Peugeot 205 - Manual (Page 231)

REF•14
Fault finding
Engine (continued)
Engine misfires throughout the driving speed
range
Ⅵ Ⅵ Fuel filter choked - fuel-injected models (Chapter 1).
Ⅵ Ⅵ Fuel pump faulty, or delivery pressure low (Chapter 4A, 4B or 4C).
Ⅵ Ⅵ Fuel tank vent blocked, or fuel pipes restricted (Chapter 4A, 4B
or 4C).
Ⅵ Ⅵ Vacuum leak at the carburettor/throttle body, inlet manifold or
associated hoses (Chapter 4A, 4B or 4C).
Ⅵ Ⅵ Worn, faulty or incorrectly-gapped spark plugs (Chapter 1).
Ⅵ Ⅵ Faulty spark plug HT leads (Chapter 1).
Ⅵ Ⅵ Distributor cap cracked or tracking internally (where applicable)
(Chapter 1).
Ⅵ Ⅵ Faulty ignition coil or ignition module (Chapter 5B).
Ⅵ Ⅵ Uneven or low cylinder compressions (Chapter 2A, 2B or 2C).
Ⅵ Ⅵ Blocked carburettor jet(s) or internal passages - carburettor
models (Chapter 4A).
Ⅵ Ⅵ Blocked injector/fuel injection system fault - fuel-injected models
(Chapter 4B or 4C).
Engine hesitates on acceleration
Ⅵ Ⅵ Worn, faulty or incorrectly-gapped spark plugs (Chapter 1).
Ⅵ Ⅵ Vacuum leak at the carburettor/throttle body, inlet manifold or
associated hoses (Chapter 4A, 4B or 4C).
Ⅵ Ⅵ Blocked carburettor jet(s) or internal passages - carburettor
models (Chapter 4A).
Ⅵ Ⅵ Blocked injector/fuel injection system fault - fuel-injected
(Chapter 4B or 4C).
Engine stalls
Ⅵ Ⅵ Vacuum leak at the carburettor/throttle body, inlet manifold or
associated hoses (Chapter 4A, 4B or 4C).
Ⅵ Ⅵ Fuel filter choked - fuel-injected models (Chapter 1).
Ⅵ Ⅵ Fuel pump faulty, or delivery pressure low (Chapter 4A, 4B or 4C).
Ⅵ Ⅵ Fuel tank vent blocked, or fuel pipes restricted (Chapter 4A, 4B, 4C
or 4D).
Ⅵ Ⅵ Blocked carburettor jet(s) or internal passages - carburettor
models (Chapter 4A).
Ⅵ Ⅵ Blocked injector/fuel injection system fault - fuel-injected models
(Chapter 4B or 4C).
Engine lacks power
Ⅵ Ⅵ Timing chain or belt incorrectly fitted or tensioned (Chapter 2A, 2B
or 2C).
Ⅵ Ⅵ Fuel filter choked - fuel-injected models (Chapter 1).
Ⅵ Ⅵ Fuel pump faulty, or delivery pressure low (Chapter 4A, 4B, or 4C).
Ⅵ Ⅵ Uneven or low cylinder compressions (Chapter 2A, 2B or 2C).
Ⅵ Ⅵ Worn, faulty or incorrectly-gapped spark plugs (Chapter 1).
Ⅵ Ⅵ Vacuum leak at the carburettor/throttle body, inlet manifold or
associated hoses (Chapter 4A, 4B or 4C).
Ⅵ Ⅵ Blocked carburettor jet(s) or internal passages - carburettor
models (Chapter 4A).
Ⅵ Ⅵ Blocked injector/fuel injection system fault - fuel-injected models
(Chapter 4B or 4C).
Ⅵ Ⅵ Brakes binding (Chapters 1 and 9).
Ⅵ Ⅵ Clutch slipping (Chapter 6).
Engine backfires
Ⅵ Ⅵ Timing chain or belt incorrectly fitted or tensioned (Chapter 2A, 2B
or 2C).
Ⅵ Ⅵ Vacuum leak at the carburettor/throttle body, inlet manifold or
associated hoses (Chapter 4A, 4B or 4C).
Ⅵ Ⅵ Blocked carburettor jet(s) or internal passages - carburettor
models (Chapter 4A).
Ⅵ Ⅵ Blocked injector/fuel injection system fault - fuel-injected models
(Chapter 4B or 4C).
Oil pressure warning light illuminated with engine
running
Ⅵ Ⅵ Low oil level, or incorrect oil grade (Chapter 1).
Ⅵ Ⅵ Faulty oil pressure warning light switch (Chapter 5A).
Ⅵ Ⅵ Worn engine bearings and/or oil pump (Chapter 2D).
Ⅵ Ⅵ High engine operating temperature (Chapter 3).
Ⅵ Ⅵ Oil pressure relief valve defective (Chapter 2A, 2B or 2C).
Ⅵ Ⅵ Oil pick-up strainer clogged (Chapter 2A, 2B or 2C).
Engine runs-on after switching off
Ⅵ Ⅵ Excessive carbon build-up in engine (Chapter 2D).
Ⅵ Ⅵ High engine operating temperature (Chapter 3).
Ⅵ Ⅵ Faulty fuel cut-off solenoid - carburettor models (Chapter 4A).
Ⅵ Ⅵ Fuel injection system fault - fuel-injected models (Chapter 4B
or 4C).
Engine noises
Pre-ignition (pinking) or knocking during acceleration or
under load
Ⅵ Ⅵ Ignition timing incorrect/ignition system fault (Chapters 1 and 5B).
Ⅵ Ⅵ Incorrect grade of spark plug (Chapter 1).
Ⅵ Ⅵ Incorrect grade of fuel (Chapter 1).
Ⅵ Ⅵ Vacuum leak at the carburettor/throttle body, inlet manifold or
associated hoses (Chapter 4A, 4B or 4C).
Ⅵ Ⅵ Excessive carbon build-up in engine (Chapter 2D).
Ⅵ Ⅵ Blocked carburettor jet(s) or internal passages - carburettor
models (Chapter 4A).
Ⅵ Ⅵ Blocked injector/fuel injection system fault - fuel-injected models
(Chapter 4B or 4C).
Whistling or wheezing noises
Ⅵ Ⅵ Leaking inlet manifold or carburettor/throttle body gasket
(Chapter 4A, 4B or 4C).
Ⅵ Ⅵ Leaking exhaust manifold gasket or pipe-to-manifold joint
(Chapter 4A, 4B, 4C or 4D).
Ⅵ Ⅵ Leaking vacuum hose (Chapters 4A, 4B, 4C, 4D, 5B and 9).
Ⅵ Ⅵ Blowing cylinder head gasket (Chapter 2A, 2B and 2C).
Tapping or rattling noises
Ⅵ Ⅵ Worn valve gear or camshaft (Chapter 2A, 2B or 2C).
Ⅵ Ⅵ Ancillary component fault (coolant pump, alternator, etc)
(Chapters 3, 5A, etc).
Knocking or thumping noises
Ⅵ Ⅵ Worn big-end bearings (regular heavy knocking, perhaps less
under load) (Chapter 2D).
Ⅵ Ⅵ Worn main bearings (rumbling and knocking, perhaps worsening
under load) (Chapter 2D).
Ⅵ Ⅵ Piston slap (most noticeable when cold) (Chapter 2D).
Ⅵ Ⅵ Ancillary component fault (coolant pump, alternator, etc)
(Chapters 3, 5A, etc).