I have a Civic with an OEM AC compressor that was dunked into filthy water to find a nose seal leak. I pointed out that bubbles coming out of compressor = water going into compressor, but no amount of explaining this would convince them that they're wrong.
The nose seal was replaced, the evap was replaced because it was leaking, the system was "vacuumed" for 10 minutes using a fridge compressor, and was charged with refrigerant while flipping the can around, alternating between correctly charging it with vapor and slugging it with liquid to "hurry it up."
The AC runs ice cold, fogs up the air path of the vents on the window. So what?
I say this is not because of any skill or expertise on the part of the monkeys doing the work, but in spite of it.
These systems are engineered to increasingly better tolerances and can withstand a lot of abuse. The scrapyards full of trash compressors being bought and sold across the country are a testament to this.
That compressor saw more wear in that service than it has ever seen during its runtime, along with introducing a horrible amount of non-condensibles that immediately and dramatically reduced its life, as well as that of the drier and every single other component.
But it still works perfectly fine to the naked eye. Consider that you can't generally see a smoker's lungs on the inside, and when you do, it's a horrific sight.
The average consumer neither knows, nor cares, about any of this - nor should they, in fact! If they weren't being scammed. From their perspectives, they want thanda, AC wala brought thanda, great, 5 stars. For now.
If a >10 year old compressor can function to the satisfaction of the customer despite this treatment, the newer AC systems can stand a bit of abuse too. This is what these guys get away with, with the benefit of ensuring repeat business because they well and truly f'ed up their customers' brand new EV HVAC systems long-term.
اندھوں میں کانے راجے
BTW, as I'm sure you're aware, a dirty old fridge compressor with burnt ghee for oil can't pull vacuum worth a crap. Certainly not to a level where moisture even starts to boil off.
Food for thought: AC systems aren't supposed to develop leaks every season. But that's what we're all dealing with. Knowing enough to be dangerous is a thing, and they've got it down to a business model.
Yeah, I've dealt with this problem on my old Ford, the high speed fan relay. Their incompetence, in your case, wasted your time and money, as it did in mine.
My car is old and needs someone who knows what they're doing.
I'd appreciate it, thank you.
