1989 FORD FIESTA compression ratio

1595 Ford Fiesta Remake
failure of components such as fuses or spark
plugs may only be pointers to some
underlying fault.
The pages which follow provide an easy
reference guide to the more common
problems which may occur during the
operation of the vehicle. These problems and
their possible causes are grouped under
headings denoting various components or
systems, such as Engine, Cooling system,
etc. The Chapter and/or Section which deals
with the problem is also shown in brackets.
Whatever the fault, certain basic principles
apply. These are as follows:
Verify the fault . This is simply a matter of
being sure that you know what the symptoms are before starting work. This is particularly
important if you are investigating a fault for
someone else, who may not have described it
very accurately.
Don’t overlook the obvious . For example, if
the vehicle won’t start, is there petrol in the
tank? (Don’t take anyone else’s word on this
particular point, and don’t trust the fuel gauge
either!) If an electrical fault is indicated, look
for loose or broken wires before digging out
the test gear. Cure the disease, not the symptom .
Substituting a flat battery with a fully-charged
one will get you off the hard shoulder, but if
the underlying cause is not attended to, the
new battery will go the same way. Similarly, changing oil-fouled spark plugs for a new set
will get you moving again, but remember that
the reason for the fouling (if it wasn’t simply an
incorrect grade of plug) will have to be
established and corrected.
Don’t take anything for granted . Particularly,
don’t forget that a “new” component may
itself be defective (especially if it’s been
rattling around in the boot for months), and
don’t leave components out of a fault
diagnosis sequence just because they are
new or recently fitted. When you do finally
diagnose a difficult fault, you’ll probably
realise that all the evidence was there from
the start.
Fault findingREF•15
REF
Engine
Engine fails to rotate when attempting to start
m
m Battery terminal connections loose or corroded (Chapter 5A).
m
m Battery discharged or faulty (Chapter 5A).
m
m Broken, loose or disconnected wiring in the starting circuit
(Chapter 5A).
m m Defective starter solenoid or switch (Chapter 5A).
m
m Defective starter motor (Chapter 5A).
m
m Flywheel ring gear or starter pinion teeth loose or broken
(Chapters 2A, 2B, 2C or 5A).
m m Engine earth strap broken or disconnected (Chapter 5A).
m
m Automatic transmission not in Park/Neutral position, or starter
inhibitor switch faulty (Chapter 7B).
Engine rotates, but will not start
m mFuel tank empty.
m
m Battery discharged (engine rotates slowly) (Chapter 5A).
m
m Battery terminal connections loose or corroded (Chapter 5A).
m
m Ignition components damp or damaged (Chapters 1 and 5B).
m
m Broken, loose or disconnected wiring in the ignition circuit
(Chapters 1 and 5B).
m m Worn, faulty or incorrectly-gapped spark plugs (Chapter 1).
m
m Major mechanical failure (eg camshaft drive) (Chapters 2A, 2B
or 2C).
Engine difficult to start when cold
m mBattery discharged (Chapter 5A).
m
m Battery terminal connections loose or corroded (Chapter 5A).
m
m Worn, faulty or incorrectly-gapped spark plugs (Chapter 1).
m
m Other ignition system fault (Chapters 1 and 5B).
m
m Engine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E
or 5B).
m m Low cylinder compressions (Chapters 2A, 2B or 2C).
Engine difficult to start when hot
m
mAir filter element dirty or clogged (Chapter 1).
m
m Engine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E
or 5B).
m m Low cylinder compressions (Chapters 2A, 2B or 2C).
m
m Faulty hydraulic tappet(s) (Chapters 2B or 2C).
Starter motor noisy or excessively-rough in
engagement
m mFlywheel ring gear or starter pinion teeth loose or broken
(Chapters 2A, 2B, 2C or 5A).
m m Starter motor mounting bolts loose or missing (Chapter 5A).
m
m Starter motor internal components worn or damaged (Chapter 5A).
Engine starts but stops immediately
m
mLoose or faulty electrical connections in the ignition circuit
(Chapters 1 and 5B).
m m Engine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E
or 5B).
m m Vacuum leak at the inlet manifold (Chapters 1, 4A, 4B, 4C, 4D or 4E).
Engine idles erratically
m
mEngine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E
or 5B).
m m Air filter element clogged (Chapter 1).
m
m Vacuum leak at the inlet manifold or associated hoses (Chap-
ters 1, 4A, 4B, 4C, 4D or 4E).
m m Worn, faulty or incorrectly-gapped spark plugs (Chapter 1).
m
m Incorrect valve clearances (Chapter 2A).
m
m Faulty hydraulic tappet(s) (Chapters 2B or 2C).
m
m Uneven or low cylinder compressions (Chapters 2A, 2B or 2C).
m
m Camshaft lobes worn (Chapters 2A, 2B or 2C).
m
m Timing chain and sprockets worn (Chapter 2A).
m
m Timing belt incorrectly-tensioned (Chapters 2B or 2C).
Engine misfires at idle speed
m
mWorn, faulty or incorrectly-gapped spark plugs (Chapter 1).
m
m Faulty spark plug HT leads (Chapter 1).
m
m Engine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E
or 5B).
m m Vacuum leak at the inlet manifold or associated hoses (Chap-
ters 1, 4A, 4B, 4C, 4D or 4E).
m m Incorrect valve clearances (Chapter 2A).
m
m Faulty hydraulic tappet(s) (Chapters 2B or 2C).
m
m Uneven or low cylinder compressions (Chapters 2A, 2B and 2C).
m
m Disconnected, leaking or perished crankcase ventilation hoses
(Chapters 1 and 4E).
Engine misfires throughout the driving speed range
m mFuel filter choked (Chapter 1).
m
m Fuel pump faulty or delivery pressure low (Chapters 4A, 4B, 4C or 4D).\
m
m Fuel tank vent blocked or fuel pipes restricted (Chapters 4A, 4B,
4C, 4D or 4E).
m m Vacuum leak at the inlet manifold or associated hoses (Chap-
ters 1, 4A, 4B, 4C, 4D or 4E).
m m Worn, faulty or incorrectly-gapped spark plugs (Chapter 1).
m
m Faulty spark plug HT leads (Chapter 1).
m
m Faulty ignition coil (Chapter 5B).
m
m Engine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E
or 5B).
m m Uneven or low cylinder compressions (Chapters 2A, 2B or 2C).
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1595 Ford Fiesta Remake
REF•16Fault finding
Cooling system
Overheating
m
mInsufficient coolant in system (Chapter 1).
m
m Thermostat faulty (Chapter 3).
m
m Radiator core blocked or grille restricted (Chapter 3).
m
m Radiator electric cooling fan(s) or coolant temperature sensor
faulty Chapter 3).
m m Engine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E
or 5B).
m m Pressure cap faulty (Chapter 3).
m
m Auxiliary drivebelt worn or slipping (Chapter 1).
m
m Inaccurate coolant temperature gauge sender (Chapter 3).
m
m Airlock in cooling system (Chapter 1).
Overcooling
m
mThermostat faulty (Chapter 3).
m
m Inaccurate coolant temperature gauge sender (Chapter 3).
External coolant leakage
m
mDeteriorated or damaged hoses or hose clips (Chapter 1).
m
m Radiator core or heater matrix leaking (Chapter 3).
m
m Pressure cap faulty (Chapter 3).
m
m Water pump seal leaking (Chapter 3).
m
m Boiling due to overheating (Chapter 3).
m
m Core plug leaking (Chapter 2D).
Internal coolant leakage
m
mLeaking cylinder head gasket (Chapters 2A, 2B or 2C).
m
m Cracked cylinder head or cylinder bore (Chapter 2D).
Corrosion
m
mInfrequent draining and flushing (Chapter 1).
m
m Incorrect antifreeze mixture, or inappropriate antifreeze type
(Chapters 1 and 3).
Engine (continued)
Engine hesitates on acceleration
m
m Worn, faulty or incorrectly-gapped spark plugs (Chapter 1).
m
m Engine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E
or 5B).
m m Vacuum leak at the inlet manifold or associated hoses (Chap-
ters 1, 4A, 4B, 4C, 4D, 4E or 5B).
Engine stalls
m mEngine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E,
or 5B).
m m Vacuum leak at the inlet manifold or associated hoses (Chap-
ters 1, 4A, 4B, 4C, 4D or 4E).
m m Fuel filter choked (Chapter 1).
m
m Fuel pump faulty or delivery pressure low (Chapters 4A, 4B, 4C
or 4D).
m m Fuel tank vent blocked or fuel pipes restricted (Chapters 4A, 4B,
4C. 4D or 4E).
Engine lacks power
m mEngine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E
or 5B).
m m Timing chain or belt incorrectly fitted or incorrectly tensioned
(Chapters 2A, 2B or 2C).
m m Fuel filter choked (Chapter 1).
m
m Fuel pump faulty or delivery pressure low (Chapters 4A, 4B, 4C
or 4D).
m m Uneven or low cylinder compressions (Chapters 2A, 2B or 2C).
m
m Worn, faulty or incorrectly-gapped spark plugs (Chapter 1).
m
m Vacuum leak at the inlet manifold or associated hoses (Chap-
ters 1, 4A, 4B, 4C, 4D or 4E).
m m Brakes binding (Chapters 1 and 9).
m
m Clutch slipping (Chapter 6).
m
m Automatic transmission fluid level incorrect (Chapter 1).
Oil pressure warning light illuminated with engine
running
m mLow oil level or incorrect oil grade (Chapter 1).
m
m Faulty oil pressure warning light switch (Chapters 2A, 2B or 2C).
m
m Worn engine bearings and/or oil pump (Chapters 2A, 2B, 2C
or 2D).
m m High engine operating temperature (Chapter 3).
m
m Oil pressure relief valve defective (Chapters 2A, 2B or 2C).
m
m Oil pick-up strainer clogged (Chapters 2A, 2B or 2C).
Engine backfires
m
mEngine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E
or 5B).
m m Timing chain or belt incorrectly fitted or incorrectly tensioned
(Chapters 2A, 2B or 2C).
m m Vacuum leak at the inlet manifold or associated hoses (Chap-
ters 1, 4A, 4B, 4C, 4D or 4E).
Engine runs-on after switching off
m mIdle speed excessively high (Chapters 4A, 4B, 4C or 4D).
m
m Engine management system fault (Chapters 1, 4A, 4B, 4C, 4D, 4E
or 5B).
m m Excessive carbon build-up in engine (Chapters 2A, 2B or 2C).
m
m High engine operating temperature (Chapter 3).
Engine noises
Pre-ignition (pinking) or knocking during acceleration or
under load
m mIncorrect grade of fuel (Chapters 4A, 4B, 4C or 4D).
m
m Vacuum leak at the inlet manifold or associated hoses (Chap-
ters 1, 4A, 4B, 4C, 4D or 4E).
m m Excessive carbon build-up in engine (Chapters 2A, 2B or 2C).
Whistling or wheezing noises
m
mLeaking inlet manifold gasket (Chapters 4A, 4B, 4C, 4D).
m
m Leaking exhaust manifold gasket or downpipe-to-manifold joint
(Chapter 4E).
m m Leaking vacuum hose (Chapters 1, 4A, 4B, 4C, 4D, 4E or 9).
m
m Blowing cylinder head gasket (Chapters 2A, 2B or 2C).
Tapping or rattling noises
m
mIncorrect valve clearance adjustment (Chapter 2A).
m
m Faulty hydraulic tappet(s) (Chapters 2B or 2C).
m
m Worn valve gear or camshaft (Chapters 2A, 2B, 2C or 2D).
m
m Worn timing chain, belt or tensioner (Chapters 2A, 2B or 2C).
m
m Ancillary component fault (water pump, alternator, etc) (Chapters 3
and 5A).
Knocking or thumping noises
m mWorn big-end bearings (regular heavy knocking, perhaps less
under load) Chapter 2D).
m m Worn main bearings (rumbling and knocking, perhaps worsening
under load) Chapter 2D).
m m Piston slap (most noticeable when cold) (Chapter 2D).
m
m Ancillary component fault (water pump, alternator, etc) (Chapters 3
and 5A).
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1595 Ford Fiesta Remake
Glossary of technical termsREF•23
REF
CamshaftA rotating shaft on which a series
of cam lobes operate the valve mechanisms.
The camshaft may be driven by gears, by
spr ockets and chain or by sprockets and a
belt.
Canister A container in an evaporative
emission control system; contains activated
char coal granules to trap vapours from the
fuel system.
Carburettor A device which mixes fuel with
air in the proper proportions to provide a
desir ed power output from a spark ignition
inter nal combustion engine.
Castellated Resembling the parapets along
the top of a castle wall. For example, a
castellated balljoint stud nut.
Castor In wheel alignment, the backward or
forwar d tilt of the steering axis. Castor is
positive when the steering axis is inclined
rearwar d at the top. Catalytic converter
A silencer-like device in
the exhaust system which converts certain
pollutants in the exhaust gases into less
harmful substances.
Circlip A ring-shaped clip used to prevent
endwise movement of cylindrical parts and
shafts. An internal circlip is installed in a
gr oove in a housing; an external circlip fits into
a groove on the outside of a cylindrical piece
such as a shaft.
Clearance The amount of space between
two parts. For example, between a piston and
a cylinder, between a bearing and a journal,
etc.
Coil spring A 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.
Compression Reduction in volume, and
incr ease in pressure and temperature, of a
gas, caused by squeezing it into a smaller
space.
Compr ession ratio The 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) joint A type of
universal joint that cancels out vibrations
caused by driving power being transmitted
thr ough an angle.
Cor e plug A disc or cup-shaped metal device
inserted in a hole in a casting through which
cor e was removed when the casting was
formed. Also known as a freeze plug or
expansion plug.
Crankcase The lower part of the engine
block in which the crankshaft rotates.
Crankshaft The main rotating member, or
shaft, running the length of the crankcase,
with offset “throws” to which the connecting
r ods are attached. Crocodile clip
See Alligator clip
DDiagnostic code Code numbers obtained by
accessing the diagnostic mode of an engine
management computer. This code can be
used to determine the area in the system
wher e a malfunction may be located.
Disc brake A brake design incorporating a
r otating disc onto which brake pads are
squeezed. The resulting friction converts the
ener gy 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.
Driveshaft Any shaft used to transmit
motion. Commonly used when referring to the
axleshafts on a front wheel drive vehicle.
Drum brake A type of brake using a drum-
shaped metal cylinder attached to the inner
surface of the wheel. When the brake pedal is
pr essed, curved brake shoes with friction
linings press against the inside of the drum to
slow or stop the vehicle.
Castellated nut
Catalytic converter
Crankshaft assembly
Carburettor
Canister
Drum brake assembly
Accessor y drivebelts
Driveshaft
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1595 Ford Fiesta Remake
IndexREF•27
REF
Note: References throughout this index relate to Chapter•page number
A
Accelerator cable -4A•4, 4B•4, 4C•4, 4D•3
Accelerator pedal - 4A•4, 4B•4, 4C•4, 4D•3
Accelerator pump - 4A•8
Acknowledgements - 0•4
Aerial - 12•16
Air bags - 0•5, 12•17
Air cleaner - 1•22, 1•23, 4A•3, 4B•4, 4C•3,
4D•3, 4E•5
Air temperature control system - 1•23,
4B•8, 4C•7, 4D•6
Alarm system - 12•17, REF• 5
Alternator - 5A•4
Anti-lock braking system (ABS) - 9•11,
9•14, 9•16
Anti-roll bar - 10•7, 10•11
Anti-theft alarm system - 12•17, REF•5
Antifreeze - 0•12, 0•17, 1•21, 1•22, 3•2
Asbestos - 0•5
ATF - 0•17, 1•18, 1•24
Automatic choke - 4A•16, 4A•17
Automatic transmission -2A•10, 2B•13,
2C•15, 2D•6, 2D•8, 2D•10, 7B•1 et seq,
12 •6, 12 •8
Automatic transmission fault finding - REF• 18
Automatic transmission fluid - 0•17, 1•18,
1•24
Auxiliary lights - 12•7, 12•10
Axle - 10•10
B
Backfire - REF•16
Backrest - 11•17
Ballast resistor - 4B•9
Balljoint - 10•17
Battery - 0•5, 0•14, 5A•2, 5A•3
Battery fault - REF•20
Big-end bearings - 2D•21, 2D•24
Bleeding braking system - 9•10, 9•11
Bleeding power steering - 10•17
Body electrical systems -1•18, 12 •1et seq,
REF• 11
Body electrical system fault finding - 5A•2,
12 •3, REF •20
Bodywork and fittings -1•18, 11 •1et seq,
REF• 13
Bonnet - 1•18, 11•4,11•5
Boot - 1•16
Boots - 8•3, 8•4, 10 •15
Brake fluid - 0•13, 0•17, 1•26, 12 •6
Braking system -1•17, 9•1 et seq, 12•6,
REF• 10, REF•11, REF• 12
Braking system fault finding - REF•18 Bulbs -
0•16, 12 •7,12•8
Bumpers - 11•7, 11•8
Burning - 0•5
Buying spare parts - REF•5
C
Cables -4A•4, 4B•4, 4C•4, 4D•3, 6•1, 7B•2,
9•12, 9•13, 12 •12
Calipers - 9•3
Camshaft - 2B•6, 2B•7, 2C•7, 2C•8, 2D•16
Camshaft position sensor - 4D•6
Carburettor - 4A•7, 4A•8, 4A•9, 4A•11,
4A•13, 4A•14, 4A•15, 4A•17, 4A•18
Carpets - 11•2
Cassette player - 12•15, REF •5
Catalytic converter - 4E•2, 4E•5
Centre console - 11•20, 12 •5
Charcoal canister - 4E•6
Charging system - 5A•3
Choke - 4A•4, 4A•16, 4A•17
Cigarette lighter - 12•9, 12 •12
Clock - 12•8, 12•12
Clutch -1•18, 6•1 et seq
Clutch fault finding - REF•17
Coil - 5B•4
Compression test - 2A•3, 2B•3, 2C•3
Connecting rods - 2D•17, 2D•24, 2D•25
Console - 11•20, 12•5
Contents - 0•2
Conversion factors - REF•6
Coolant - 0•12, 0•17, 1•21, 1•22, 3•2
Coolant pump - 3•7
Coolant temperature sensor - 4B•8, 4C•7,
4D•6
Cooling ,heating and ventilation systems -
3•1 et seq
Cooling system fault finding - REF•16
Courtesy light - 12•6, 12•9
Crankcase - 2D•19
Crankcase ventilation system - 1•24
Crankshaft - 2A•6, 2A•9, 2B•4, 2B•6,
2B•12, 2C•4, 2C•7, 2C•14, 2D•18,
2D•22, 2D•24
Crankshaft position sensor - 4B•8, 4C•7,
4D•6, 5B•5
Crossmember - 10•7
Crushing - 0•5
Cushion - 11•17
CV joint - 1•16, 8•3, 8•4
CVH and PTE engine in-car repair
procedures -2B•1 et seq
Cylinder block - 2D•19
Cylinder head - 2A•4, 2A•5, 2B•4, 2B•9,
2C•3, 2C•10, 2D•12, 2D•14, 2D•15
D
Dents in bodywork - 11•2
Depressurising fuel system - 4B•3, 4C•3,
4D•2
Differential - 7A•3, 7B•3
Dimensions - REF•1
Direction indicators - 12•7, 12•9, 12•10
Discs - 9•4
Distributor - 1•20, 5B•5, 5B•6, 5B•7
Doors - 1•18, 11• 6,11•9, 11 •10,,11 •11,
11 •13, 11•14, 11•15, REF •11
Drip rail moulding - 11•5
Drivebelt - 1•11
Driveplate - 2B•14, 2C•16
Driveshafts -1•16, 8•1 et seq,REF•12
Driveshafts fault finding - REF•19
Drivetrain - 1•18
Drums - 9•4
E
Earth fault - 12•4
EEC IV engine management module - 4C•6
Electric shock - 0•5
Electric windows - 11•14, 12 •7, 12•15,
REF•20
Emblems - 11•5
Emission control system - 1•24, 4E•1
Engine fault finding - REF•15, REF•16,
REF •18
Engine oil - 0•12, 0•17, 1•9
Engine removal and overhaul procedures -
2D•1 et seq
Environmental considerations - REF•4
Evaporative emission control systems - 1•24, 4E•2, 4E•5
Exhaust and emission control systems -
4E•1 et seq
Exhaust emission checks - REF•13
Exhaust manifold - 4E•3
Exhaust system - 1•16, 4E•1, 4E•2, REF •5,
REF •12
Exhaust system fault - REF•17
Expansion tank - 3•6
F
Facia - 11•20, 12 •5
Fan - 3•4
Fast-idle speed adjustment - 4A•13, 4A•15,
4A•9, 4A•7
Fault finding - REF•14et seq
Fault finding - automatic transmission -
REF •18
Fault finding - braking system - REF•18
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