Oldsmobile 1999 Aurora - Manual (Page 255)

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6. Remove the air filter.
7. Install the new air filter and reverse all of the steps to
reinstall the cover, electrical wires, hose and clamp.
Be sure the tabs of the air cleaner cover fit into the
slots of the air cleaner housing. Then make sure both
clamps are fully engaged.
Refer to the Maintenance Schedule to determine when to
replace the air filter.
See “Scheduled Maintenance Services” in the Index.
CAUTION:
Operating the engine with the air cleaner/filter
off can cause you or others to be burned. The air
cleaner not only cleans the air, it stops flame if
the engine backfires. If it isn’t there, and the
engine backfires, you could be burned. Don’t
drive with it off, and be careful working on the
engine with the air cleaner/filter off.
NOTICE:
If the air cleaner/filter is off, a backfire can
cause a damaging engine fire. And, dirt can easily
get into your engine, which will damage it.
Always have the air cleaner/filter in place when
you’re driving.