Panel Style Air Filter
New filters should be free of rips, tears, punctures and excess
contamination. Filters should be dry and the edges should be straight.
Inspect filter media for tears, rips or punctures, which can create
paths for contaminants to enter the engine.
| Contaminated & Collapsed Air Filter
Inspect the filter media for excess contaminant accumulation, which can
restrict airflow to the engine. Should the air filter become completely
restrictive to airflow, it may collapse inward on itself. Filter
collapse not only destroys the filter, it also allows free bypass of
contaminants into the engine. | Moistened Air Filter
Inspect the filter for wavy pleats, which can indicate possible
moisture in the air intake system. Excess moisture in the air intake
system can damage the filter and reduce its performance.
| Pinched Air Filter
Carefully inspect the filter's rubber seal for signs of being pinched
in the filter housing. A pinched seal indicates the filter may have been
improperly installed, which can cause excess contaminants to bypass the
filter and enter the engine.
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