Bleed the brake system.
REFER to: Brake System Bleeding (206-00 Brake System - General Information, General Procedures). Re-test the system for normal operation.
No
Check for leaking brake system and rectify as required. Add fluid and bleed the brake system.
REFER to: Brake System Bleeding (206-00 Brake System - General Information, General Procedures). Re-test the system for normal operation.
PINPOINT TEST E : THE PEDAL GOES DOWN FAST TEST
CONDITIONS DETAILS/RESULTS/ACTIONS E1: ROAD TEST VEHICLE 1 Road test the vehicle and apply the brake pedal. Is the brake pedal effort and brake pedal travel normal? Yes
No action required, vehicle is OK.
No
GO to E2. E2: CHECK BRAKE PEDAL TRAVEL-PRESSURIZE SYSTEM 1 Pump the brake pedal rapidly (five times). Does the brake pedal travel build up and then hold? Yes
Bleed the brake system.
REFER to: Brake System Bleeding (206-00 Brake System - General Information, General Procedures). Re-test the system for normal operation.
No
GO to E3. E3: CHECK FOR BRAKE SYSTEM LEAKS Is the alignment within specification?
Yes
No action is required, vehicle is OK.
No
Adjust the alignment as required. REFER to:
Front Subframe - 2.7L Diesel (502-00, Removal and Installation),
Front Subframe - V6 3.0L Petrol (502-00 Uni-Body, Subframe and Mounting System, Removal and Installation),
Front Subframe - 4.2L (502-00, Removal and Installation).