- Service the air compressor air strainer filter, if equipped. Refer
to 
Air Compressor Air Strainer Filter Replacement 
.
 
- Check all of the air compressor bracket fasteners for looseness.
 
- Tighten the air compressor bracket fasteners as needed. Refer
to 
Fastener Tightening Specifications 
.
 
- Check the air compressor discharge pipe for carbon restriction.
 
- Clean or replace the air compressor discharge pipe, as needed.