Buick Regal: Engine Air Cleaner/Filter
When to Inspect the Engine Air Cleaner/Filter
For intervals on changing and inspecting the engine air cleaner/ filter.
How to Inspect the Engine Air Cleaner/Filter
Do not start the engine or have the engine running with the engine air cleaner/filter housing open. Before removing the engine air cleaner/ filter, make sure that the engine air cleaner/filter housing and nearby components are free of dirt and debris. Remove the engine air cleaner/filter. Lightly tap and shake the engine air cleaner/filter (away from the vehicle), to release loose dust and dirt. Inspect the engine air cleaner/filter for damage, and replace if damaged. Do not clean the engine air cleaner/filter or components with water or compressed air.
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2.0L L4 Turbo Engine
To inspect or replace the engine air cleaner/filter:
1. Remove the six screws on top of the engine air cleaner/filter housing.
2. Lift the filter cover housing away from the air cleaner/filter housing.
3. Pull out the filter.
4. Inspect or replace the engine air cleaner/filter.
5. Reverse Steps 1-3 to reinstall the filter cover housing.
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3.6L V6 Engine
To inspect or replace the engine air cleaner/filter:
1. Remove the seven screws on top of the engine air cleaner/ filter housing.
2. Lift the filter cover housing away from the engine air cleaner/filter housing.
3. Pull out the filter.
4. Inspect or replace the engine air cleaner/filter.
5. Reverse Steps 1-3 to reinstall the filter cover housing.
Warning: 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 helps to stop flames if the engine backfires. Use caution when working on the engine and do not drive with the air cleaner/filter off.
Caution: If the air cleaner/filter is off, dirt can easily get into the engine, which could damage it. Always have the air cleaner/filter in place when driving.
READ NEXT:
Cooling System
The cooling system allows the
engine to maintain the correct
working temperature.
When it is safe to lift the hood:
2.0L L4 Turbo Engine
Engine Cooling Fan (Out
of View)
Coolant Surge Tank and
P
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not d
Engine Overheating
The vehicle has an engine coolant
temperature gauge and an engine
coolant temperature warning light on
the instrument cluster to warn of
engine overheating.
If it is decided not to lift the hood
when
SEE MORE:
TPMS Reset Procedures
NOTE: The TPMS sensor Relearn procedure must be performed after every
tire
rotation, BCM replacement, or sensor replacement.
When the tire pressure monitor system detects a significant loss, or gain of
tire pressure, the tire pressure
monitor indicator icon is illuminated on the instrument cluster
Line Pressure Check
Special Tools
EN-21867 Pressure Gauge
EN-21867-50 Transmission Line Pressure Adapter
For equivalent regional tools, refer to Special Tools.
Line Pressure
1. Apply the parking brake and chock the wheels.
2. Install an SLT current measuring machine.
If the machine is not available, installation
