General Motors — Cleaning the cyclone type air cleaner element
Maintenance
From a General Motors operator's manual covering: 4.3L 262 CID, 4.3L V6, GMG-643. Check it applies to your exact model before use.
Before you start
- If left loose, dust will be drawn in and the air cleaner will fail to function properly.
Procedure
- Remove the dust cup and withdraw the element; on a double element type do not remove the inner element when cleaning the outer.
- Remove the inner element only when the outer element is replaced and replace both elements at the same time.
- Clean the inside of the case and dust cup and slowly insert the element.
- If the air cleaner is placed horizontally install the dust cup with the assembling direction indicating mark facing upward.
- Make sure the element and dust cup are securely installed.
Source: General Motors operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.