Things to Know About Bad Spark Plugs

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Things to Know About Bad Spark Plugs
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A spark plug is an essential component of an
internal combustion engine as it is responsible
for the spark which ignites the air-fuel mixture.
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It helps in the uninterrupted movement of the
car, good combustion, low discharge of gases,
improved fuel economy and performance.
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Faulty spark plugs can lead to severe problems in
cars and in the worst case will not allow the
engine to start.
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The spark plugs do wear out over time, although
the actual lifespan varies depending on the usage
and type of the plug.
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Signs of a bad spark plug
Here are some of the common signs to look after
for detecting a bad spark plug at an early stage
and avoid any potential damage to the engine.
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Reduced performance
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Poor fuel economy
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Engine issues
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Reduced performance
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Look out for carbon deposits or marks of fuel on
the plug as they obstruct the functioning of the
spark plug and the plug needs to be restored.
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Poor fuel economy
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The car starts to consume more fuel as the fuel
gets wasted when the car fails to receive the
right amount of spark at the right time.
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Engine issues
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The biggest indicator of a bad spark plug is the
stalling of the engine and sudden drop in the
acceleration more often while driving.
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Reasons for spark plug wear out
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There are several factors that play a major role
in determining the lifespan of the spark plugs.
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Generally, the spark plugs wear out over time due
to aging, but still, it may get damaged earlier
due to the following reasons.
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More vibration
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Excess heat
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Oil leaks
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More vibration
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Constant wear and tear caused by the engine
vibration can loosen the electrical connection at
the spark plug.
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This causes an increase in the voltage required
to fire the spark plugs which may damage the
ignition coil and the spark plug wires.
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Excess heat
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The engine heat can burn the wire insulation and
boots and disrupt proper spark plug wire seating
and performance.
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The wire insulation, which is damaged by heat can
allow voltage to jump and overheated spark plugs
can cause the electrode to wear faster.
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Oil leaks
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When leaked oil seeps on to the spark plug, the
tip gets contaminated and creates damage and
additional wear.
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Carbon buildup on the tip due to dirty injectors
or a clogged air filter can also cause premature
failure of the spark plug.
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Benefits of replacing a bad spark plug
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The primary benefit of replacing a bad spark plug
with a new one is that you get rid of the
starting problems.
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New spark plugs provide a lot of other
performance benefits such as-
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Optimal combustion
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Better fuel economy
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Less harmful exhaust
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Optimal combustion
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The new spark plugs perform well and help to
have a fully functioning combustion system by
sorting out the performance issues.
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Better fuel economy
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Bad spark plugs can reduce the fuel efficiency
and should be replaced at specified intervals to
allow the car deliver better fuel economy.
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Less harmful exhaust
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Regular engine tune-ups and change of spark
plugs results in cleaner emissions and help to
reduce air pollution.
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