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You are probably the only one on CZcams that described the a/c pressure switches. And you make it so simple. Thank you so much. Awesome teacher. You just answered so many questions that I had.
Awesome video explaining how system and switches work. You nailed it. Important takeaway - if your relay is clicking, all pressure switches and VCM are working correctly. This is time saver.
This has to be one of the very best technicians who posts videos like this on You Tube!!! I have seen several videos He has posted and His methods are really good...
One of the best AC trouble shooter videos I've ever seen. Exactly what I needed to continue trouble shooting my 1977 F-350 Diesel AC problem. Thanks, look forward to other videos.
Thank you for an excellent video! You gave me courage to tackle my A/C issue. I found that when briefly bypassing the low pressure switch, the compressor did turn, indicating a need for a charge and probably a leak fix. Five stars from me today!!! :)
This helped me figure out a problem in my wiring that I'd be struggling with for a few days. The explanation of the wiring diagram is what did it. Thanks for the thoroughness!
This is the best video on CZcams explaining the 2 switches. I'm an electrician so this makes perfect sense and for anyone that doesn't have a electrical background just follow this man's instructions step by step and you will be able to troubleshoot your issue. If you cant read schematics dont sweat it and just ignore that part of the vid. Great job to the man that created this vid.
This was the most informative information I have received, and I have gone through hundreds of them here on youtube, you predicated what the other gentleman spoke, you both are on the same page. I did what you and he said and it works, 1988 Lincoln Continental MK VII LSC. Thank you a thousand times.
Smart men! Thank you. Is was very useful for me. Videos like this should be underlined as very well designed and performed educational videos. Thank you again for your time and efforts!
This is exactly the sort of video that I crave (most of yours are). Please keep the in-depth videos coming. I always take something from your videos that help me in my job (if!). A very sincere thanks to you sir!
I'm working on making a Frankenstein ac system work, and I've gotta say that this video really cleared things up for me!! Thank you very much! Keep up the good work!
how come all the mechanics that i know, they pretend to know and they do not know shit, this guy in the video is the one you want to know for all your mechanical problems, He is the MAN, and thank you very much Mr.
I used to wire industrial control panels. Your explanation regarding normally closed/normally open pressure switches is very clear. In our schematics we sometimes show the contacts at rest. What we do is indicate on the schematic that the normally closed switch is closed when pressure is above ### and the normally closed is open above ### pressure.
Thanks for the video D !! It helped me in the field i followed all your training and checked compressor wiring harness all the way back to the PDC everything good .. I found low pressure switch stuck open circuit .. After checking the wiring diagram first i bridged the the plug and the AC system started to work .. The vehicle was a 2006 Jeep Liberty 3.7 V6
Nice explanation and for using the description of “Interrupter” as well. Having the light and DMM are great visuals for those who learn better this way. I will finish the last few minutes but the P/S switch also effects the circuit. Depending on the manufacture, model and year, but the A/C compressor is interrupted and shut off at high speeds. This can be done using an external switch on the gas pedal, speed sensor at the compressor clutch with steel / iron reluctor and Hall-Effect switch or PM generator that produces an A/C voltage signal, buffered by diodes & electronics shutting the compressor off. Speed or the drivers request for speed reduces damage to the compressor during high RPM’s and helps with performance or fuel economy both during certain conditions. It is nice to see a professional tutorial on the subject. I added info the would make the entire subject harder and perhaps loose some viewers. ASE Master Tech since 1978 - Retired
Man your video was so informative , it helped me well understand the a/c circuitry , next week id check out my toyota hilux a/c system for ps malfunction and share the results , although the documentary says its a double pressure switch i think it works the same way as you explaind but no idea why theyve called it a double switch!
You video worked. My compressor was clicking on and off fast. Changed the low pressure switch and it just unscrews without loosing the freon. Then it let me add freon. I did jump the switch for awhile to get it to suck up the freon. Thankd
I have a 2006 GMC sierra pick up truck. The ac quit blowing cold air and I notice the compressor clutch was not pulling in. I checked the fuses in the inside compartment and they were good. I checked the fuses I pulled the relay and checked the coil with an ohm meter and it appeared to be good. 85 Ohms across the coil just like several others that were working. I jumped the contacts on the relay socket and the compressor relay pulled in and the ac blew cold air. So because the fuse was blown and it worked jumped out I though maybe the relay contacts were bad for some reason. I replaced it and had no change. All this time I was getting a 12 volt signal to the relay coil socket. So per your video I set out to check the pressure switches. The low one is a 2 wire and the high one is a 3 wire. I unplugged the 2 wire pressure switch and metered the contacts and had continuity. I plugged the low pressure switch cable back in and all of the sudden the compressor clutch pulled in. The air now seems to be working correctly and blowing cold air. Do I have a problem coming that I should look into?
good lesson well spoken and to the point. I get it. my clutch isnt pulling in and now I can test my low and high pressure sensors. thought I was stumped when my fuse proved good and relay was working.thanks
REAL COOL LIKE THE WAY U TEACH THINGS I WISHED I COULD HAVE LEARNED IT MY SELF.MY DAD FIXED 18 TEEN WHEELER'S AND THERE REFER'S BUT HE PASSED 2 YEARS AGO AND I NEVER MEET HIM BUT I INHERITED HIS SHOP AND TOOLS I'M WATCHING UR VIDEO TO LEARN THE BASIC PART SORRY I CAN'T SPELL THAT GOOD IF U CAN'T READ WELL
gracias muchas gracias esta class me alludo a comprender y lo iso muy bien entendible facil para probar aunque no able Español se entiende con la ilustracion. thanks a lot this class help me I'm learning more thanks again.
You are probably the only one on CZcams that described the a/c pressure switches. And you make it so simple. Thank you so much. Awesome teacher. You just answered so many questions that I had.
old school; from the basic principles to the schematics. Simply one of the best I've seen around.
Awesome video explaining how system and switches work. You nailed it. Important takeaway - if your relay is clicking, all pressure switches and VCM are working correctly. This is time saver.
This has to be one of the very best technicians who posts videos like this on You Tube!!! I have seen several videos He has posted and His methods are really good...
I've been studying exercises for jumping higher and found a fantastic resource at Enyeto Jump Plan (check it out on google)
One of the best AC trouble shooter videos I've ever seen. Exactly what I needed to continue trouble shooting my 1977 F-350 Diesel AC problem. Thanks, look forward to other videos.
I just want to thank you for all the videos you do; they really help a lot of people.
One of the best ac videos on here. Thank you for explaining lingo along with terms. AWESOME!!! Thanks again!
Well done! Bringing the basics to the layman! Great video👍
Thank you for an excellent video! You gave me courage to tackle my A/C issue. I found that when briefly bypassing the low pressure switch, the compressor did turn, indicating a need for a charge and probably a leak fix. Five stars from me today!!! :)
Well done HVAC 101 training, back to basics. Thank you for sharing.
Very good informative video I'm glad I watched the whole thing.
This helped me figure out a problem in my wiring that I'd be struggling with for a few days. The explanation of the wiring diagram is what did it. Thanks for the thoroughness!
One word AWESOME!!! THANKS.
Thanks for making this! I really enjoy these longer in depth vids
This is the best video on CZcams explaining the 2 switches. I'm an electrician so this makes perfect sense and for anyone that doesn't have a electrical background just follow this man's instructions step by step and you will be able to troubleshoot your issue. If you cant read schematics dont sweat it and just ignore that part of the vid. Great job to the man that created this vid.
Thanks, I appreciate you taking the time to comment
@@realfixesrealfast My honor. I was well deserved. Thank you for doing the video.
I like your videos, you take the time to track things down logically.
This was the most informative information I have received, and I have gone through hundreds of them here on youtube, you predicated what the other gentleman spoke, you both are on the same page. I did what you and he said and it works, 1988 Lincoln Continental MK VII LSC. Thank you a thousand times.
Smart men! Thank you. Is was very useful for me. Videos like this should be underlined as very well designed and performed educational videos. Thank you again for your time and efforts!
This is exactly the sort of video that I crave (most of yours are). Please keep the in-depth videos coming. I always take something from your videos that help me in my job (if!). A very sincere thanks to you sir!
I'm working on making a Frankenstein ac system work, and I've gotta say that this video really cleared things up for me!! Thank you very much! Keep up the good work!
Thank you so much for this wonderful informative video, perhaps tomorrow I can diagnose my Civic.
Awesome video...Thank You!
Thanks so much for good , clear ,and complete instructions. Just doesn't get any better than this ! ----Ernest E. Johnson
I am a former ASE certified mechanic, and, in my modest opinion, this guy could very well charge for this teaching on the matters! Very good!
Thanks, I appreciate you taking the time to comment
how come all the mechanics that i know, they pretend to know and they do not know shit, this guy in the video is the one you want to know for all your mechanical problems, He is the MAN, and thank you very much Mr.
I used to wire industrial control panels. Your explanation regarding normally closed/normally open pressure switches is very clear. In our schematics we sometimes show the contacts at rest. What we do is indicate on the schematic that the normally closed switch is closed when pressure is above ### and the normally closed is open above ### pressure.
Thanks for the video D !! It helped me in the field i followed all your training and checked compressor wiring harness all the way back to the PDC everything good .. I found low pressure switch stuck open circuit .. After checking the wiring diagram first i bridged the the plug and the AC system started to work .. The vehicle was a 2006 Jeep Liberty 3.7 V6
This is the best video of ever seen on the air conditions it really helped me out a lot keep up the good work man
THANK YOU FROM VENEZUELA!
the best video on this subject ive ever seen..thank you!!!
Mister you are a MAESTRO.... excellent video thank you
Love your videos. Thanks!!
Nice explanation and for using the description of “Interrupter” as well. Having the light and DMM are great visuals for those who learn better this way. I will finish the last few minutes but the P/S switch also effects the circuit. Depending on the manufacture, model and year, but the A/C compressor is interrupted and shut off at high speeds. This can be done using an external switch on the gas pedal, speed sensor at the compressor clutch with steel / iron reluctor and Hall-Effect switch or PM generator that produces an A/C voltage signal, buffered by diodes & electronics shutting the compressor off. Speed or the drivers request for speed reduces damage to the compressor during high RPM’s and helps with performance or fuel economy both during certain conditions.
It is nice to see a professional tutorial on the subject. I added info the would make the entire subject harder and perhaps loose some viewers.
ASE Master Tech since 1978 - Retired
Thanks for your input Dean, It always helps to add more information
Can't make it any more clear than you have explained. Great video.
Great video. Very helpful. Thanks so much!
Need more teachers like him, awesome job sir
awesome.... you rock.. keep up the great videos
wow ...you're great men. it help me to understand how it thank you.
really good video, couldn't be more clear. thanks for sharing knowledge.
Great video! Great instructor!
This was actually a great A/C Switch Video! 2 thunbs Up!!!
Superb way of explaining electric circuit's and the testing of,, thank you so much.
Very informative..Your a very good diagnostic man
Man your video was so informative , it helped me well understand the a/c circuitry , next week id check out my toyota hilux a/c system for ps malfunction and share the results , although the documentary says its a double pressure switch i think it works the same way as you explaind but no idea why theyve called it a double switch!
This helped a lot. I just purchased an a/c set up for my truck at a salvage yard but the wiring was all disconected.
Thanks for your valuable time!!!!!!
Thank you sir, I have learned something new.
Great video!
YOU THE BEST MECHANIC I EVER KNOW THATS RIGHT YOU EXPLAIN THIS REAL GOODDDDDDDDDDDDDDDD
excellent lessons , thanks a lot for your time!*!*!
great video, great info
This is such a good example and teach video! Thank you!
Very well done, very informative.
You video worked. My compressor was clicking on and off fast. Changed the low pressure switch and it just unscrews without loosing the freon. Then it let me add freon. I did jump the switch for awhile to get it to suck up the freon. Thankd
Love these videos. i learn so much. idk why but i like electrical work.
Great video. thanks for the info
Great job! Thank you very much.
🙂 Great video, very well explained and easy to understand. It helped me. Thanks 👍
Very instructive. If ever you have time, would it be possible to explain a 4 pin high pressure switch? How to test it.Thank you
you're spot on! I like your videos! Doug in Orlando Fl. Walt Disney Fleet mechanic.
Thank you sir !! nice tutorial very straight forward and detailed. ..
Very informative video. Thank you. :)💫👍
Very informative. Invaluable information...
Thank You , well appreciated ..
I have a 2006 GMC sierra pick up truck. The ac quit blowing cold air and I notice the compressor clutch was not pulling in.
I checked the fuses in the inside compartment and they were good. I checked the fuses I pulled the relay and checked the coil with an ohm meter and it appeared to be good. 85 Ohms across the coil just like several others that were working. I jumped the contacts on the relay socket and the compressor relay pulled in and the ac blew cold air. So because the fuse was blown and it worked jumped out I though maybe the relay contacts were bad for some reason. I replaced it and had no change.
All this time I was getting a 12 volt signal to the relay coil socket. So per your video I set out to check the pressure switches. The low one is a 2 wire and the high one is a 3 wire. I unplugged the 2 wire pressure switch and metered the contacts and had continuity. I plugged the low pressure switch cable back in and all of the sudden the compressor clutch pulled in. The air now seems to be working correctly and blowing cold air.
Do I have a problem coming that I should look into?
Very good video, thanks.
Thank you so very much. This help me a ton.
great info!
Super video - many thanks :-)
Thanks Brother and God Bless BKA Tony
Great diagnosis
realy it is fully educated post thanks lot for rich information you had posted
Great video
plain simple and great video, thank you Sir....
Smart and anderstandable explanation!
good lesson well spoken and to the point. I get it. my clutch isnt pulling in and now I can test my low and high pressure sensors. thought I was stumped when my fuse proved good and relay was working.thanks
Yes, he'll answer a specific problem for you on his website for $34.95!! Real nice guy!!
you are a maestro,nice video
Excellent video
Thank you well explained!
very well presented, thank you
Outstanding explanation.
Tank you... from Monterrey Mexico
nice,and easy to follow and understand. Thankx
Great Video sir!
REAL COOL LIKE THE WAY U TEACH THINGS I WISHED I COULD HAVE LEARNED IT MY SELF.MY DAD FIXED 18 TEEN WHEELER'S AND THERE REFER'S BUT HE PASSED 2 YEARS AGO AND I NEVER MEET HIM BUT I INHERITED HIS SHOP AND TOOLS I'M WATCHING UR VIDEO TO LEARN THE BASIC PART SORRY I CAN'T SPELL THAT GOOD IF U CAN'T READ WELL
As a fellow engineer, I really appreciate your simplistic message.
Thanks, always good to see someone recognizes the value
Great presentations! Very educational. Thank you for sharing your knowledge in a very practical manner.
Your welcome. Thanks for your comments
I have no power to low pressure switch
That's very helpful
Thank you
thank you for this class very helpful thanks again..
Thank you great video
very educative thank you.
Verry good presentation simple and to the point.
gracias muchas gracias esta class me alludo a comprender y lo iso muy bien entendible facil para probar aunque no able Español se entiende con la ilustracion. thanks a lot this class help me I'm learning more thanks again.
Thanks so much for does videos
great teacher.
excellent.. description
Wow! Amazing lesson. Thank you.
Thank you sir for all this information
Thank You!!!