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Description of Emission System Maintenance Jobs
The composition of exhaust emissions is influenced not
only by the special emission control equipment, but also
by various engine components and their adjustments.
Therfore, emission system maintenance must include
these engine components. Some maintenance jobs are
actually only tests. They are important however, because
they allow early detection of discrepancies which can later
lead to increased exhaust emissions. It is generally less
expensive to have such items adjusted immediately rather
than allowing them to contribute to costly repairs.
The maintenance intervals have been determined so that
the vehicle, under normal conditions, should operate
properly between services.
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