Cadillac 1999 Eldorado Owner's Manual page 262

Engine Air Cleaner/Filter
The air cleaner is located next to the windshield washer
fluid reservoir on the driver's side of the engine. Be sure
the engine has cooled before following these steps to
replace the air cleaner filter:
6-16
3. Disconnect the air duct from the mass airflow sensor.
1. Disconnect the Intake
Air Temperature (IAT)
sensor from the base of
the air cleaner.
2. With a screwdriver,
loosen the air duct clamp,
which is located at the
mass airflow sensor end
of the air duct.
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