| Written
by Darren Gow-Brown, the Virtual Mechanic. |
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ROAD
TEST - Checking for warning lamps |
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PURPOSE
Warning
lamps are designed to let the driver know of possible major
problems before they occur. The main lights are brake, oil, charge
and temperature as well as seat belt lights. Gauges will warn if a
problem is starting or getting worse. All warning lights are
designed to turn on with the ignition and off when the engine
starts. Most gauges are designed to start with the reference
points and gradually move to another reference point as the value
will change eg. a fuel gauge, it starts at low and ends up at the
true fuel level.
THINGS
TO LOOK FOR
Warning
lamps and gauges are not to be ignored as they are there to save
you time and money and hopefully from breaking down. A light must
turn on with the ignition. If it doesn't turn on, then the
connection or sender or wiring is faulty and needs to be attended
to. A warning light staying on requires attention A.S.A.P.
A gauge staying on in one position requires attention as it will
not show the correct value when required. Any light or gauge must
be taken on face value and the problem attended to A.S.A.P. That
does not mean when you get home, eg. when travelling at night and
the battery light comes on , pull over somewhere safe and inspect
the problem as it could cause the engine to stop at any place at
anytime.
Overheating
is another signal to stop there and then.. Driving with an
overheated engine may cause hundreds of dollars of damage further
down the track. Two main causes for vehicles breaking down are the
cooling systems overheating and the charging systems not operating
100%. If you take notice of the warning signals, 50% of these
breakdowns are avoidable. Breaking down on a freeway or a busy
road or anywhere at night is considered to be dangerous and should
be avoided at all costs.
IS IT
EXPENSIVE TO REPAIR?
Some sender
units and engagers are expensive costing from $50.00 - $300.00.
Going to the wreckers is another option.
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article ©1999 Virtual Mechanic. All rights reserved. |
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