Cadillac 2000 DeVille Owner's Manual page 316

3. Remove the air filter element and any loose debris
that may be found laying in the air cleaner base.
4. Replace the air filter element.
Follow these steps to reinstall the air cleaner cover to the
air cleaner housing:
1. When installing the air cleaner cover, be sure to align
the two tabs located on the back of the air cleaner
cover with the two slots on the back of the air
cleaner housing.
2. Push slightly down and forward to slide the air
cleaner cover and housing back into place and close.
3. Reinstall and tighten the two wing nuts on the top of
the air cleaner assembly.
Refer to the Maintenance Schedule to determine when to
replace the air filter.
See "Scheduled Maintenance Services" in the
Maintenance Schedule booklet.
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