Yes to the comp air

Yeah, I got compressed air. Also, HVAC buddy gave me bottle of nitrogen he uses after flushing home ac systems as it is clean and dry. Tried to get his help but he has never done automotive

Any thought on changing the exp valve at the rear evap. or some kind of an u-tube filter near the rear evap? Found expansion valve but not any kind of filter yet.........

Yeah, I got compressed air. Also, HVAC buddy gave me bottle of nitrogen he uses after flushing home ac systems as it is clean and dry. Tried to get his help but he has never done automotive

Any thought on changing the exp valve at the rear evap. or some kind of an u-tube filter near the rear evap? Found expansion valve but not any kind of filter yet.........
To be honest its your money your call its a flip of the coin some have used same parts and added new if the systems clean I would keep what I have.. replace whats needed.. some say its a risk..Kinda the like the r12 to 134a swap I have changed over a few with know problems and one the compressure went out the next day and others are still doing fine depends on how old the system is I guess.. not sure on the u tube filter I have heard other cars having a filter but one could never be found maybe forgot to put in from factory thats my gues...