1985 FORD GRANADA sensor

1The sensor is located in the upper section of
the inlet manifold (DOHC fuel-injection
engines) or the side of the plenum chamber
(V6 engines).
2To remove the sensor, first disconnect the
battery negative lead.
3Disconnect the sensor wiring plug by pulling
on the plug, not the wiring (see illustration).
4Unscrew the sensor from the inlet manifold
and remove it.
5Refitting is a reversal of removal, applying a
smear of sealant to the threads of the sensor
and tightening it to the specified torque.
1Fitted to 2.0 litre DOHC fuel-injected
engines,this sensor is located in the top of the
fuel rail.
2To remove the sensor, first disconnect the
battery negative lead, and to improve access,
disconnect the wiring plug from the air charge
temperature sensor (in the inlet manifold).
Disconnect the sensor wiring plug by pulling
on the plug, not the wiring.
3Disconnect the fuel temperature sensor
wiring plug, again pulling on the plug (see
illustration).
4Unscrew the sensor from the fuel rail and
remove it.
5Refitting is a reversal of removal, tightening
the sensor to the specified torque.1Fitted to DOHC fuel-injected engines and to
V6 engines with catalytic converters, this
sensor is located in the left-hand side of the
gearbox/transmission.
2To remove the sensor first disconnect the
battery negative lead.
3Firmly apply the handbrake then jack up the
vehicle and support it securely on axle stands
(see “Jacking”).
4Detach the sensor wiring connector from
the bracket, and separate the two halves of
the connector (see illustration).
5Unscrew the securing bolt, and withdraw
the wiring connector bracket, noting the
orientation.
6Withdraw the sensor from the
gearbox/transmission casing.
7Before refitting the sensor, examine the O-
ring, and renew if damaged or worn.
8Refitting is a reversal of removal, ensuring
that the wiring connector bracket is correctly
located.
1On DOHC fuel-injected engines, this sensor
is located on the right-hand side of the engine
compartment where it is mounted either on
the suspension turret or on the bulkhead (see
illustration). V6 engines have the sensormounted on the centre of the engine
compartment bulkhead.
2To remove the sensor first disconnect the
battery negative terminal.
3Remove the two sensor retaining screws
and carefully withdraw the sensor, taking care
not to strain the wiring.
4Disconnect the wiring plug from the sensor,
pulling on the plug not the wiring, then
disconnect the vacuum hose and remove the
sensor.
5Refitting is a reversal of removal.
28Manifold absolute pressure
(MAP) sensor - removal and
refitting
27Vehicle speed sensor -
removal and refitting
26Fuel temperature sensor -
removal and refitting
25Air charge temperature
sensor - removal and refitting
5•12Engine electrical systems
25.3 Disconnecting the air charge
temperature sensor wiring plug
28.1 Manifold Absolute Pressure (MAP)
sensor location - models equipped with a
catalytic converter
26.3 Disconnecting the fuel temperature
sensor wiring plug27.4 Vehicle speed sensor wiring plug
(arrowed)
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Chapter 10
Braking system
ABS module - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . .25
Brake discs - inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Brake hydraulic system - bleeding . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Brake hydraulic system - fluid renewal . . . . . . . . . . . . . . . . . . . . . . .3
Brake pedal - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . .14
Brake pipes and hoses - inspection, removal and refitting . . . . . . .21
Control module (April 1992 on) - removal and refitting . . . . . . . . . .31
Front brake disc - removal and refitting . . . . . . . . . . . . . . . . . . . . . . .5
Front brake pads - inspection and renewal . . . . . . . . . . . . . . . . . . . .7
Front caliper - overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Front caliper - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . .9
G (gravity) switch (April 1992 on) - removal and refitting . . . . . . . . .33
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Handbrake cable - adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Handbrake cable - removal and refitting . . . . . . . . . . . . . . . . . . . . .23
Handbrake control lever - removal and refitting . . . . . . . . . . . . . . . .24
Hydraulic unit - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . .15
Hydraulic unit accumulator - removal and refitting . . . . . . . . . . . . .17Hydraulic unit fluid reservoir - removal and refitting . . . . . . . . . . . .16
Hydraulic unit hoses - removal and refitting . . . . . . . . . . . . . . . . . . .20
Hydraulic unit pressure switch - removal and refitting . . . . . . . . . . .19
Hydraulic unit pump and motor - removal and refitting . . . . . . . . . .18
Master cylinder (April 1992 on) - removal and refitting . . . . . . . . . .27
Pedal Travel Sensor (PTS) (April 1992 on) - removal and refitting . .32
Rear brake disc - removal and refitting . . . . . . . . . . . . . . . . . . . . . . .6
Rear brake pads - inspection and renewal . . . . . . . . . . . . . . . . . . . .8
Rear caliper - overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Rear caliper - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . .11
Rear disc splash shield - removal and refitting . . . . . . . . . . . . . . . .13
Vacuum servo unit (April 1992 on) - testing, removal and refitting .28
Vacuum servo unit check valve (April 1992 on) - removal, testing and
refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Valve block and pump assembly (April 1992 on) - removal and
refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Wheel sensors - removal and refitting . . . . . . . . . . . . . . . . . . . . . . .26
General
System type: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Discs all round, hydraulic operation, anti-lock braking system
(ABS). Handbrake by mechanical operation of rear calipers
System make:
Models up to April 1992 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Teves MK II ABS
Models from April 1992 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Teves MK IV ABS
Hydraulic system
Fluid type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic fluid to Ford spec SAM-6C9103-A
Operating pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 to 190 bar (1885 to 2755 lbf/in2)
Pressure warning switch operates at . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 to 110 bar (1450 to 1595 lbf/in2)
Brake pads
Lining minimum thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 mm (0.06 in)
Brake discs
Run-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.15 mm (0.006 in) maximum
Thickness variation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.015 mm (0.0006 in) maximum
Minimum thickness:
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 mm (0.87 in)
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cast into outer rim (typically 8.9 mm/0.35 in)
Rear - Estate models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 mm (0.71 in)
10•1
Easy,suitable for
novice with little
experienceFairly easy,suitable
for beginner with
some experienceFairly difficult,
suitable for competent
DIY mechanicDifficult,suitable for
experienced DIY
mechanicVery difficult,
suitable for expert
DIY or professional
Degrees of difficulty
Specifications Contents
10
procarmanuals.com

Models covered in this Manual have disc
brakes fitted all round. The footbrake operates
hydraulically on all four wheels, and the
handbrake operates mechanically on the rear
wheels. Both footbrake and handbrake are
self-adjusting in use.
Ford’s anti-lock braking system (ABS) is
fitted to all models. The system monitors the
rotational speed of each roadwheel. When a
wheel begins to lock under heavy braking, the
ABS reduces the hydraulic pressure to that
wheel, so preventing it from locking. When this
happens a pulsating effect will be noticed at
the brake pedal. On some road surfaces the
tyres may squeal when braking hard even
though the wheels are not locked.
The main components of the system are the
hydraulic unit, the calipers, pads and discs,
the wheel sensors and the “brain” or control
module. The hydraulic unit contains the
elements of a traditional master cylinder, plus
an electric motor and pump, a pressure
accumulator and control valves. The pump is
the source of pressure for the system and
does away with the need for a vacuum servo.
The hydraulic circuit is split front and rear,
as is normal practice with rear-wheel drive
vehicles. In the event that the hydraulic pump
fails, unassisted braking effort is still available
on the front calipers only.
Warning lights inform the driver of low brake
fluid level, ABS failure and (on some models)
brake pad wear. The low fluid level light
doubles as a “handbrake on” light; if it
illuminates at the same time as the ABS
warning light, it warns of low hydraulic
pressure.
ABS cannot overturn the laws of physics:
stopping distances will inevitably be greater on
loose or slippery surfaces. However, the system
should allow even inexperienced drivers to
retain directional control under panic braking.
From August 1986 the following
modifications were made to the braking
system.
a)The relays differ from earlier versions.b)The hydraulic pump is constructed of iron
rather than alloy.
c)A new pressure warning switch is used.
d)The earlier high pressure rubber hose is
replaced by a steel pipe.
To overcome the problem of excessive rear
brake pad wear, Ford introduced a differential
valve which is screwed into the ABS valve
block.The valve limits the pressure applied to
the rear brake calipers and so reduces brake
pad wear. From 1988 onwards, the valve has
been fitted during production. The differential
valve can also be fitted to earlier models. Refer
to your Ford dealer for further information.
From April 1992 onwards, the models
covered in this Manual were equipped with a
new Teves MK IV anti-lock braking system
instead of the Teves MK II system fitted to the
earlier models.
The Teves MK IV system differs from the
earlier MK II system in the following ways.
a)The source of hydraulic pressure for the
system is a conventional master cylinder
and vacuum servo assembly.
b)A valve block and pump assembly is used
instead of the hydraulic control unit. The
block contains the inlet and outlet
solenoid valves that control the hydraulic
system. There are three pairs of valves,
one for each brake circuit (paragraph c).
c)The hydraulic braking system consists of
three separate circuits; one for each front
brake (which are totally independent of
each other), and a joint circuit which
operates both rear brakes.
d)A G (gravity) switch is incorporated in the
system. This is an inertia type switch and
informs the control module when the
vehicle is decelerating rapidly.
e)A Pedal Travel Sensor (PTS) is fitted to the
vacuum servo unit. The PTS informs the
control module of the position of the brake
pedal when the anti-lock sequence starts
and ensures that a constant pedal height
is maintained during the sequence.
The MK IV system operates as follows.
During normal operation the system
functions in the same way as a non-ABS
system would. During this time the three inlet
valves in the valve block are open and theoutlet valves are closed, allowing full hydraulic
pressure present in the master cylinder to act
on the main braking circuit. If the control
module receives a signal from one of the
wheel sensors and senses that a wheel is
about to lock, it closes the relevant inlet valve
in the valve block which then isolates the
brake caliper on the wheel which is about to
lock from the master cylinder, effectively
sealing in the hydraulic pressure. If the speed
of rotation of the wheel continues to decrease
at an abnormal rate, the control module will
then open the relevant outlet valve in the valve
block; this allows the fluid from the relevant
hydraulic circuit to return to the master
cylinder reservoir, releasing pressure on the
brake caliper so that the brake is released. The
pump in the valve block also operates to assist
in the quick release of pressure. Once the
speed of rotation of the wheel returns to an
acceptable rate the pump stops, the outlet
valve closes and the inlet valve is opened,
allowing the hydraulic master cylinder
pressure to return to the caliper which then
reapplies the brake. This cycle can be carried
many times a second. The solenoid valves
connected to the front calipers operate
independently, but the valve connected to the
rear calipers operates both calipers
simultaneously.
The operation of the ABS system is entirely
dependent on electrical signals. To prevent
the system responding to any inaccurate
signals, a built-in safety circuit monitors all
signals received by the control module. If an
inaccurate signal or low battery voltage is
detected, the ABS system is automatically
shut down and the warning lamp on the
instrument cluster is illuminated to inform the
driver that the ABS system is not operational.
Whilst in this state the system functions in the
same way as a non-ABS system would. If a
fault does develop in the ABS system, the car
must be taken to a Ford dealer for fault
diagnosis and repair. The system is equipped
with a diagnostic plug into which a special
diagnostic (STAR) tester can be plugged. This
allows faults to be easily traced.
1General information
10•2Braking system
Torque wrench settingsNmlbf ft
Front caliper:
To stub axle carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51 to 6138 to 45
Slide bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 to 2515 to 18
Rear caliper:
Bracket to carrier plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51 to 6138 to 45
Slide bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 to 3523 to 26
Hydraulic unit to bulkhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 to 5130 to 38
Accumulator to pump body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 to 4526 to 33
Pump mounting bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 to 95 to 7
High pressure hose banjo bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 to 2412 to 18
Reservoir mounting bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 to 63 to 4
Wheel sensor fixing bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 to 116 to 8
Vacuum servo unit retaining nuts (Teves MK IV) . . . . . . . . . . . . . . . . . .35 to 4526 to 33
Master cylinder retaining nuts (Teves MK IV) . . . . . . . . . . . . . . . . . . . . .20 to 2515 to 18
Valve block and pump assembly mounting nuts (Teves MK IV) . . . . . . .21 to 2815 to 21
procarmanuals.com

17Refit the washer, spring and spring cover.
Compress the spring and refit the circlip, then
release the spring compressor.
18Lubricate the caliper bore with clean
hydraulic fluid and fit a new piston seal.
19Reassemble the piston components.
Lubricate the contact face of the adjuster nut
with a little brake grease, then fit the adjuster
nut (with new seal), thrust bearing,
thrustwasher, wave washer and the second
thrustwasher. Secure with the circlip.
20Fit a new dust boot. The manufacturers
recommend that it be fitted to the caliper
groove and the piston fitted afterwards; it is
also possible to fit the boot to the piston first
and engage it in the caliper groove afterwards.
Either way it is a fiddly business.
21Refit the piston and screw it into the
caliper, then fit whichever lip of the dust boot
was left free (see illustration).22Renew the slide pin gaiters and apply a
little anti-seize compound to the slide pins
when reassembling the caliper to the bracket.
The splash shield is retained by the rear hub
bolts. Proceed as described in Chapter 11 for
removal and refitting of the rear hub.
1Disconnect the battery negative lead.
2Depressurise the hydraulic system by
pumping the brake pedal at least 20 times, or
until it becomes hard.
3Remove the under-dash trim on the driver’s
side.
4Remove the spring clip which secures the
hydraulic unit pushrod to the brake pedal. Also
remove the clip from the brake pedal shaft
(see illustration).
5Withdraw the brake pedal shaft towards the
left of the vehicle - through the clutch pedal,
when applicable - until the brake pedal is free.
6Remove the pedal, noting the fitted
sequence of bushes, spacers and washers.
7Refit by reversing the removal operations.
Check the correct functioning of the stop-light
and (if applicable) cruise control switches
before refitting the trim. See Chapter 13.1Disconnect the battery negative lead.
2Depressurise the hydraulic system by
pumping the brake pedal at least 20 times, or
until it becomes hard.
3Disconnect the six multi-plugs from the
hydraulic unit. They are all different, so there is
no need to label them. When a plug has a
spring clip retainer, lift the clip before pulling
out the plug. To release the pump plug, pull
back the rubber boot and the plug sleeve (see
illustrations).
4Unbolt the earth strap from the unit (see
illustration).
5Make arrangements to catch spilt hydraulic
15Hydraulic unit - removal and
refitting
14Brake pedal - removal and
refitting
13Rear disc splash shield -
removal and refitting
10•8Braking system
12.21 Dust boot fitted to caliper and piston
15.3d Disconnecting the pressure switch
multi-plug15.3e Disconnecting the pump motor plug15.4 Earth strap (arrowed) bolted to
hydraulic unit
14.4 Pushrod spring clip (A) and brake
pedal shaft clip (B)
15.3a Disconnect the valve block multi-
plug. Lift the clip and pull off the plug15.3b Disconnecting a fluid level sensor
plug15.3c Disconnecting the main valve plug
procarmanuals.com

3Press the multi-plug locking lever,
disconnect the multi-plug and unhook it from
the module. Remove the module.
4Refit by reversing the removal operations.
Make sure that the multi-plug is properly
engaged before refitting the module.
Front
1Ensure that the handbrake is applied. Raise
and support the front of the vehicle.
2From under the bonnet disconnect the
wheel sensor wiring multi-plug. Unclip the
wiring, working towards the sensor.
3Remove the securing bolt and withdraw the
sensor from the stub axle carrier (see
illustration).
4Unclip the wire from the bracket on the
strut. Remove the sensor and its wiring (see
illustration).
5Clean any rust or debris from the sensor
bore in the stub axle carrier. Pack the bore
with clean wheel bearing grease.
6Renew the O-ring on the sensor and smear
it with grease.
7Refit by reversing the removal operations.
Rear
8Chock the front wheels and release the
handbrake. Slacken the rear wheel nuts, raiseand support the rear of the vehicle and remove
the rear wheel.
9Fold the rear seat cushion forwards, remove
the side kick panel and roll back the carpet to
gain access to the sensor multi-plug (see
illustration).
10Disconnect the multi-plug, release the
floor grommet and pass the cable through the
floor.
11Unclip the handbrake cable from the
suspension lower arm.
12Remove the caliper front slide bolt and
pivot the caliper rearwards to gain access to
the sensor.
13Remove the sensor securing bolt and
withdraw the sensor.
14Clean up the sensor bore, pack it with
grease and renew the sensor O-ring.
15Refit by reversing the removal operations.
1Disconnect the battery negative terminal.
2Disconnect the wiring plug then remove the
master cylinder reservoir cap; do not invert the
cap as hydraulic fluid could enter and damage
the reservoir level switch. Syphon the
hydraulic fluid from the reservoir. Note: Do not
syphon the fluid by mouth, as it is poisonous;
use a syringe or an old poultry baster.
Alternatively, open any convenient bleed
screw in the system and gently pump the
brake pedal to expel the fluid through a plastic
tube connected to the screw.
3Wipe clean the area around the brake pipe
unions on the right-hand side of the master
cylinder and place absorbent rags beneath the
pipe unions to catch any surplus fluid.
4To disconnect the plastic low pressure
hoses, use a small flat bladed screwdriver to
carefully press the flange of the collet into the
master cylinder then pull the hoses out from
the reservoir(see illustration).Unscrew the
two union nuts and disconnect the brake
pipes from master cylinder. Plug or tape over
the pipe/hose ends and master cylinder
orifices to minimise the loss of brake fluid and
to prevent the entry of dirt into the system.
Wash off any spilt fluid immediately with cold
water.5Slacken and remove the two nuts securing
the master cylinder to the vacuum servo unit
then withdraw the unit from the engine
compartment. Remove the O-ring from the
rear of master cylinder and discard it.
6If necessary remove the reservoir from the
master cylinder and withdraw the mounting
bush seals and O-rings. Note that the master
cylinder is a sealed unit with no spare parts
available separately. Therefore if it is faulty it
must be renewed as a unit.
7Fit new mounting bush seals and O-rings to
the master cylinder and refit the reservoir (if
removed). Remove all traces of dirt from the
master cylinder and servo unit mating surfaces
and fit a new O-ring onto the master cylinder
body.
8Fit the master cylinder to the servo unit
ensuring that the pushrod enters the servo unit
bore centrally. Refit the master cylinder
mounting nuts and tighten them to the
specified torque.
9Wipe clean the brake pipe/hose unions and
the master cylinder ports. Refit the pipes to
the master cylinder ports and tighten them
securely. Push the low pressure hoses into
position and check they are securely held by
their retaining collets.
10Refill the master cylinder reservoir with
new fluid and bleed the hydraulic system
1To test the operation of the servo unit
depress the footbrake several times to
exhaust the vacuum then start the engine
whilst keeping the pedal firmly depressed. As
the engine starts there should be a noticeable
“give” in the brake pedal as the vacuum builds
up. Allow the engine to run for at least two
minutes then switch it off. If the brake pedal is
now depressed it should feel normal, but
further applications should result in the pedal
feeling firmer, with the pedal stroke decreasing
with each application.
2If the servo does not operate as described,
inspect the servo unit check valve as
describedin paragraph 3 of Section 29.28Vacuum servo unit (April 1992
on) - testing, removal and
refitting
27Master cylinder (April 1992
on) - removal and refitting
26Wheel sensors - removal and
refitting
10•12Braking system
26.3 Removing a front sensor
27.4 Disconnecting the master cylinder low
pressure hoses (A) and brake pipes (B) -
models from April 1992
26.4 Unclipping the sensor wire from the
strut26.9 Rear wheel sensor multi-plug
(arrowed)
procarmanuals.com

3If the servo unit still fails to operate
satisfactorily the fault lies within the unit itself.
Repairs to the unit are not possible.
4Remove the master cylinder (Section 27).
5Disconnect the vacuum hose from the servo
unit taking care not to displace the rubber
sealing grommet. Disconnect the wiring plug
from the Pedal Travel Sensor (PTS) which is
situated on the front of the servo.
6Working from inside the vehicle, remove the
servo pushrod retaining clip from the brake
pedal. If necessary, to improve access to the
brake pedal remove the right-hand lower facia
panel .
7Slacken and remove the four nuts securing
the servo unit to the bulkhead, then return to
the engine compartment and remove the
servo unit from the vehicle. Remove the
gasket from the rear of the unit and discard it.
8Note that the vacuum servo unit is a sealed
assembly with no spare parts available
separately. Therefore if it is faulty it must be
renewed as a unit. Inspect the vacuum servo
vacuum hose sealing grommet for damage or
deterioration and renew if necessary.
9Remove all traces of dirt from the servo unit
and bulkhead mating surfaces and fit a new
gasket onto the rear of the servo.
10Manoeuvre the servo unit into position,
ensuring that the servo unit pushrod is
correctly located with the hole in the pedal.
Refit the servo unit retaining nuts and tighten
them to the specified torque setting. Secure
the pushrod in position with the retaining clip
11Carefully refit the vacuum hose to the servo
unit taking great care not to damage or displace
the sealing grommet. Reconnect the wiring
connector to the Pedal Travel Sensor (PTS).
12Refit the master cylinder as described
above. On completion start the engine and
check the operation of the servo unit.
1Disconnect the vacuum hose from the servo
unit taking care not to displace the rubber
sealing grommet.
2To disconnect the hose from the inlet
manifold, use a small flat-bladed screwdriver
to carefully press the flange of the collet into
the manifold then pull the hose out and
remove it from the vehicle (see illustration).
3Examine the vacuum hose and sealing
grommet for damage, splits, cracks or general
deterioration and renew as necessary. Make
sure that the check valve is working correctly
by blowing through the hose from the servo
unit end. Air should flow in this direction, but
not when blown through from the inlet
manifold hose end. Renew the check valve if it
is at all suspect.
4Ensure that the check valve is fitted the
correct way around then push the connector
into the manifold and check that it is securely
held by the retaining collet.5Carefully refit the vacuum hose to the servo
unit taking great care not to damage or
displace the sealing grommet.
6On completion start the engine and check
the operation of the servo unit.
1Disconnect the battery negative terminal.
2Carry out the operations described in
paragraphs 2 to 4 of Section 27.
3Remove all traces of dirt from the exterior of
the block then disconnect the motor and valve
block wiring plugs and free the diagnostic test
wiring plug from the mounting bracket.
4Position some absorbent rag beneath the
valve block then unscrew the three brake pipe
outlet unions whilst avoiding getting surplus
brake fluid in the wiring plugs. Plug the block
ports and pipe ends to minimise the loss of
fluid and prevent the entry of dirt into the
system. Wash off any spilt fluid immediately
with cold water.
5Slacken and remove the three valve block
and pump assembly mounting nuts and
remove the unit from the engine compartment.
6Note that the valve block and pump
assembly is a sealed unit and cannot be
overhauled. If it is faulty it must be renewed.
Note that if the low pressure hoses are
disconnected from the assembly, great care
must be taken when reconnecting them to
ensure that the valve block filter is not
damaged.
7Manoeuvre the assembly into position then
refit the mounting nuts and tighten them by
hand only. Taking into account the amount of
movement in the mounting rubbers, position
the assembly so that it will not contact the
mounting bracket then tighten the mounting
nuts to the specified torque setting.
8Remove the plugs then reconnect the outlet
pipes to the assembly and tighten the union
nuts securely.
9Ensure that the wiring is correctly routed
and reconnect the wiring plugs to the valve
block and pump assembly. Refit thediagnostic test wiring connector to the
mounting bracket.
10Wipe clean the brake pipe/hose unions
and the master cylinder ports. Refit the pipes
to the master cylinder ports and securely
tighten the union nuts. Push the low pressure
hoses into position and check they are
securely held by their retaining collets.
11Reconnect the battery negative terminal,
then fill the master cylinder and bleed the
complete hydraulic system using the
information given earlier in this Section.
1The anti-lock braking control module is
located behind the glovebox. To remove the
module first disconnect the battery negative
terminal.
2Open up the glovebox then, using a small
flat-bladed screwdriver, carefully prise up the
retaining clip and disconnect the glovebox
hinge arms. Withdraw the glovebox assembly
from the facia noting the plastic bushes which
are fitted to the glovebox pivot points.
3Lift the wiring plug retaining clip and
disconnect the plug to the control module. The
ABS module is the upper of the two control
modules mounted horizontally.
4Release the retaining clips and slide the
module out of the mounting bracket (see
illustration).
5Commence refitting by sliding the module
into the mounting bracket until it clips into
position.
6Connect the wiring connector to the
module, ensuring that the wiring is correctly
routed, and secure it in position with the
retaining clip.
7Ensure that the plastic bushes are correctly
fitted to the glovebox then refit the glovebox
assembly, locating the pivots in the correct
locations on the facia panel. Clip the hinge
arms onto the glovebox and check that it
opens and closes smoothly.
8Reconnect the battery negative terminal.
31Control module (April 1992
on) - removal and refitting
30Valve block and pump
assembly (April 1992 on) -
removal and refitting
29 Vacuum servo unit check
valve (April 1992 on) -
removal, testing and refitting
Braking system 10•13
10
29.2 Disconnecting brake servo vacuum
hose from the inlet manifold (DOHC engine
shown)31.4 Removing the ABS control module -
models from April 1992
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1Disconnect the battery negative terminal
then deplete the vacuum in the braking system
servo unit by depressing the footbrake several
times.
2Disconnect the wiring plug from the sensor
which is situated on the front of the vacuum
servo unit.
3Using a small flat-bladed screwdriver, prise
off the retaining circlip, then carefully withdraw
the sensor from the servo unit taking great
care not to displace the sealing O-ring (see
illustration).Note:If the O-ring becomes
displaced and falls into the servo unit it must
be recovered before the sensor is refitted.
4If the sensor is to be renewed, ensure that
the tip of the new sensor pushrod is the same
colour as that of the original.
5Fit a new O-ring to the sensor and apply asmear of clean engine oil to it to ease
installation.
6Ease the sensor into position in the servo
unit, taking care not to displace the O-ring,
and secure it in position with the circlip.
7Reconnect the sensor wiring connector and
the battery negative terminal.1Remove the driver’s seat as described in
Chapter 12.
2Carefully peel back the carpet from
immediately behind the crossmember to
reveal the G switch.
3Disconnect the wiring connector then undo
the two retaining screws and remove the
switch from the vehicle.
4Refitting is a reversal of the removal
procedure.
33G (gravity) switch (April 1992
on) - removal and refitting32Pedal Travel Sensor (PTS)
(April 1992 on) - removal and
refitting
10•14Braking system
32.3 Removing the Pedal Travel Sensor
(PTS) circlip - models from April 1992
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Chapter 11
Steering and suspension
Front anti-roll bar - removal and refitting . . . . . . . . . . . . . . . . . . . . .19
Front anti-roll bar bushes - renewal . . . . . . . . . . . . . . . . . . . . . . . . .20
Front stub axle carrier - removal and refitting . . . . . . . . . . . . . . . . .16
Front suspension crossmember - removal and refitting . . . . . . . . .15
Front suspension lower arm - removal, overhaul and refitting . . . . .18
Front suspension strut - dismantling and reassembly . . . . . . . . . . .22
Front suspension strut - removal and refitting . . . . . . . . . . . . . . . . .21
Front wheel alignment - checking and adjusting . . . . . . . . . . . . . . .14
Front wheel bearings - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Power steering fluid - level check and bleeding . . . . . . . . . . . . . . . . .2
Power steering hoses - removal and refitting . . . . . . . . . . . . . . . . . .12
Power steering pump - removal and refitting . . . . . . . . . . . . . . . . . .11
Power steering pump drivebelt - removal, refitting and tensioning .10
Rear anti-roll bar - removal and refitting . . . . . . . . . . . . . . . . . . . . .30
Rear crossmember insulator - removal and refitting . . . . . . . . . . . .28
Rear hub - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Rear shock absorber - removal and refitting . . . . . . . . . . . . . . . . . .31Rear spring - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . .27
Rear suspension and final drive assembly - removal and refitting . .23
Rear suspension lower arm - removal and refitting . . . . . . . . . . . . .29
Rear wheel bearings - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Ride height control compressor - removal and refitting . . . . . . . . . .33
Ride height control sensor - removal and refitting . . . . . . . . . . . . . .34
Ride height control system - general information . . . . . . . . . . . . . .32
Steering column - removal and refitting . . . . . . . . . . . . . . . . . . . . . . .7
Steering column lock - removal and refitting . . . . . . . . . . . . . . . . . . .8
Steering gear - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . .3
Steering intermediate shaft and flexible coupling - removal and
refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Steering rack bellows - renewal in vehicle . . . . . . . . . . . . . . . . . . . . .4
Steering wheel - centralising . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Steering wheel - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . .5
Track rod end - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . .13
Wheel stud - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
General
Suspension type:
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Independent, MacPherson struts and anti-roll bar
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Independent, semi-trailing arms and anti-roll bar; ride height
control optionally available
Steering type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rack and pinion, power-assisted on some models
Front wheel alignment
Toe:
Setting value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ± 1 mm (0.08 ± 0.04 in) toe-in
Tolerance in service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 mm (0.02 in) toe-out to 4.5 mm (0.18 in) toe-in
Castor :
SOHC and 2.8 litre models:
Standard, without ride height control . . . . . . . . . . . . . . . . . . . . . . . + 1°51’ ± 1°00’
Standard, with ride height control . . . . . . . . . . . . . . . . . . . . . . . . . . + 1°58’ ± 1°00’
Heavy duty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 1°46’ ± 1°00’
DOHC carburettor and low series fuel-injection models . . . . . . . . . . + 2°27’ ± 1°00’
DOHC high series models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 2°26’± 1°00’
2.4 litre:
low series models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 2°17’ ± 1°00’
high series models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 2°50’ ± 1°00’
2.9 litre models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 2°22’ ± 1°00’
11•1
Easy,suitable for
novice with little
experienceFairly easy,suitable
for beginner with
some experienceFairly difficult,
suitable for competent
DIY mechanicDifficult,suitable for
experienced DIY
mechanicVery difficult,
suitable for expert
DIY or professional
Degrees of difficulty
Specifications Contents
11
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