GMC 2006 Sierra - Manual (Page 437)

Engine Air Cleaner/Filter
(Gasoline Engines)
If your vehicle has a diesel engine, see “Pickup Models”
under “Engine Air Cleaner/Filter” in the DURAMAX
®
Diesel Supplement for the correct inspection and
replacement procedures.
See Engine Compartment
Overview on page 5-14 for
the location of the engine
air cleaner/filter and the air
filter restriction indicator,
if equipped.
When to Inspect the Engine
Air Cleaner/Filter
If your vehicle is equipped with an air filter restriction
indicator, it lets you know when the engine air cleaner/
filter needs to be replaced. On vehicles with a restriction
indicator, you should inspect the air filter restriction
indicator at every oil change and replace the engine
air cleaner/filter when the indicator tells you to.
On vehicles without an air filter restriction indicator,
inspect the air cleaner/filter at the Maintenance
II
intervals and replace it at the first oil change after each
50,000 mile (83 000 km) interval. See Scheduled
Maintenance (Gasoline Engine) on page 6-4 for more
information. If you are driving in dusty/dirty conditions,
inspect the filter at each engine oil change.
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