GM Service Manual Online
For 1990-2009 cars only

A restricted or leaking air intake system could cause loss of power and engine damage.

    • Inspect the air cleaner filter for damage or excessive dirt accumulation. Replace if necessary.
    • Inspect the air inlet elbow and CDR tube for damage or cracks. Replace if necessary.

Refer to Maintenance and Lubrication of the appropriate service manual for change intervals. Operation of the vehicle in dusty areas will necessitate more frequent replacement.