Chevrolet MONTE CARLO 1998 Manual page 239

Air Cleaner
To check or replace the air filter, remove the four screws
and pull off the cover.
Pull out the filter. Be sure to install the air filter and
install the cover tightly when you are finished.
Refer
to
the Maintenance Schedule to determine when to
replace the air filter.
See "Scheduled Maintenance Services" in the Index.
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