Buick RIVIERA 1993 Manual page 230

Air Cleaner
As you face the front of the vehicle, the air cleaner is in
the front right section of the engine compartment. There
is a filter inside the air cleaner.
Refer to -the Maintenance Schedule
to
detemine when
to replace the air filter.
A
I
A
CAUTION:
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
I
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.
I
the air cleaner is off, a backfire can cause a
See "Scheduled Maintenance Services" in the Index.
228