Fault Finding - PEUGEOT 205 Manual

Fault finding

REF•12
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Engine fails to rotate when attempting to start
Engine rotates, but will not start
Engine difficult to start when cold
Engine difficult to start when hot
Starter motor noisy or excessively-rough in engagement
Engine starts, but stops immediately
Engine idles erratically
Engine misfires at idle speed
Engine misfires throughout the driving speed range
Engine hesitates on acceleration
Engine stalls
Engine lacks power
Engine backfires
Oil pressure warning light illuminated with engine running
Engine runs-on after switching off
Engine noises
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . .2
Overheating
Overcooling
External coolant leakage
Internal coolant leakage
Corrosion
Fuel and exhaust systems . . . . . . . . . . . . . . . . .3
Excessive fuel consumption
Fuel leakage and/or fuel odour
Excessive noise or fumes from exhaust system
Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Pedal travels to floor - no pressure or very little resistance
Clutch fails to disengage (unable to select gears)
Clutch slips (engine speed increases, with no increase in vehicle
speed)
Judder as clutch is engaged
Noise when depressing or releasing clutch pedal
Manual transmission . . . . . . . . . . . . . . . . . . . . .5
Noisy in neutral with engine running
Noisy in one particular gear
Difficulty engaging gears
Jumps out of gear
Vibration
Lubricant leaks
Introduction
The vehicle owner who does his or her own
maintenance according to the recommended
service schedules should not have to use this
section of the manual very often. Modern
component reliability is such that, provided
those items subject to wear or deterioration
are inspected or renewed at the specified
intervals, sudden failure is comparatively rare.
Faults do not usually just happen as a result of
sudden failure, but develop over a period of
time. Major mechanical failures in particular
Automatic transmission . . . . . . . . . . . . . . . . . . .6
Fluid leakage
Transmission fluid brown, or has burned smell
General gear selection problems
Transmission will not downshift (kickdown) with accelerator fully
depressed
Engine will not start in any gear, or starts in gears other than Park
or Neutral
Transmission slips, shifts roughly, is noisy, or has no drive in
forward or reverse gears
Driveshafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Clicking or knocking noise on turns (at slow speed on full-lock)
Vibration when accelerating or decelerating
Braking system . . . . . . . . . . . . . . . . . . . . . . . . .8
Vehicle pulls to one side under braking
Noise (grinding or high-pitched squeal) when brakes applied
Excessive brake pedal travel
Brake pedal feels spongy when depressed
Excessive brake pedal effort required to stop vehicle
Judder felt through brake pedal or steering wheel when braking
Brakes binding
Rear wheels locking under normal braking
Suspension and steering systems . . . . . . . . . . .9
Vehicle pulls to one side
Wheel wobble and vibration
Excessive pitching and/or rolling around corners, or during
braking
Wandering or general instability
Excessively-stiff steering
Excessive play in steering
Lack of power assistance
Tyre wear excessive
Electrical system . . . . . . . . . . . . . . . . . . . . . . .10
Battery will not hold a charge for more than a few days
Ignition/no-charge warning light remains illuminated with engine
running
Ignition/no-charge warning light fails to come on
Lights inoperative
Instrument readings inaccurate or erratic
Horn inoperative, or unsatisfactory in operation
Windscreen/tailgate wipers inoperative, or unsatisfactory in
operation
Windscreen/tailgate washers inoperative, or unsatisfactory in
operation
Electric windows inoperative, or unsatisfactory in operation
Central locking system inoperative, or unsatisfactory in operation
are usually preceded by characteristic
symptoms over hundreds or even thousands
of miles. Those components which do
occasionally fail without warning are often
small and easily carried in the vehicle.
With any fault-finding, the first step is to
decide where to begin
Sometimes this is obvious, but on other
occasions, a little detective work will be
necessary. The owner who makes half a
dozen haphazard adjustments
replacements may be successful in curing a
fault (or its symptoms), but will be none the
wiser if the fault recurs, and ultimately may
have spent more time and money than was
necessary. A calm and logical approach will
be found to be more satisfactory in the long
investigations. run. Always take into account any warning
signs or abnormalities that may have been
noticed in the period preceding the fault -
power loss, high or low gauge readings,
or unusual smells, etc - and remember that