Component Tests and General Diagnostics

Clutch Inspection





- Check the rotor pulley bearing play and drag by rotating the rotor pulley by hand. Replace the rotor pulley with a new one if it is noisy or has excessive play/drag.
- Release the compressor clutch connector from the connector holder.





- Check the field coil for resistance:

Field Coil resistance: 2.6-3.2 ± 0.15 ohm at 20°C (68°F)

If resistance is not within specifications, replace the field coil.





- Measure the clearance between the rotor pulley and armature.
If the clearance is not within specified limits, the armature must be removed and shims added or removed as required.

Clearance: 0.35 - 0.65 mm (0.014 - 0.026 in)





NOTE: The shims are available in four sizes: 0.1 mm, 0.2 mm, 0.4 mm and 0.5 mm of thickness.