AC still not working, but possible solution?

There is a receiver/dryer cartridge that should be replaced whenever the system's been opened.

If the old compressor ground itself into shavings, those are all through the system, and at least the condenser and maybe expansion valve might also get replaced, and the rest all flushed. @lech auto air conditionin would know more.

 

Hmm.... Yes! That would definitely be a more reasonable explanation than refilling system based on pressure than weight as to why people who have their AC replaced have it fail again fairly quickly.

 

Like chap said receiver dryer always whenever the system is opened unless you like replaced it last week and a hose blew this week you'd be okay vacuuming down and recharging it back up after you fix the hose leaving the receiver dryer that's a week old. The best thing you can do with these types of compressors and all this listen to them when you hear that thing start running into Oblivion just turn it off and find out why You're either low on gas something like that is trying to pump a lot of apparently nothing when this is going on. So the minute you hear your system running like crazy anything like that shut it off and see what you think You're probably low on freon to be honest about it Don't keep running it because once you run that shrapnel through your system then you're getting a condenser the metering valve and all the other things that get zapped from that shrapnel it's really bad You don't want that to happen You want to catch that before it explodes when it starts running wild it's close

 

From a mechanics point of view and possibility loss of money, most will not put on junkyard parts, but some will.

When, putting on a junkyard, part myself, including many other shops will give absolutely no warranty, no guarantee at all whatsoever.

For the ones who choose to give some sort of warranty or guarantee even if the junkyard says they will give a 90 day warranty or guarantee will that cover the labor ?
Because I am not going to change a part for free as an automotive shop.

I know my new DENSO part will not and has not ever failed in my entire life and I’ve literally installed thousands not tens and not hundredths but literally thousands of OEM parts. Or had my shots to work under me, or with me install them.

When it comes to Toyota and DENSO Parts, I always tell everybody if it is defective out of the box, not from freight damage I will do the whole entire job for free,

If it is an aftermarket part or a junkyard part, I will double charge you for every part and labor . That you choose on the advice of a friend and neighbor, a cousin. Hey, ask Mechanic hey brother’s uncle twice removed, married to your neighbors dog.
If they gave the advice, why are they not installing it?
If somebody else gives advice to use it, then they are going to be the one who backs up the losses if it fails.
I’m only speaking from the sense of running a business and staying in business to pay your employees.

for warranty any compressor replaced expansion valve replaced if the compressor was not burnt up but only electrical failure desiccant bag gets replaced

If it’s a burn up burnt oil, metal flakes flush all lines in hoses

If there is a hose with a muffler
That hose with a muffler gets replaced not flushed
Condenser gets only replaced after a burn out.

Burnout scenario number one after a burn out compressor was

If you’re starting up the AC and using the canned method and you just have a little bit of vapor in the system

You’re calling for maximum cold
That compressor will wind up to 6000 RPMs or more
But because you’re using the little cans, there’s not enough liquid refrigerant in the system to carry oil back to the compressor and there’s not enough refrigerant to carry nice cold vapor that is latent with oil. Missed to keep the compressor alive.

And sometimes not all the times the compressor gets roasted upon the attempt to fill up the system right after a new compressor is put in this does not happen often, but it does happen

Sometimes the technician just caused enough damage with scoring metal to metal that it doesn’t make noise right now. The damage has been started with the AC works for a day a month a couple months, and then burns out later on from the damage to bearings that was caused the first day the compressor was installed.

99% of the technicians out there don’t know this.

They think because they installed the compressor a couple months ago and it burnt out later that it was not their fault. BUT IT WAS !!!!….

You shoulddo heat pumps, and the guys do not understand the difference of a heat pump plus how the accumulator affects the oil return, and the oil quantity recharge.

The Prius prime has been costing literally thousands of dollars to repair my mistakes

Nothing can be flushed. No individual components that AC accumulator has no individual parts available.

There is no cleaning it out or flush it out

That $1600-$2600 accumulator assembly must be replaced every time even if you just got finished putting in a brand new compressor 30 minutes ago can you print up the new one do you have to replace it all again

I have been receiving many text messages, emails and phone calls, especially from used car dealers about problems with the Prius prime and burning up compressors because they don’t understand and their old school.

For the ones you get it done right the first time they’re lucky but for the mini who don’t they don’t want to face the fact that they are the problem due to lack of knowledge.

Air-conditioning has no forgiveness

Even if you get it blowing cold now and working if something was done wrong a year or two later, the compressor can burn out from what you didn’t do right the first time

Air conditioning compressors outlast the life of a Prius in a properly charged operating system that is never allowed to go low on refrigerant

The compressors outlast the life of the motor, the outlast the life of the transmission

Just on the people who don’t charge them properly and don’t charge them when they should be are the unlucky ones

Compressors do not feel especially these compressors they’re extremely durable, extremely reliable

Compressors are murdered they do not die

And it’s due to the customers not taking care of the cooling problem when it first service and keep trying to use them

And then the other half of the problems are the technicians who use the little cans and guess

A technician should be able to fill the whole entire refrigerant charge in a Prius on the high side in liquid in about 15 seconds with the engine off with the car off

If he cannot, that means he does not know what he is doing. End of story no debate no discussion..

When a brand new system is properly charge 100% with liquid.
The absolute nanosecond window on button started in that compressor first starts to rotate and build.

Oil and a cool flow of refrigerant is coming back to that brand new compressor keep it at 100% oiled and keeping it 100% cooled to give it a long life that will outlast the entire vehicle.
The so-called professionals who cannot comprehend this, are the problem.

Another thing the majority of technicians are not aware of is that the new YF refrigerant is much more corrosive, and becomes acidic with less exposure to moisture in the air.
I so it’s slowly starts eating the metal from the inside out. This takes a long period of time, but it was caused by technicians who worked on your vehicle in the past..

So if you truly have metal flake in the compressor, it’s in your condenser you have burnt oil because I have to get so hot. It goes way past the point of breaking down and oil..

So the oil inside the system is broken down in contaminated, and that spread throughout the whole entire system.

 

So many 2004 posts lately.

It probably has the most common issue a leaking evap coil under the dash. If your unaware and continued to run the system when it was very low on refrigerant than it needs a compressor too.

To replace both will be more than $2000 maybe more if the compressor grenaded.

 

So then your heater problem was a fan problem heat was probably coming in the cabin when you're flying down the road on a state highway at safe 50 plus miles an hour You would feel heat if on the fresh mode not recirculate but had no fan apparently your mechanic replaced the fan and then you had blower heat standing still blower on high heat coming out the vents? So now you have a fan blowing over your heat and AC evaporator core. So once you get the compressor to pump the gas up and make the cold you should have cold again unless like folks are saying here there is a leak in that evaporator than the whole dash has to come apart blah blah blah.