Buick REGAL 1997 Manual page 292

Air Cleaner
To check or replace the air
filter, loosen the wing nut
on the air duct and lift up
on the two clips located
on the top of the filter
cover, Disconnect the duct
and reposition it while
removing the side cover.
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Operating the engine with the air cleaner 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 off.
Pull out the filter. Be sure to install the air filter and
NOTICE:
install the cover tightly when you are finished.
Refer to the Maintenance Schedule to determine when to If the air cleaner is off, a backfire can cause a
replace the air filter. damaging engine fire. And, dirt can easily get
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See "Scheduled Maintenance Services" in the Index.
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into your engine, which will damage it. Always
have the air cleaner in place when you're driving.
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