All perfect still bad cooling, Comments experts

Especially looking for Aryaan's comments

History:

Its a ee90 with 12 valve 1300cc petrol/cng.

Replaced:
Condensor with original 2nd hand one in gr8 condition, serpentine one.

Evaporator: replaced with XE Corolla's one in outstanding conditon, its a multi flow one and cools better comes with original denso expansion valve.

Blower: Replaced.

Compressor: Replaced with 134 one.

All lines replaced with the ones comes in 134 ones. so no leakage.

Dryer: using new steel type one.

Gass: 134a Success (says the gas is japanese)

I have changed 4th compressor this week.

Problem is the ac is not cooling at idle and on running its good the cooling is good enough but on idle it loses the cooling.

1st compressor had same problem. Low side suction 65.


2nd one had same problem plus extra load on engine. Low side 60


3rd one had great cooling at idle and on run but it became very noisy on idle (The Kir Kir sound that vanishes at 1500 RPM though it worked fine but i couldent stand this noisy ahh my perfectionism kinda liking in a oldie). (This is when we put again new dryer and replaced the expansion valve to be sure its not the problem) Low side touched 40.


Today 4th one went in let me telll you the compressor are denso 134 ones and gives good pressure if you check them in desi way :p.
4th one at start was not cooling at all and after like 5 to 10 mins it started cooling but the low side pressure was not going below 60, though it should be at 40 or less.
He tried everything but it was not going below 60 to 65 so i end up again with same a/c that starts cooling at speed and loses at idle.

Let me also tell you we are also using proper compressor oil. In a day or two we gona try the 5th compressor haha now the pathan is also scraching his head.

I am not paying anything to the compressor guy or the a/c technician bcoz they give gurantee so as long as this isnt perfect they will keep trying.

let me also tell you i got double fan radiator in my car that got two stage fan speed working perfectly fine. the condensor fan i installed relay and its blowing amazing air.

Xulfiqar i am especially looking for your comments, BTW my engine mechanic thinks my a/c technican is not servicing the system and its clogged but the technicans says if its clogged than why it cooled in the 3rd compressor and servicing will not help.

if i ask him to service whats the correct method?