F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
Compressor Clutch: Adjustments
1. Check the A/C clutch air gap at three equally-spaced places between the A/C clutch hub and the A/C clutch pulley.
2. Remove the A/C clutch. Add or remove spacers between the A/C clutch and the compressor shaft until clearance is within specification.