GM Service Manual Online
For 1990-2009 cars only

See Engine Compartment Overview for the location of the engine air cleaner/filters.

When to Inspect the Engine Air Cleaner/Filters

Inspect the air cleaner/filters at the Maintenance II intervals and replace them at the first oil change after each 50,000 mile (83 000 km) interval. See Scheduled Maintenance for more information. If you are driving in dusty/dirty conditions, inspect the filters at each engine oil change.

How to Inspect the Engine Air Cleaner/Filters

To inspect the air cleaner/filters, remove the filters from the vehicle and lightly shake the filters to release loose dust and dirt. If the filters remain caked with dirt, new filters are required.

To inspect or replace the filters, do the following:


    Object Number: 928318  Size: B3
  1. Move the clasps on the top of the engine air cleaner/filter cover forward to unlatch the cover.
  2. Lift the front of the cover at an angle and remove. This is necessary due to the four tabs located on the rear of the cover.
  3. Remove the engine air cleaner/filter element and any loose debris that may be found in the air cleaner base.
  4. Inspect or replace the filter.
  5. Repeat the procedure for the second air cleaner/filter.

Follow these steps to reinstall the covers to the engine air cleaner/filter housings:

  1. Align the four tabs located on the back of the cover with the three slots on the back of the housing.
  2. Push the cover slightly down and towards the engine to engage the tabs in the slots and align the two wing screws.
  3. Engage and tighten the two clasps on the top of the engine air cleaner/filter cover.

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 helps to stop flames if the engine backfires. If it is not there and the engine backfires, you could be burned. Do not 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 the engine, which will damage it. Always have the air cleaner/filter in place when you are driving.