Відео

May you please demonstrate how they use Catalytic cracking

What university bruh? I can't make it out in any of your vids..., kinda rattled fast & not enunciating too well.. But thank you for these videos, they are the best I've found anywhere!

Can you tell me do you keep both gages in the open position or closed when testing.. thanks

Where is the orifice tube? Looks like you can place it anywhere in the line. How do you find it in a dealer installed system? My system was vacuumed and I cannot get new refrigerant to go in. The compressor clutch is always on too. I thought it would be off after vacuuming until it gets enough refrigerant in it.

Is the car running with the ac turned on ? Pl clear that before u het into specific details

I let pressure out high side because I didn't have an understanding. So I need to pull vacuum on high side ?

Professor Info regarding 2002 ford ranger with missing orifice tube. Initially taken to Firestone for inop aircon. They replaced leaking evaporator & installed new accumulator/ dryer. Aircon was working but definitely weaker than normal. Returned it to them twice with no help. Decided to get gauges & do it myself. Readings with orifice tube missing were 43 / 125 psi with 55 degree outlet temp , equalization time 5 seconds. After installing orifice tube readings are 33 / 165 psi with 38 degree outlet temp , equalization time 45 seconds. System working great . Regards Lance

This saved the day. Firestone replaced the evaporator & neglected to install orifice tube. Works great after installing orifice & recharging

2011 highlander new compressor expansion valve condenser charged to proper level using robinair machine ac compressor and fans only stay on above 1k rpm

Excellent information. Thanks for sharing!

Are you measuring voltage to the solenoid on the compressor=duty cycle? (ie 4V = 40% duty cycle)

I love your class ❤, thank you ❤️

This is good knowledge to have when the apocalypse happens

GM used these up into the mid 90s.

26 : 07 and the condensor fan cooling it further bringing the temperature down and taking pressure down

Animation of this issue would be a great teaching method. You could show the restriction in the line at any given place - Condenser/TXV/Drier and so on. That would really help in understanding on how the A/C compressor interacts so to speak with a restriction through pressure or suction. I wish someone would do this.

thanx big help

Awesome! Thanks!

These videos are very helpful, thanks for sharing.

65° ambient temperature your low side should be at about 42 to 45 and your high side should be around 180 or 200... ASE certified here what you're showing me looks like an undercharge system did you verify that it is fully charged did you evacuate it and put approximately 2 lb of Freon in it... Fully charged system with a restriction will suck the low side into a vacuum in the high side will go right up to three 400 PSI I don't know what school you went to or where you got your certifications..

How can you possibly test a system with only 75 PSI on the high side you should have approximately 50 on the low side and 225 on the high side depending on ambient temperature.. those pressures you saw look like a system that did not have enough freon in it I am ASE certified master and I would never try to diagnose a car that doesn't have the correct amount of freon you should have evacuated it and recharged the system to correct amount of freon... If it has a restriction it will pull the low side into a vacuum and the high side will go up to three or 400 PSI ...You're not working on my car pal...

Thanks professor., just the scenario I am having now plus one more symptom - increase rpm slightly and pressure normalizes on both sides and cold air starts blowing. Basically I have no AC at idle or stand still traffick. I would not probably notice the issue but living in NYC, traffic is where average driver spends most of the time during summer. Is this additional detail points to the compressor or blockage?

Thank you for the full detail scenario diagnostic

Thanks. Been exploring this path for a while and soon taking plunge fully. Sent you email thru Pitt-State Univ. Directory.

So will the fan clutch make the fan shake and make the car belt fly off at high speeds? Or is it the water pump?

my low side is 80 psi and high side is 150 only 2 cans freon put in after changing the expansion valve high side gets real hot to touch low side is warm to touch any ideas the compressor turns and spins

Wonderful

Great tip thank you. Could you do a video on testing a dual zone system with two txt?

Hi. Just changed entire AC system(compressor, expansion valve, O-Rings, Condenser, and Schrader valves. On a Honda Accord 2.4 Liter. I vacuumed system out. Purged the yellow line of air, between Freon cans. The Low side reads 25 psi BUT THE HIGH SIDE READS 110-112!! Ambient outside temp was 65-70 dry conditions in AZ. What do the readings mean? I put a thermostat inside the car’s vents and temp read 40f! It was Ice Cold. Did I do everything correctly? Why is the high side not at 150-175psi?

SCOT , LOVED THE INFO . I HAVE SUBSCIBED AMIGO . MY SON HAS A 2019 IMPALA , I THINK HIS IS RUN BY MODULE . HOW DO YOU TROUBLE SHOOT THAT, MY SMALL SCANNER SAYS CLUCH ON BUT NOT SPINNING AND IT SAYS NO REQUEST ON COMPRSSOR BUT ITS ON AUTO W/DIAL ON LOW . DO YOU HAVE A VID ON THAT SIR ?

did the bypass fan works and the A/C pump does kick on and off and air not to cold but recharged and fan still didn't kick on have PO480 code still and won't go away any idea's plz and thank you

Thanks I hope you’re still around … Dealing with a 2011 Jeep compass . The low reads hifh and high a little low . I’ve seen many people having issues with these cars and people mention the tool you’re using to adjust the duty cycle … I’m hoping it’s my txv or overcharge … It was properly evacuated, held vaccum passed leak test and proper ref was replaced . The readings after this was apparently normal readings . However later on the pressures flipped again .

I have a Kia soul 2012. 2.0L and the compressor are leaking a yellow liquid for some time. I've tried to seal it with RTV silicone, but I think is not working. Do you think I need to replace the compressor? This car has only 73 K miles, so why you think is leaking? We are in winter so we don't use it too much for now, but in summer this place will get 105 to 115 degrees. -- I have a quote to replace it for $ 1700.00

Dont go to this school.

Excellent demonstration. This is an excellent teaching tool. Thank you.

thnks

Can an orifice tube get blown out or something because I have a similar situation but I know I'm the only one to work on the car and last time I filled it it was fine

cool video

Awesome video great demonstration

Awesome Video Mr. Norman-Tyler Rogers

I learned how to burn stuff

A Positive Comment

Been in this truck business for almost 50 years and have never seen a gel problem. Ran so many service calls to drivers who claimed to have gelled up, and without exception it's always been water. And I'm in upstate Pa where it gets kinda cold

I have a 2014 silverado and the ac compressor runs but doesn't seem to pump the freon around. Pressure on the low side is greater than high side which is odd. And... the cooling fans does not turn on when I turn the ac on inside the cabin. Fans work fine to cool the engine but not turning on for the ac. I unpluged the Pressure sensor and fans kick high speed. Any thoughts?

Mine is doing that. The compressor works but doesn't move the freon around on the system. Also, the radiator fan won't start when ac is turned on. Any tip on the radiator fan not turning on? I checked all fuses and relays

This is the most refined white beard I have seen

Thanks professor. I appreciate the time it took to make this.

Hi How are you?

Does anyone know how I can tell the difference between mixed gas and diesel?

This is the most entertaining piece of media I’ve seen all week