1988 FIAT TEMPRA brake sensor

Fluid levels (if included) are monitored by LEDs f, o and
p, indicating the levels of the fluid reservoirs.
A red LED illuminates at the position on the check panel
corresponding to a side door or a hatchback/tailgate
that is not properly closed.
SIDE AND TAIL LIGHTS
When the side and tail lights are turned on, the check
panel monitors the light bulbs, fuses and circuits.
• LED g monitors the front side lights.
• LED i monitors the tail lights.
If one of the two fuses protecting the following bulbs
blows, LEDs g, i, and m illuminate.
NUMBER PLATE LIGHTS
• LED m indicates when one or both of the number
plate light bulbs have burnt out.
REAR FOG LIGHTS
• When the fog-guard lights are turned on, LED h
monitors the light bulbs.
• When the fuse blows or a circuit malfunction occurs,
LED h illuminates, but not the panel indicator.
STOP LIGHTS
If one or both stop lights burn out, the fuse blows or a
circuit malfunction occurs, LED I or n illuminates when
braking.
• LED n monitors the left stop light.
• LED I monitors the right stop light.
If both bulbs burn out at the same time or brake pedal
switch malfunction occurs, both LEDs I and n
illuminate.
ENGINE OIL LEVEL
• LED f illuminates when the engine oil level is low (key
at MAR,engine not running).
The oil level monitoring system does not operate when
the engine is running. If the oil level warning LED
illuminates when driving, a circuit sensor malfunction
has occurred.
When starting the car on a hill or within 10 minutes of
switching off the engine the warning light may
illuminate (event will be stored in system memory). Start
the engine again on level ground to ensure the oil level
is sufficient.
COOLANT
A low coolant level is indicated by LED o (key at MAR).
The LED also illuminates when a sensor or circuit
malfunction occurs.
WINDSCREEN AND REAR SCREEN WASH LEVELS
• LED p illuminates (key at MAR) when the level in the
windscreen or rear screen wash reservoirs are low.
• The LED also indicates when a circuit or sensor
malfunction occurs.
• 5. HE ATI IMG AMD VENTILATION
CONTROLS
5A. Air volume control
-
Adjust
the dynamic air flow (fan OFF)
by turning the knob up to I.
Continue turning the knob to
the right to increase the air
flow (i.e. fan ON).
5B. Air temperature control -
The temperature will increase
the further you turn the air
temperature knob to the right
(red zone).
HEATING
HEAT DISTRIBUTION
With the air temperature
knob (56) turned to the
red zone and the air
volume control knob (5A)
turned to the desired fan
speed, turn the air
distribution knob (5C) to:
• 2
-
In sunny, cold weather.
• 3
-
For heating to footwell vents.
• 4
-
Demist the windows.
• Also, turn the air volume control knob (5A) to level II
or III.
VENTILATION
• Turn the air distribution control to 5.
• Turn the air temperature adjustment knob fully anti-
clockwise to the blue zone.
• Turn the air volume control knob to the desired fan
speed.
• Turn the air distribution control to 5.
When the car is moving the volume of the air entering
the passenger compartment can be reduced by turning
the fan knob to the left of 1.
DUAL TEMPERATURE
• Turn the air temperature adjustment knob to an
intermediate position.
• Turn the air distribution control knob to 2.
The temperature decreases the
further you turn the temperature control knob to the
left (blue zone).
Warmer air is delivered to the footwell vents and cooler
air to the dashboard vents.

Thanks
are due to the excellent, knowledgeable and helpful staff at FIAT main dealers, Ryauto of Amblecote, in the West
Midlands for supplying vehicles and for their assistance with this chapter. In particular, thanks are due to the efficient Maurice
Hough, Service Manager, the experienced Foreman, Tony Morris, and young demon mechanic, Matthew Worsfold.
Some of the suggested inspection/replacement intervals may not correspond to those shown in the original handbook. The suggested
schedule, based on FIAT'S recommendations, takes into account the age of the vehicle and the annual MoT test in the UK.
In practice, because of the split between (mainly) 12 month/9,000 mile and 18 month/13,500 mile intervals, you will need to
service your Tipo or Tempra at most, if not every, 6 month interval.
IMPORTANT NOTE: Each service should be carried out at EITHER the recommended mileage OR the recommended time
interval, whichever comes first.
SERVICE INTERVAL CHART
SERVICE INTERVALS: KEY
A
-
Every week, or before every long journey. F
-
Every 3 years or 27,000 miles.
B
-
Every 6 months, or 4,500 miles. G
-
Every 4 years or 36,000 miles.
C - Every 12 months, or 9,000 miles. H
-
Every 6 years or 54,000 miles.
I
-
Every 63,000 miles. D - Every 18 months , or 13,500 miles.
H
-
Every 6 years or 54,000 miles.
I
-
Every 63,000 miles.
E
-
Every 2 years or 18,000 miles J
-
Every 72,000 miles.
PART A: REGULAR CHECKS
SERVICE INTERVALS
Job 1. Engine oil
-
check level A
Job 2. Cooling system
-
check level A
Job 3. Brake/clutch fluid
-
check level A
Job 4. Battery
-
check electrolyte level A
Job 5. Screen washer fluid
-
check level A
Job 6. Tyres
-
check pressures and
condition (road wheels) A
Job 7. Check lights/change bulbs A
PART B: THE ENGINE AND
COOLING SYSTEM
Job 8
-
Petrol. Change engine oil and filter C
Job 8
-
Diesel. Change engine oil and filter B
Job 9. Check crankcase ventilation H
Job 10. Check/adjust valve clearances D
Job 11. Check camshaft timing belt F
Job 12. Change camshaft timing belt I
Job 13. Check cooling system C
Job 14. Change engine coolant E
PART C: TRANSMISSION
Job 15. Check manual gearbox oil level C
Job 16. Change manual gearbox oil J
Job 17. Check auto, transmission fluid level C
Job 18. Change auto, transmission
fluid and filter F
Job 19. Check driveshaft gaiters C
Job 20. Check/adjust clutch C
Job 21. Check auto, transmission selector
cable E
PART D: IGNITION AND ELECTRICS
SERVICE INTERVALS
Job 22. Check/clean/gap spark plugs B
Job 23. Change spark plugs D
Job 24. Check/clean HT leads and
distributor cap C
Job 25. Check ignition timing C
Job 26. Check/adjust drive belt/s D
Job 27. Check electric fan operation C
Job 28. Run diagnostic ignition/injection test D
PART E: FUEL AND EXHAUST
Job 29. Check fuel pipes for leaks C
Job 30. Change petrol air filter D
Job 31. Change diesel air filter C
Job 32. Change petrol fuel filter F
Job 33. Drain diesel fuel filter B
Job 34. Change diesel fuel filter C
Job 35. Check/adjust petrol engine idle
and emissions C
Job 36. Check emission/evaporative/EGR systems F
Job 37. Check Lambda sensor F
Job 38. Check/adjust diesel idle speed C
Job 39. Check/adjust diesel injection timing E
Job 40. Check inlet and exhaust manifold fixings D
Job 41. Check exhaust system C
PART F: STEERING AND
SUSPENSION
Job 42. Check front wheel bearings C
Job 43. Check front suspension C
Job 44. Check steering column, joints and rack C
Job 45. Check power steering fluid C
Job 46. Check rear wheel bearings C
Job 47. Check rear suspension C
Job 48. Check wheel bolts for tightness C

49H. ...and push out the nylon bush (arrowed). Reassemble
on the new pad and reattach the wire.
IMPORTANT NOTE: After fitting the pads, apply the
brakes firmly several times to adjust them.
• Job 50. Check rear brakes.
SAFETY FIRST!
Read SAFETY FIRST at the start of Job 49 before
proceeding!
GENERAL. The majority of Tipo/Tempra models are fitted with
rear drum-type rear brakes, but models with ABS anti-lock
braking have a disc-and-caliper arrangement instead.
Slacken the wheel bolts, raise the wheel, remove it and
support the car with an axle stand. Make sure that the wheels
remaining on the ground are chocked in both directions and
that the handbrake is off.
DRUM REAR BRAKES
If the drum
sticks,
try:
• screwing a pair of
bolts

into the two threaded
holes in the drum. Evenly
tightening the bolts will force the drum off the
shoes.

• tapping carefully around the drum with a hide
mallet to help loosen it.
s Vn order to fit new pads,
r> - the caliper piston must be
pushed back into the bore.
• Use an old battery hydrometer to draw about half
of the fluid from the master cylinder.
• Push the piston back into the caliper, using a G-
clamp.
• Keep an eye on the master cylinder so that it
doesn't overflow as fluid is pushed back up the pipe.
IMPORTANT NOTE: Be very sparing or grease could
migrate to the friction linings!
WEAR SENSORS I I There are certain essential checks you
should carry out for yourself, with brake
pads removed:
• Look for any obvious grooves worn into the disc.
Slight undulations are acceptable, but anything worse
and the disc should be replaced.
• Look and feel for any wear-ridge on the outer edges
of the disc. The depth will give an indication of wear.
• Check for corrosion of the disc surface. If any is
found, the brake caliper is probably faulty, and needs
checking.
• If any surface flaking is found on either side of the
disc, replace them both.
• If you are not certain whether any wear is acceptable,
ask your specialist or FIAT dealer to check.
FACT FILE: BRAKE DISC WEAR
SYMPTOMS
Before reassembling the brake, check the condition of the
brake caliper. Have an assistant VERY SLOWLY AND GENTLY
apply pressure to the brake pedal while you watch the piston
(see illustration 49B, part
8),
which should move outwards. If
it doesn't easily move, it is seized and the caliper should be
replaced. DO NOT allow the piston to project more than 10
mm or it may be forced from the caliper
-
use a G-clamp as an
'end stop'.
49F. Before
fitting the pads,
put a light smear
of brake grease
(NOT ordinary
grease) on the
pads' metal
backplates at the
points shown.
49G. If these are fitted, the contact has to be transferred from
the old backing plate to the new. Pull off the wire, push out
the brass pin...
49E. Check inside
the caliper housing
for signs of
corrosion. If any is
found, or the seal is
damaged, the caliper
should be exchanged
for a new or
overhauled unit from
your FIAT dealership.
Examine the piston's protective gaiter (see illustration 49B,
part 9) for splitting and fluid leaks. This one is in poor
condition and the caliper requires immediate replacement.

SAFETY FIRST! • Step 7:
Disconnect the
electrical leads from
the following: the
inlet manifold
• Step 2: Disconnect both battery leads, negative
terminal first.
Q Step 3: Drain the cooling system and depressurise the
fuel system, if yours is a fuel injection engine
-
see PART
F:

FUEL AND EXHAUST
• Step 6B:
INJECTION
ENGINES.
Disconnect the
engine end of the
accelerator cable (a),
the idle speed check
actuator (b) and the
injector supply (c).
• Step 8: Detach
the exhaust
downpipe from the
manifold.
• Step 9: Remove
the dipstick
(arrowed) and the
cylinder head
coolant temperature
sensor (arrowed).
• Step 10: Also remove all the HT leads (along with the
distributor cap). Place them to one side.
• Step 11: Undo the brake servo hose from the manifold.
Q Step 4: Remove the air cleaner by releasing the spring
clips (a) at the front of the unit and the screw on the top face
(b) and disconnect the hoses
Remove the oil vapour
recovery pipe clips from beneath the rear of the housing, once
it is free to lift up.
Q Step 5: Disconnect the crankcase vent hose from the
cylinder head and the inlet tract or the SPI injector unit, as
appropriate and blank off with a bolt of suitable size.
• Step 6A:
CARBURETTOR
ENGINES.
Disconnect the
engine end of the
accelerator cable
from its idler and
the choke cable
from its mounting.
Q Step 12: Remove the
water hoses connected to
the inlet manifold and
thermostat.
• Step 13 A:
CARBURETTOR
ENGINES. Disconnect the
fuel pipe from the carbu-
rettor and both pipes
from the fuel pump.
(Label both the pipes and
stubs so that they will be
reconnected the
right way round.)
• Step 13B:
INJECTION
ENGINES.
Disconnect the fuel
supply and return
hoses from the
injector unit housing
(a). Plug the ends.
• Step 14A: CARBURETTOR ENGINES. Disconnect the
distributor vacuum pipe and oil vapour pipes from the carbu-
rettor.
vacuum sensor
(arrowed), the
manifold coolant
temperature sensors
(arrowed) and the
throttle position
switch and any
other leads which your engine may have.

• Step 16: Unbolt

the
lower suspension

arms
(arrowed)...
• Step 17:

...remove
the

drive
shaft

assemblies
from
their housings in

the
gearbox...
• Step 15: Undo

and
remove the
suspension strut to

stub axle
nuts and

bolts
(arrowed
-
two

each side).
Pull the

tops
of the stub axles

clear
of the struts.
• Step 12:
Disconnect both
trackrod ends from

their
steering arms.
• Step 13:

Remove
the fixing

bands
(arrowed) on

the
protective boots

on the
inner ends of

the
drive-shafts.
• Step 14: Unplug

the brake
pad wear

sensors
(a) if fitted.
Unbolt (see arrows)

the
complete caliper
support bracket.

Hang
each caliper

and
bracket in their
wheelarches, taking

care
not to strain or

damage
the hydraulic
hoses.
• Step 21:
Remove the nuts (1)
holding the centre
support to the
gearbox, and those
(2) holding the
flywheel shield.
• Step 22:
Remove the centre
support/mounting (a)
and the flywheel
shield (b).
• Step 18: and
remove each
complete front hub,
drive-shaft and brake
disc assembly.
Job 8-18
Q Step 20: Support the power unit, just keeping its weight
off the mountings.
E3 INSIDE INFORMATION! This can be done from under-
neath with a trolley jack and piece of wood on its pad to
prevent damage
-
or by means of a hook from above. B
• Step 19:
Disconnect the gear
selector linkage and
place it out of the
way, in the lower
part of the engine
compartment.
Job 8-19
Job 8-13
expert22 fl/ia http://rutracker.org
I

Job 17. Diesel engine.
Valve clearances - adjustment.
D INSIDE INFORMATION! After carrying out Job 16,
valve clearance measurement and adjustment is now
needed. Both measurement and shim replacement are
carried out in the same manner as for the petrol engine

(.Job
7), so refer to this and also to Chapter 3, Facts
and Figures for specifications. B
Job 18. Diesel engine - removal.
moving parts with engine oil during assembly. See Chapter 3,

Facts
and Figures for specified tightening torques.
luei suppiy diiu leium pipe;>
at the injection pump...
• Step 9: ...and the stop
control supply cable. Also
disconnect the cable from
the injection pump hydraulic
advance control sensor and
the alternator cables.
• Step 10:
Disconnect the oil
feed and return
pipes between the
thermostatic valve
and the radiator
and tie clear.

I

This should
be read in connection with Job 8
Q INSIDE INFORMATION! • The turbo and non-turbo
diesel engines are essentially similar.
• The under-bonnet scene is in some ways different
because of the extra plumbing required when a turbo is
fitted.
• Locations and shapes of various items may differ, or
not exist at all on the non-turbo unit.
• As most complexity is found with the turbo engine,

I

the
following illustrations are mainly of this version.
• The power units are removed from under the car,
therefore make sure you can raise the car enough to
achieve this. Support the car firmly and safely on axle
stands. D
Q Step 1: Disconnect the negative lead from the battery

and drain
the cooling system. Q Step 2: Remove the bonnet lid.
• Step 3: Drain the transmission oil.
Q Step 4: Disconnect and remove all pipes and hoses.
Q Step 5: Undo all electrical connection and label them

with masking
tape. Write matching numbers on each male

and female
connection to assist reconnection, later.
Q Step 6: Disconnect the power steering pump pipes

(where fitted),
catching any spilt fluid and tie them clear. See

Job 14.

• Step 7: Part the
connection for the

electronic
speedometer
magnetic impulse

generator
(when fitted).
Q Step 11: Disconnect the clutch cable, adjacent earth lead
and reversing light switch other cable connection from the top
of the gearbox.
• Step 12: Disconnect the leads from the oil pressure
warning light from the oil filter mounting, and the oil level
warning light switch.
• Step 13: From under the car, remove the exhaust front
section from the manifold and from its support brackets.
O Step 14: Remove the front road wheels and the access
panel from each wheel housing.
• Step 15: Remove the brake pad wear sensor cables,
when fitted.
Q Step 16A: On the turbo version, undo the six 'Allen'
screws securing the inboard end of each drive-shaft. Undo the
two pinch bolts that fix each stub axle to the suspension struts
and pull them clear. Ease the drive-shafts clear of the trans-
mission casing

-
take care
not to
damage the
protective
boots.

• Step 8:
Support the
axle beam with
the jack and
undo the
mounting bolts
(arrowed and
indicated by
operator with
socket bar).
Lower the
complete unit
from the car.
IMPORTANT NOTE: In this shot, the top shock absorber
mountings have been disconnected, leaving the shock
absorber fitted to the suspension and the coil springs in
place. We recommend 'our' approach, covered in Step 7!
• Step 9: Undo the bolts securing the anti-roll bar and
remove it. (See Job 9.) Disconnect the brake pipes from the
side to be worked on and remove the brake drum.
Q Step 10: Remove the hub cap (see illustration Job 1-1D,
part 13) by carefully tapping and levering with a screwdriver.
• Step 11: Undo the hub nut (see illustration Job 1-1D,
part
10).

PART H: BRAKES
• Step 12: A special tool
(1857508000) or a VERY
strong Allen key (a) will be
required to reach into the
hub (b), and plenty of
leverage!
Q Step 13: Remove the
hub and inspect the bearing
for roughness or noise or
roughness when turning it by hand.
E3 INSIDE INFORMATION! The bearing is lubricated for
life and is only supplied as an assembly with the hub. B
• Step 14: Inspect the stub axle pin (see illustration Job
1-

1D, part
12)
for any signs of damage or distortion. Replace if
in doubt.
Q Step 15: Refitting is the reverse of removal but note the
following:
• See Chapter
3,
Facts and Figures for all tightening
torques as you progress through the assembling.
• Use new hub nuts and fully tighten once the suspension is
mounted to give you stability.
• Refer to PART H: BRAKES when refitting the brake parts
and bleeding the brakes.
PART H: Contents %
Job 1. Understanding Tipo/Tempra brakes.
Job 2. Front brake pads
-
replacement.
Job 3. Front brake caliper
-
replacement.
Job 4. Front brake disc
-
replacement.
Job 5. Rear brake shoes
-
replacement.
Job 6. Rear wheel cylinder
-
replacement.
Job 7. Rear brake disc pads
-
replacement.
Job 8. Rear brake caliper
-
replacement.
Job 9. Rear brake disc
-
replacement.
Job 10. Master cylinder
-
replacement.
Job 11. Servo check
-
remove and refit.
Job 12. Pressure regulating valve, non-ABS system -
replacement and adjustment.
Job 13. Pressure regulating valves, ABS system
-
replacement
and adjustment.
Job 14. RPM sensors, ABS systems
-
replacement.
Job 15. Flexible hoses
-
replacement.
Job 16. Metal pipes
-
replacement.
Job 17. Brake bleeding.
Job 18. Handbrake cables
-
replacement.
Job 1. Understanding
Tipo/Tempra brakes.
• Point
1
A: This is the standard disc/drum system used on
cars without anti-lock brakes, shown here in left hand drive
form.
1 - fluid reservoir and master cylinder 2 - servo 3
-
front disc brakes
4 - handbrake lever 5 - rear drum brakes 6
-
four way pipe union 7 - load proportioning/ pressure limiting valve
Job 1-1A
1 - front disc brakes 2
-
front flywheel 3 - front wheel RPM sensors 4 - hydraulic control unit 5 - brake light switch 6 - device failure warning light switch
7 - rear flywheel 8 - main control relay with excess voltage protection 9 - electronic control unit 10 - rear disc brakes 11 - rear wheel RPM sensors 12 - load proportioning/pressure limiting valve Job
1-1B

Q Point 1B: This version shows the anti-lock braking system
and has discs replacing drums at the rear. One of two makes
is used
-
Lucas or Bosch
-
and both are similar in design.
Shown here is the Bosch ABS system in left hand drive form.
Apart from checking that the hydraulic and electrical connec-
tions are sound, anti-lock brakes are not repairable. Individual
components and friction materials can be replaced but
otherwise, you should consult your FIAT dealer for diagnosis
of system faults (with specialised equipment) and rectification.
SPECIAL NOTES: • Unplug the electronic control unit
(ECU) before any electric welding is carried out.
• When oven drying paint, the ECU cannot withstand 95
degrees Celsius for more than a few minutes or 85
degrees Celsius for more than 2 hours.
• Disconnect the battery earth before removing the
hydraulic control.
• When reconnecting the battery, make sure the connec-
tions are firm and sound.
Q INSIDE INFORMATION: When disconnecting brake
pipes or hoses, it is essential to minimise brake fluid loss.
This can be done by unscrewing the master cylinder
reservoir cap, laying a sheet of plastic across the opening,
and refitting the cap. This will prevent atmospheric
pressure from pushing the fluid out of opened lines. D
Job 2. Front brake pads -
replacement.
Changing and checking the Tipo's and Tempra's brake pads
are virtually identical jobs. See Chapter 5, Servicing Your
Car, pages 59 and 60
Job 3. Front brake caliper -
replacement.
Carry out this work with reference to Chapter 5, Servicing
Your Car, Job 49, pages 59 and 60.
Q Step 1: Slacken the front road wheels, jack up the car
and support on axle stands. Remove the wheels.
Q Step 2: Unplug
the brake pad wear
sensor (a
-
arrowed)
and ease the fluid
pipe/hose from the
bracket (b
-
arrowed)

on
the shock absorber
leg.
Q Step 3: Undo the brake fluid pipe union from the caliper
body and plug the end to prevent too much fluid loss.
Q Step 4: Undo the bolts and remove the caliper.
D INSIDE INFORMATION! The caliper securing bolts must
always be replace by new FIAT ones when loosened or
removed. They are of a special self-locking type. B
Q Step 5: Refit in reverse order and bleed the brakes, see
Job 17
Job 4. Front brake disc -
replacement.
Q Step 1: Carry out Steps 1 to 4 in Job 3.
• Step 2:
Undo the
securing bolts
and remove
the caliper
support
bracket.
• Step 3:
Undo the disc
fixing bolts
and withdraw
the brake
disc.
Q Step 4: Refit the remaining parts in reverse order of
removal. See Chapter 5, Servicing Your Car.
Carry out this work with reference to Chapter 5, Servicing
Your Car, Job 50, pages 60 and 61.
Job 5. Rear brake shoes -
replacement.
H INSIDE INFORMATION! It often helps to work on one
side at a time, completing all the work on that side of
the car and using the other side as a reference before
you start dismantling it. Q
• Before refitting the disc,
ensure that the mating
surfaces
-
hub to disc, are
clean and undamaged.
• Spin the disc to be sure there is no 'run out' before
proceeding further.
Job 4-2