Common Smells Indicating Issues in Cars

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Common Smells Indicating Issues in Cars
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In-car smells can indicate minor or major
mechanical issues, depending on the nature of the
smell, its location, and whether any fluid leaks
or other symptoms are present.
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Fluid leaks are the most common source of unusual
smells in a vehicle. Gasoline, oil, coolant, and
other fluids can leak from ruptured hoses,
gaskets, and seals.
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Many components can cause fluids to leak if they
break or rupture, but some components themselves
can cause unusual odors if they stop working
properly.
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Smells coming out from under the hood or under
the vehicle often take on a specific, recurring
odor. Here are some odors you must take note of.
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Exhaust
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Carbon monoxide is a major component of vehicle
exhaust, and is often referred to as the silent
killer. You must get your car inspected
immediately.
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If exhaust fumes are present in the cabin, so is
carbon monoxide. Carbon monoxide can cause loss
of consciousness, and prolonged exposure can
cause death.
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Gasoline
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A strong smell of gasoline can indicate a leaking
fuel supply component or an evaporative emissions
component.
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In modern cars, fuel odors should not be
detectable at any time beyond refueling. You must
have the vehicle inspected by a professional
immediately.
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Sweet smell
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When a sweet smell is detectable, the likely
source is the coolant. The coolant travels
throughout the engine, radiator, hoses, and
heater core, which is located under the dashboard.
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A coolant smell will usually be followed by an
overheating condition, so a thorough visual
inspection should be performed immediately.
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Sulfer
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The most likely cause of a strong scent like
rotten eggs is a catalytic converter being
overwhelmed or reaching failure.
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Sometimes this can be a result of an overcharged
battery or fuel system issue. To avoid costly
repairs, have the car inspected as soon as
possible.
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Burning wood or rubber
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Overheating the brakes or tires can cause the car
interior to smell of burnt rubber and a slipping
or malfunctioning clutch can cause the interior
to smell like burning wood.
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In both the cases, letting the components cool
off for a few minutes may solve the problem, but
if the problem persists, then the components are
in the need of servicing.
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Hot oil
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As engine oil leaks from a failed gasket or seal,
it typically lands on hot components and gives
off a distinct smell.
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Small amounts of oil may neither leave traces on
the floor nor be easily seen without a thorough
inspection. It is vital to address the smell of
oil even if no oil is actually visible.
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Mildew or mold
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Usually, a musty odor indicates the buildup on
the vehicle's evaporator or a cabin air filter
that is due for replacement.
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An inspection of the duct system is required
under these circumstances and if there is a
presence of a cabin filter, then it needs to be
replaced.
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Finally
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You must not be complacent when you experience
these pungent smell coming from your car, and
should immediately take it for inspection.
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If you carry out a preventive maintenance, then
it will help you in avoiding most of the common
issues associated with cars.
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