Professor Pentane

Professor Pentane

The Professor Pentane channel is full of micro-lessons about automotive technology and careers in the automotive industry.

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  • @jrockaz548
    @jrockaz548Күн бұрын

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

  • @OffTheGridAdventures
    @OffTheGridAdventures3 күн бұрын

    Excellent information. Thanks for sharing!

  • @RomeB-qe4mf
    @RomeB-qe4mf5 күн бұрын

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

  • @patrickguillory-yy2gu
    @patrickguillory-yy2gu7 күн бұрын

    I love your class ❤, thank you ❤️

  • @monkeyboy8me
    @monkeyboy8me9 күн бұрын

    This is good knowledge to have when the apocalypse happens

  • @jamesharris690
    @jamesharris6909 күн бұрын

    GM used these up into the mid 90s.

  • @ProfessorPentane
    @ProfessorPentane9 күн бұрын

    Thanks for the update James. I worked for GM up to 93, but I lost track of the R4 use. PP

  • @lucientjinasjoe1578
    @lucientjinasjoe157810 күн бұрын

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

  • @tedhartman8049
    @tedhartman804912 күн бұрын

    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.

  • @gillypoof
    @gillypoof13 күн бұрын

    thanx big help

  • @ronmelliad7327
    @ronmelliad732715 күн бұрын

    Awesome! Thanks!

  • @jesseruiz2337
    @jesseruiz233715 күн бұрын

    These videos are very helpful, thanks for sharing.

  • @georgethomas4195
    @georgethomas419519 күн бұрын

    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..

  • @ProfessorPentane
    @ProfessorPentane19 күн бұрын

    Well George, your comments are rude and unprofessional for an ASE A7 certified technician. I hate to embarrass you, but you have the wrong information. When there is a low side restriction, like at the TXV, the low side will go into a vacuum and high side will also drop. I have lots of videos to prove this on my channel, you should watch a few. Try putting Co2 or use a Duster Can of R-152a on the power dome while the A/C is on. The TXV will close and show you the low side drops and high side also drops. A restricted FOT will also not cause the high side to go to 400 psi. You are simply wrong my friend and I can prove you wrong . Just watch my video titled "How to test the H valve with Co2. You made my point on why I have this KZread channel, there is simply a lot of wrong information out there. Just to give you some of my street credit, I have been teaching A/C classes for over 30 years. I have taught for Chrysler for 15 years and 1,000 of techs have attended my classes. I am a current Professor of Automotive Technology at one of the top ranked automotive schools in the USA. Yes, I am A7 certified. I am the expert in A/C! Plus, I am writing a book on automotive A/C. Do your have more street credit than I, are you an A/C engineer? I don't normally respond to the hundreds of post on my channel, but you quested my credentials. Professor Pentane.

  • @georgethomas4195
    @georgethomas419519 күн бұрын

    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...

  • @vadimlazovskiy7442
    @vadimlazovskiy744220 күн бұрын

    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?

  • @jimmygomez3940
    @jimmygomez394024 күн бұрын

    Thank you for the full detail scenario diagnostic

  • @coachgeo
    @coachgeo24 күн бұрын

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

  • @TmP45
    @TmP4528 күн бұрын

    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?

  • @bigwaves2824
    @bigwaves2824Ай бұрын

    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

  • @TEKNIKO65
    @TEKNIKO65Ай бұрын

    Wonderful

  • @tomryan9616
    @tomryan9616Ай бұрын

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

  • @michaelboibodas
    @michaelboibodasАй бұрын

    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?

  • @ProfessorPentane
    @ProfessorPentaneАй бұрын

    Hi Michael, You caught me at a good time as I do not have time to respond to all of the questions from my KZread videos. Your gauge readings could be normal for a milder 70F dry day with. Was the engine at full operating temp? That will cause the reading to be lower if the engine is not hot. Try switching to the fresh air mode to see if the extra heat load will raise the high side pressure a bit. But I think over 150 on a mild day is normal if you are blowing out 40F. You will not know for sure until it gets nice and hot in AZ. Thanks for watching, P.P.

  • @user-si9iy9ch7e
    @user-si9iy9ch7eАй бұрын

    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 ?

  • @suzukirider3980
    @suzukirider3980Ай бұрын

    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

  • @pixeldennis2862
    @pixeldennis2862Ай бұрын

    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 .

  • @pixeldennis2862
    @pixeldennis2862Ай бұрын

    What’s this scan tool and what are the electrical systems I need to check?

  • @irisbaez1972
    @irisbaez19722 ай бұрын

    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

  • @monkeybar88
    @monkeybar882 ай бұрын

    Dont go to this school.

  • @johnwoolfrey5093
    @johnwoolfrey50932 ай бұрын

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

  • @ungoofaaruregionalhospital5189
    @ungoofaaruregionalhospital51892 ай бұрын

    thnks

  • @james10739
    @james107392 ай бұрын

    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

  • @alexbieniek8622
    @alexbieniek86222 ай бұрын

    cool video

  • @jackgaries1496
    @jackgaries14962 ай бұрын

    Awesome video great demonstration

  • @tylerrogers8712
    @tylerrogers87122 ай бұрын

    Awesome Video Mr. Norman-Tyler Rogers

  • @tens8635
    @tens86352 ай бұрын

    I learned how to burn stuff

  • @jstw8
    @jstw82 ай бұрын

    A Positive Comment

  • @joecummings1260
    @joecummings12602 ай бұрын

    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

  • @ILIKE2FIXSTUFF
    @ILIKE2FIXSTUFF2 ай бұрын

    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?

  • @160811kp
    @160811kpАй бұрын

    Did you ever figure it out ?

  • @ILIKE2FIXSTUFF
    @ILIKE2FIXSTUFFАй бұрын

    I replaced the expansion valve and went ahead and replaced the compressor that had a small leak. I really think the expansion valve was stuck or some. The fans will not engage with too low of pressure on high side. At least It is what I could think of. As soon as I replaced the expansion valve and compressor and refueled, it kicked in and works perfectly now.

  • @selvinramirez5585
    @selvinramirez5585Ай бұрын

    Same problem I did exactly what you did with the pressure sensor, I’m go ahead and replaced the expansion valve first before I go with the compressor since the compressor it’s on and I really hope it’s not the compressor 😥$$$ I’ll come back next 2 weeks

  • @ILIKE2FIXSTUFF
    @ILIKE2FIXSTUFF2 ай бұрын

    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

  • @ChiefColeman
    @ChiefColemanАй бұрын

    My Cruze is doing the same thing. Fuses are all good too

  • @ILIKE2FIXSTUFF
    @ILIKE2FIXSTUFFАй бұрын

    Check the expansion valve if there is one there. If freon is good compressor kicks and too much pressure. Cold be the expansion valve.

  • @MasterBuilderofTruth
    @MasterBuilderofTruth3 ай бұрын

    This is the most refined white beard I have seen

  • @AWSOMEGUY9
    @AWSOMEGUY93 ай бұрын

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

  • @mudabbirhossain6825
    @mudabbirhossain68253 ай бұрын

    Hi How are you?

  • @sabre_daniel834
    @sabre_daniel8343 ай бұрын

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

  • @user-lk6zh5jt9d
    @user-lk6zh5jt9d3 ай бұрын

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

  • @shannonsisk
    @shannonsisk3 ай бұрын

    Power service froze on me with double the amount suggested at 0F. Switched to Howes after seeing its anti gel properties are better

  • @frictionhitch
    @frictionhitch3 ай бұрын

    I have a ranch in New Mexico. I am converting one of my old trucks to syngas from a wood gasifier. A byproduct is biocrude. (something I want to maximize the production of in my design. It only makes the syngas cleaner). What am I likely to get from distillation? "Mr. Teslonian" videos got me curious. Waste not want not

  • @climatechangebrothers1426
    @climatechangebrothers14263 ай бұрын

    The best method I've seen yet on youtube that can be done inexpensively and is practical.

  • @ninjamel_official5730
    @ninjamel_official57304 ай бұрын

    Awesome thanks

  • @gerrieklijzing3198
    @gerrieklijzing31984 ай бұрын

    Only problem is crude oil doesnt exist

  • @jonathanseagraves8140
    @jonathanseagraves81404 ай бұрын

    John C. Reilly is starting to get really into method acting.

  • @OtterSwims
    @OtterSwims4 ай бұрын

    I've always wondered what this process looked like and now i know, thanks a lot for sharing it with us! I am curious however what the later stages of crude oil distillation looks like. For example the thicker, more plastic like compounds or the very thick and tar like stages of oil

  • @rodrich870
    @rodrich8704 ай бұрын

    AC system Low side too low & High side normal . Can someone help me??