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Hi. I would be more than happy to assist you with your inquiry today.
To make sure I understand your concern, you say your A/C is fully charged, but your compressor is cycling erratically. Is this correct?
OK. There is a thermistor inside the evaporator case that is inserted into the evaporator. It caused similar problems in many Nissan models including the '01 Frontier. The thermistor is red and has a small two wire connector.
If your pressures are OK and you know for sure your A/C is charged with the proper amount of oil and freon, check the thermistor.
how can i change it, will need to pull dash, or other.
You can snake it out of the case without pulling everything apart. You will need a pair of long needle nose pliers.
Remove the screws attaching the lower evap case to the upper case. Pry them apart and you should see the thermistor in there. It'll be pretty tight, but it's better than taking everything down.
were do i get this part. dealer.
You can definitely find it at the dealer. Possibly aftermarket.
I can provide you with a link to a site with pictures from a 2000 Xterra. It's pretty much the same thing.
No problem. If there's anything else I can do, don't hesitate to ask.