Chevrolet 2000 Express Van Owner's Manual page 271

2. Remove the three bolts holding the air cleaner
housing in place.
3. Remove the full air housing.
4. Unsnap the three clips.
Then tilt the top cover up and back to expose the
filter element.
5. Install a new filter element with the folds in the
down position.
Reverse Steps 1 through 4 to replace the air cleaner.
See "Normal Replacement Parts" for the proper filter
to use.
Refer to the Maintenance Schedule to determine when to
replace the air filter and crankcase ventilation 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.
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