Essential Tips to Perform Ignition System Checks

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Essential Tips to Perform Ignition System Checks
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The job of the ignition system is to ignite the
fuel-air mixture in the combustion chamber at the
correct time to ensure efficient combustion and
power generation by the engine.
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And if your car is not starting, one of the
common reason can be an ignition system problem.
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Therefore, always inspect the ignition system as
it takes only a few minutes and guards against a
frequent cause of the breakdown.
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In order to diagnose problems in the ignition
system, you can check the following important
parts of the engine.
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Spark plugs
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If your spark plugs are corroded, dirty or are
not spaced properly, then it could possibly cause
ignition failure.
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Start with a spark test to check the overall
function of the ignition system.
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And if you do not get a spark at the wire, then
check the coil and ignition system.
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Coil
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To check the coil, disconnect the coil to
distributor wire from the distributor, connect it
to the spark plug tester and then check for spark
by cranking the motor.
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If you find there is the spark at the coil, then
the coil is not the issue.
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You can also test the coil with a voltmeter and
the reading should be within 0.5 volts of battery
voltage.
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Spark plug wires
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If the spark plug wire between the coil and
distributor goes bad, then you will lose spark on
all cylinders and it will cause complete ignition
failure.
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The easiest way to test your spark plug wires is
to put a digital ohm meter on them and check the
resistance.
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Check that the low tension connections are tight
and free from corrosion and there are no cracks,
kinks or breaks.
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Distributor
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In the case of the distributor, first check the
cap and the rotor as they wear out more
frequently and then inspect the distributor
itself.
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You can test the distributor with the help of an
ohm meter.
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Also, note the condition on the pickup coil
inside the distributor and this can be done by
using the service information for your car.
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Ignition module
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Also, check the ignition module or the wires that
connect it to the other parts of the system.
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Make sure that the wires are not broken and the
connection terminals are not corroded.
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Make sure that the coil is fixed firmly in its
mountings and also check it using a meter for
continuity.
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