The evaporator is the most common leak area pin holes to be exact. It leaks in cabin most time you will taste it if it’s leaking. It’s in the dash board very labor intensive this is why people keep buying over the counter refills for 134. The new R1234 is very flammable and if you smoke in your car with this kind of leak guess what happens.
Then why is my ac clutch not engaging, but it moves okay not freely but it's not seized. When I freon nothing happens it goes in but not blowing cold. Also when I turn my ac on it just blows hot air from outside or warm air. I really want my ac fixed I'm tired of driving in the heat
How would one know if there is a compressor issue or an expansion valve issue? Symptom: Car is not cooling better than 65F at the vents on a hot day. It gets to 55F while driving. Condenser fan spins fine, system was evacuated, vacuumed, and recharged properly, drier replaced, but still the same issue. Low pressure 35, high 175 on 96F ambient temps. High pressure low and low pressure normal, seems like.
The only question this video left me with is what happens to the condensation on the evaporator side in the passenger compartment? I know from window type air conditioners in a house that it creates a lot of water and that water drips outside, but in a car where does that water drip?
But HOW is the pressure made by the high rpm compressor mantained? Is the pressure regulator an mechanic piece that moves preventing it from too little or too high presure? Thanks
The compressor doesn't increase the pressure of the refrigerant. It "superheats" the refrigerant into a liquid, forcing more energy into it so that it can remove more heat from inside the conditioned space. It is then "subcooled" in the condenser and turned back into a gas when the heat moves from the refrigerant into the outside air. The pressures simply just balance out between the hot and cold sides of the system.
@@user-et5mz5ex9s What are you talking about? The pressure absolutely does increase. So does the temperature. This is why you have a low pressure and higher pressure side to every single refrigeration system. What do you think a manifold gauge measures? In a car the pressure is regulated by cycling the compressor on and off. The magnetic clutch is actuated and released to couple the pulley which spins with the engine to the compressor. It doesn't hold it exactly at one pressure, it varies a bit, but the expansion valve help to regulate the flow in the evaporator to keep cooling consistent. The high side pressure is measured by the sensor.
Its kind of missleading. The system does not absorb heat from the cabin. It absorbs heat from the air that flows from outside when you turn the fan on.
I think only one thing go wrong a clear ac refrigerant. but refrigerant can dirt in many ways. if dirty blicked system and overheat compresor pistons and seal
The diagram is great but the explanation is a bit misleading. More than just oversimplifying, you used the wrong words to several places which will give novices the wrong impression.
As an Hvac tech I always admire the compressors for vehicles, specially the 134a. They're very vell designed.
The evaporator is the most common leak area pin holes to be exact. It leaks in cabin most time you will taste it if it’s leaking. It’s in the dash board very labor intensive this is why people keep buying over the counter refills for 134. The new R1234 is very flammable and if you smoke in your car with this kind of leak guess what happens.
What does “very flammable” mean? It has a relatively narrow UFL and LFL.
@@yolo_burrito means cigarettes ignite it. Leak out your vent while you’re smoking you go up in flames. Look it up.
@@gunguy8348 it’s just flammable like Natural Gas not very flammable like acetylene.
Fake news my friend. Its just propaganda
I'm now a certified AC technician with 20 years experience
Then why is my ac clutch not engaging, but it moves okay not freely but it's not seized. When I freon nothing happens it goes in but not blowing cold. Also when I turn my ac on it just blows hot air from outside or warm air. I really want my ac fixed I'm tired of driving in the heat
@@victorstrand3422theres a button on your cars dash that says "A/C" push it to enable it.
@victorstrand3422 something is not plugged in correctly or a motor under the dash is broken
@@victorstrand3422 take it to a mechanic. you’ll need several tools to check the system. Not worth getting them unless you work on cars everyday.
Very good and simple explanation!
How would one know if there is a compressor issue or an expansion valve issue? Symptom: Car is not cooling better than 65F at the vents on a hot day. It gets to 55F while driving. Condenser fan spins fine, system was evacuated, vacuumed, and recharged properly, drier replaced, but still the same issue. Low pressure 35, high 175 on 96F ambient temps. High pressure low and low pressure normal, seems like.
Beautiful
Can you make a video about car ac compressor control valve how does it work ?
will be helpful❤
Hope you share soon..
Very informative 👏🏻
nice video bro,
short and simple yet precise,
but it seems to lack some enfo, anyway its still good 👍
Great video
Thanks for your video
感恩了解，謝謝分享！
The only question this video left me with is what happens to the condensation on the evaporator side in the passenger compartment? I know from window type air conditioners in a house that it creates a lot of water and that water drips outside, but in a car where does that water drip?
Exhaust
It drips out, usually through a hose to the ground.
Drips right below your car. Park in a humid climate and you'll see water below your car.
Ever car with AC has a small tube that lets the water drip under the car
But HOW is the pressure made by the high rpm compressor mantained? Is the pressure regulator an mechanic piece that moves preventing it from too little or too high presure? Thanks
The compressor doesn't increase the pressure of the refrigerant. It "superheats" the refrigerant into a liquid, forcing more energy into it so that it can remove more heat from inside the conditioned space. It is then "subcooled" in the condenser and turned back into a gas when the heat moves from the refrigerant into the outside air. The pressures simply just balance out between the hot and cold sides of the system.
@@user-et5mz5ex9s What are you talking about? The pressure absolutely does increase. So does the temperature. This is why you have a low pressure and higher pressure side to every single refrigeration system. What do you think a manifold gauge measures?
In a car the pressure is regulated by cycling the compressor on and off. The magnetic clutch is actuated and released to couple the pulley which spins with the engine to the compressor. It doesn't hold it exactly at one pressure, it varies a bit, but the expansion valve help to regulate the flow in the evaporator to keep cooling consistent. The high side pressure is measured by the sensor.
This system always breaks lmao. Would rather have my engine break than one part of this system go wrong. Especially on Florida.
Its kind of missleading. The system does not absorb heat from the cabin. It absorbs heat from the air that flows from outside when you turn the fan on.
What about when it is set to "recirculate"?
Sir the expansion diaphragm is controlled by what? Because I don't see thermal bulb.
By the pressure in the system
The thermal bulb is a part of the H valve
temperature bro,
there's an element on the stem that is connected to the diaphram that reacts with the temperature, just like the thermostatic valve
Couldnt find the issue fill the feron but still hot air comp is engeed
Niymy❤
I hate car ac system there are so many things that can go wrong
I think only one thing go wrong a clear ac refrigerant. but refrigerant can dirt in many ways. if dirty blicked system and overheat compresor pistons and seal
Air conditioning systems are overall pretty reliable
@@tgw230 yea only the windows AC
@@dd___dcenjoy melting, I’ll keep my AC thanks.
😂
The diagram is great but the explanation is a bit misleading. More than just oversimplifying, you used the wrong words to several places which will give novices the wrong impression.