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WHAT IS THAT NOISE!!??!!
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I am sure this
is familiar to many of us - you are motoring along and you hear a noise.
Where
is it coming from?
What
can it be?
Is
it dangerous?
Should
I get out and take a look, or keep my head down and hope it goes away?
Here
is a rough guide showing some of the sounds you may experience, the possible
problem and the solution.
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SOUND
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POSSIBLE PROBLEM
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SOLUTION
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BACKFIRING
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Incorrect
ignition timing, faulty ignition or leaking valves
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Have ignition
and/or valves checked.
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CLATTER
FROM ENGINE
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Insufficient
engine oil.
Worn or badly adjusted valves.
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Add oil.
Refer to a mechanic
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WHINING
OR CHATTERING FROM ENGINE
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Incorrectly
tensioned camshaft drive belt.
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Refer to a
mechanic as soon as possible
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RATTLE
WHEN ACCELERATING
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Wrong grade of
fuel;
engine overheating;
engine needs decoke
incorrect ignition timing;
ignition system fault.
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Use higher
grade of fuel;
Refer to a mechanic.
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KNOCKING
FROM ENGINE WHICH INCREASES WITH ENGINE SPEED
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Worn camshaft
or cam followers.
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Refer to a
mechanic as soon as possible.
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SCREECH
UNDER ACCELERATION
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Slipping
auxiliary drive belt/fan belt.
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Check/adjust
belt or have a replacement fitted.
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SCREECH
WHEN STEERING
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Power steering
belt slipping.
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Check/adjust
belt.
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MOAN
FROM ENGINE WHEN STEERING
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Power steering
fluid level too low.
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Top up power
steering fluid level.
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ROAR OR
RASP UNDER ACCELERATION
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Blown exhaust.
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Have exhaust
checked.
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SQUEAL
OR GROAN WHEN BRAKING
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Worn or
defective brake components.
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Refer to a
mechanic.
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HISS
FROM ENGINE
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Leak from
coolant or air/vacuum hoses.
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Refer to a
mechanic.
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CLICKING
FROM WHEELS
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Loose hubcap;
stone in hubcap, or stone lodged in tyre tread.
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Tighten hubcap;
remove stone.
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Motor
parts and their uses.
Information on car batteries, spark plugs, oil and tyres (tires)
How to clean and
protect bodywork
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