The A/C compressor clutch cycles rapidly on and off
Diagnostic Procedure
Probable cause: A/C system is very low on refrigerant, indicating a possible leak
Check low idle first, then check data list A/C pressure sensor
Do the refrigerant leak check and repair any leaks. Replace the dryer desiccant, then recharge the system to specifications
Also Check for
If there is no leak and the refrigerant level is normal, do the A/C compressor clutch circuit troubleshooting, and look for an intermittent problem