
REF•13Glossary of Technical Terms
Catalytic converterA silencer-like device in
the exhaust system which converts certain
pollutants in the exhaust gases into less
harmful substances.
CirclipA ring-shaped clip used to prevent
endwise movement of cylindrical parts and
shafts. An internal circlip is installed in a
groove in a housing; an external circlip fits into
a groove on the outside of a cylindrical piece
such as a shaft.
ClearanceThe amount of space between
two parts. For example, between a piston and
a cylinder, between a bearing and a journal,
etc.
Coil springA spiral of elastic steel found in
various sizes throughout a vehicle, for
example as a springing medium in the
suspension and in the valve train.
CompressionReduction in volume, and
increase in pressure and temperature, of a
gas, caused by squeezing it into a smaller
space.
Compression ratioThe relationship between
cylinder volume when the piston is at top
dead centre and cylinder volume when the
piston is at bottom dead centre.
Constant velocity (CV) jointA type of
universal joint that cancels out vibrations
caused by driving power being transmitted
through an angle.
Core plugA disc or cup-shaped metal device
inserted in a hole in a casting through which
core was removed when the casting was
formed. Also known as a freeze plug or
expansion plug.
CrankcaseThe lower part of the engine
block in which the crankshaft rotates.
CrankshaftThe main rotating member, or
shaft, running the length of the crankcase,
with offset “throws” to which the connecting
rods are attached.
Crocodile clipSee Alligator clipDDiagnostic codeCode numbers obtained by
accessing the diagnostic mode of an engine
management computer. This code can be
used to determine the area in the system
where a malfunction may be located.
Disc brakeA brake design incorporating a
rotating disc onto which brake pads are
squeezed. The resulting friction converts the
energy of a moving vehicle into heat.
Double-overhead cam (DOHC)An engine
that uses two overhead camshafts, usually
one for the intake valves and one for the
exhaust valves.
Drivebelt(s)The belt(s) used to drive
accessories such as the alternator, water
pump, power steering pump, air conditioning
compressor, etc. off the crankshaft pulley.
DriveshaftAny shaft used to transmit
motion. Commonly used when referring to the
axleshafts on a front wheel drive vehicle.
Drum brakeA type of brake using a drum-
shaped metal cylinder attached to the inner
surface of the wheel. When the brake pedal is
pressed, curved brake shoes with friction
linings press against the inside of the drum to
slow or stop the vehicle.
EEGR valveA valve used to introduce exhaust
gases into the intake air stream.
Electronic control unit (ECU)A computer
which controls (for instance) ignition and fuel
injection systems, or an anti-lock braking
system. For more information refer to the
Haynes Automotive Electrical and Electronic
Systems Manual.
Electronic Fuel Injection (EFI)A computer
controlled fuel system that distributes fuel
through an injector located in each intake port
of the engine.
Emergency brakeA braking system,
independent of the main hydraulic system,
that can be used to slow or stop the vehicle if
the primary brakes fail, or to hold the vehicle
stationary even though the brake pedal isn’t
depressed. It usually consists of a hand lever
that actuates either front or rear brakes
mechanically through a series of cables and
linkages. Also known as a handbrake or
parking brake.EndfloatThe amount of lengthwise
movement between two parts. As applied to a
crankshaft, the distance that the crankshaft
can move forward and back in the cylinder
block.
Engine management system (EMS)A
computer controlled system which manages
the fuel injection and the ignition systems in
an integrated fashion.
Exhaust manifoldA part with several
passages through which exhaust gases leave
the engine combustion chambers and enter
the exhaust pipe.
F
Fan clutchA viscous (fluid) drive coupling
device which permits variable engine fan
speeds in relation to engine speeds.
Feeler bladeA thin strip or blade of hardened
steel, ground to an exact thickness, used to
check or measure clearances between parts.
Firing orderThe order in which the engine
cylinders fire, or deliver their power strokes,
beginning with the number one cylinder.
Flywheel A heavy spinning wheel in which
energy is absorbed and stored by means of
momentum. On cars, the flywheel is attached
to the crankshaft to smooth out firing
impulses.
Free playThe amount of travel before any
action takes place. The “looseness” in a
linkage, or an assembly of parts, between the
initial application of force and actual
movement. For example, the distance the
brake pedal moves before the pistons in the
master cylinder are actuated.
FuseAn electrical device which protects a
circuit against accidental overload. The typical
fuse contains a soft piece of metal which is
calibrated to melt at a predetermined current
flow (expressed as amps) and break the
circuit.
Fusible linkA circuit protection device
consisting of a conductor surrounded by
heat-resistant insulation. The conductor is
smaller than the wire it protects, so it acts as
the weakest link in the circuit. Unlike a blown
fuse, a failed fusible link must frequently be
cut from the wire for replacement.Catalytic converter
Crankshaft assembly
Accessory drivebelts
Feeler blade
procarmanuals.com

A
ABS module - 10•11
Accelerator pump diaphragm renewal - 4•12
Accessory shops - 0•8
Acknowledgements - 0•4
Aerial pre-amplifier - 13•22
Air bags - 0•5
Air charge temperature sensor - 5•12
Air cleaner - 1•16, 4•4
Air conditioner - 1•14, 1•15, 3•2, 3•9
Air temperature sensor - 13•18
Alarm signal buzzer - 13•23
Alarm system horn - 13•23
Alternator - 3•7, 5•4
Anti-roll bar - 11•9, 11•12
Anti-theft alarm - 13•22, 13•23
Antifreeze mixture - 3•2
Asbestos - 0•5
Ashtray light - 13•8
Automatic choke - 1•16, 4•10, 4•12
Automatic transmission- 1•11, 1•15, 2B•6,
2B•7, 7B•1et seq, REF•8
Automatic transmission brake band
adjustment - 1•19
Automatic transmission selector light - 13•9
Auxiliary drivebelt - 1•12
Auxiliary driving light - 13•4, 13•6
Auxiliary shaft - 2A•9, 2A•14, 2A•16
Auxiliary warning system components - 13•18
B
Backrests - 12•19, 12•18
Battery - 0•5, 1•8, 1•13, 5•3, 5•4
Battery will not hold a charge for more than
a few days - REF•11
Bleeding the brakes - 10•3
Bleeding the power steering - 11•3
Body corrosion - 0•14
Body damage - 12•2, 12•4
Body electrical system- 13•1et seq
Bodywork and fittings- 12•1et seq
Bodywork repairs - 12•3
Bonnet - 12•4, 12•9
Bonnet release cable - 12•6
Booster battery (jump) starting - 0•10
Boot lid - 12•5
Boot lid lock barrel - 12•7
Brake band adjustment - 1•19, 7B•3
Brake fluid - 1•7, 1•19
Brake hydraulic system - 10•3
Brake pedal effort high to stop vehicle - REF•9
Brake pedal feels spongy when depressed
- REF•9
Brake pedal pulsates when braking hard -
REF•10
Brake pedal travel excessive - REF•9
Brake pipe and hoses - 1•15, 10•10
Brakes binding - REF•10
Braking system- 0•13, 10•1et seq, REF•9
Bulb failure module - 13•19
Bulbs - 13•4, 13•7
Bumper - 12•10, 12•11
Burning - 0•5
C
Cables - 3•8, 4•7, 6•3, 7B•3, 10•11
Caliper - 10•5, 10•6
Camshaft - 2A•7, 2A•14, 2A•17, 2B•14,
2C•12, 2C•13, 2C•15
Camshaft drivebelt - 1•20
Capacities - 1•3
Carbon canister - 4•23
Carburettor stepper motor - 5•10
Catalytic converter - 4•4
Central locking motor - 13•13
Central locking system inoperative, or
unsatisfactory in operation - REF•11
Centre console - 12•15
Cigarette lighter - 13•10
Clock - 13•9, 13•10
Clutch- 6•1et seq, REF•8
Clutch fails to disengage (unable to select
gears) - REF•8
Clutch pedal travels to floor - REF•8
Clutch release bearing and arm - 6•4
Clutch slips (engine speed increases, with
no increase in vehicle speed) - REF•8
CO emissions (mixture) - 0•14
Compliance bushes - 11•9
Compression test - 2A•20, 2B•18, 2C•21
Compressor drivebelt - 3•9
Computer module and bulb - 13•18
Condenser fan and motor - 3•10
Connecting rods - 2A•11, 2A•13, 2A•15,
2B•17, 2C•12, 2C•14, 2C•16
Console light - 13•9
Contents - 0•2
Control assembly - 13•19
Control module - 10•13
Control switches - 13•19
Control units - 13•13
Conversion factors - REF•16
Coolant - 1•6, 1•20
Coolant hoses - 2C•7
Coolant leakage - REF•7
Coolant level switch - 13•18
Coolant temperature sensor - 5•10
Cooling, heating and ventilation systems-
3•1 et seq, REF•7
Corrosion - REF•7
Courtesy light - 13•7
Crankcase ventilation system - 1•19,
2A•12, 2B•3, 2C•15
Crankshaft and bearings - 2A•11, 2A•12,
2A•15, 2B•17, 2B•18, 2C•12, 2C•14,
2C•15
Crankshaft oil seals - 2A•10, 2B•15, 2C•12
Crankshaft speed/position sensor - 5•11
Crossmember insulator - 11•12
Crushing - 0•5
Cushion - 12•18
Cylinder block and bores - 2A•13
Cylinder bores - 2C•14
Cylinder head - 2A•6, 2A•8, 2A•14, 2A•17,
2B•10, 2B•11, 2B•14, 2C•8, 2C•13,
2C•19
D
De-ice thermostat - 3•10
Decarbonising - 2A•14
Dents in bodywork - 12•2
Direction indicator - 13•5, 13•11
Discs - 10•3, 10•4, 10•8
Distributor - 5•5
Door exterior handle - 12•6
Door interior trim panel - 12•7
Door latch assembly - 12•6
Door lights - 13•7
Door lock barrel - 12•6
Door pillar switch - 13•12
Door speakers - 13•21
Door striker plate - 12•6
Door switch - 13•18
Door weatherstrip - 12•7
Door window - 12•8, 12•9
Doors - 0•12, 12•4, 12•7, 12•8, 12•9, 12•10
Downshift mechanism - 7B•3
Drivebelts - 1•12, 1•20, 3•7, 3•9, 11•6
Driveshaft - 1•15, 9•3
Drivetrain - 1•16
E
Earth fault - 13•4
EEC IV module - 5•9
Electric shock - 0•5
Electric windows inoperative, or
unsatisfactory in operation - REF•11
Electrical system - 0•12, 1•8, REF•10
Electronic ignition systems - 5•3
Engine- 2A•1 et seq, 2B•1 et seq, 2C•1 et
seq, REF•6
Engine backfires - REF•7
Engine bay light - 13•8
Engine difficult to start - REF•6
Engine dismantling - 2B•8
Engine electrical systems- 5•1et seq
Engine fails to rotate when attempting to
start - REF•6
Engine hesitates on acceleration - REF•7
Engine idles erratically - REF•6
Engine lacks power - REF•7
Engine management control module - 5•9
Engine management system relays - 5•11
Engine misfires - REF•6, REF•7
Engine mountings - 2A•11, 2B•8, 2C•12
Engine oil and filter - 1•6, 1•9
Engine rotates, but will not start - REF•6
Engine runs-on after switching off - REF•7
Engine stalls - REF•7
Engine starts, but stops immediately -
REF•6
Engine will not start in any gear, or starts in
gears other than Park or Neutral -
REF•9
Entertainment console - 13•22
Environmental considerations - REF•4
ESC II module - 5•3, 5•9
Exhaust emission checks - 0•14
Exhaust gas oxygen (HEGO) sensor - 4•22
Exhaust manifold(s) - 4•21
Exhaust system - 0•13, 1•10, 4•22
Expansion tank - 3•7
IND•1Index
Note: References throughout this index are in the form - “Chapter number” • “page number”
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