Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Hi my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.
If there is to much oil in the system this causes issues with the compressor operating properly with ac pressures as well as causes a restriction or flow issue in the ac accumulator.If you can I would evac the system again which should draw out most of the oil then recharge without oil to see if this resolves the fault here.You will still have oil in the accumulator as well as compressor when you evac so this wont harm the system.
If this does not resolve the fault the accumulator may need replaced.
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O.k.,sounds good.Let me know how this turns out here when your ready.
This is a tough one for me to answer myself here but others here may be able to help more.
I will open your question up for others here to see if someone else can assist further on this as there may be others here that may have more info on what to check or do with this issue.I hope you can get this resolved with ease.No need to reply to my last post here unless it is a last resort as it will keep your question locked to me and others will not be able to view it.If you feel you want to continue to work with me on this feel free to reply at any time but keep in mind in some cases it can be difficult to fully diagnose or help repair this without seeing your vehicle.
Is the AC condenser Cooling fan coming on?
Your low pressure side is too low. You said you already replaced the expansion valve, which yes could cause this problem.
Replace the compressor.
On a fully charged system, insufficient low-side pressure is normally the result of a restriction. A clogged orifice tube is a common cause of such problems. The high-side pressure may be elevated as the compressor attempts to force the refrigerant past the obstruction. This will quickly starve oil flow to the compressor and cause a catastrophic failure.
With any restriction, the source of the debris must also be considered.
How does the condenser look?
Could also be a compressor problem.