Nissan Altima L33 | AC Not Cooling | Pressure Abnormal

Low side pressure = 50 psi
High side pressure = 160 psi
This clearly means AC Compressor is worn out and Expansion Valve blocked & hence should be replaced and AC system flushing should be carried out.

[@h22sparkle]

Its your compressor ac checkvalve its on the compressor itself did you change it?

[@mohdali4746]

I have same issu what you don to solve it ??

[@TheMechanicalStig]

Repair done for this case: did full system flushing, replaced compressor and expansion valve.
If you are on a low budget you can try your luck by performing full system flushing and replace compressor solenoid valve and hope it becomes ok. Otherwise, you will have to do the same repair as I did above.
Do share your findings.
Thanks!!

[@mohdali4746]

@@TheMechanicalStig I do all of this . But befor I have leak in the evaporator so I fix not original parts after I have the problem?? Did you thinks it from the evaporator cause not original??

[@G_G_AutoCareLLC]

Same situation 2008!altima gonna try to start over with a empty system.

[@mst3kpimp]

my levels are similar to this and it cools. what do you think the levels should be? if the exp valve is truly blocked why assume the compressor is bad as well?

[@TheMechanicalStig]

mst3kpimp the perfect cooling (grill temp) of this car should be around 2 to 5°C. This is achieved when the LP side is 20 to 25 psi and HP side is approx 125 to 145 psi. If LP is anything above 25 but below 35 possibly your expansion valve is blocked while if it is above 35 you will have to replace both compressor and expansion valve. In both cases you have to do AC Flushing along with the replacement.