R134A AC System Pressure - How to Spot the Issues!

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Skip Intro 0:22
Tools Needed 1:08

UNDER THE HOOD
1) Connect the Gages 1:30
2) Vacuum the Hoses 1:45
3) Set the Right Refrigerant Level Charge 1:53
5) Measure Operational Pressure 2:30
6) Determine Possible Failures 2:56
7) Examples of Issue - LP & HP are Too High 3:34

Learn how to spot the issues in any AC climate system using r134A, just by reading the pressures of the system.

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I hope you enjoyed my video on temperature diagnostics in the AC System. Please don't forget to like and subscribe.

Thanks for watching and see you next time!

[Exist]

The production quality is so overwhelmingly good, it's hard to focus on what he's actually trying to teach us.

[islandborn]

There’s no way this guy isn’t one of the top tech tubers
Great video bro

[rotfan]

Thanks for making this video, I wasn’t sure if my low side pressure was a little bit too low but with your help I was able to figure things out. Thanks

[romcon]

oh my goodness. the best video I have watched about car AC. gotta love the acoustic/electric music background too. thanks mate.

[foxgiven]

I was wondering where I have seen you before and finally came to me...the videos were very different 9 years ago haha

[KillerkoUK]

You could have go through all the other possible issues, but I've found what I was looking for in that PDF, so thanks!

[albertfuentes]

Thought I was watching TV 😂😂. Good information thanks👍

[jafinch]

Thanks for the free guide and chart poster. Great detail!

[notneb]

Just replaced the compressor & expansion valve on my f150. Put 3 oz of oil & 24 oz of freon per the tag under the hood. The high side goes to 300, the fan comes on the pressure drops fast to 200 then starts climbing back to 300 cycles over and over.. The ambient temperature 78 the vent temperature is 39. Would my dryer in the condenser be bad or the condenser messed up? What say you?

[melaniememe]

Nice very informative Great presentation Good job very informative I like the information. Very helpful thank you for taking the time to create this content

[mohammadsaadeh]

Hi, Thanks for your perfect explanation
Can you please advise why When I switch on AC the compressor will click three to four times before back to normal

[itsme-qijq]

You never mentioned superheat or subcooling in relation to the pressure chart to diagnose correct system requirements....

[fernandoherrera]

Hi Robin, how about when your low pressure is functioning fine but your high pressure stays with the ambient temperature when your compressor engages ?

[MM]

what to do with overcharged system? tried to drop the pressure but with gas its spitting oil

[TheCoatneyadkins]

That poster from the website is pretty handy, thank you.

[RR]

Awesome, awesome video! Very informative! Thank you for sharing! 👍🙏😊

[faizmirza]

Why the a c temp. Is not maintained, suction pressure is 40psi and discharge pressure is 130psi, amps is 16, gas is R134A. What is the problem, can u suggest ????

[issamadam]

Great informations.Can talk about pressure gauge readings of variable and fixed stroke compressor ?

[tomeejr]

Good vids. I tried to find that poster on the Nissens website, but was unable to. Think it's still listed there somewhere ? Thanks.

[joefoisy]

What about if pressure seem to indicate normal operation yet output air temp is not ideal and low side lines not very cold