How to Replace, Recharge or Refill Your Air Conditioning System R134a

[cornbread0715]

What happens if I hold the can upside down and got liquid in the low pressure side it was my first time so i did not know not to do that......How can i get the liquid removed or do i just turn on the AC and let it run out itself ?

[overboost786]

the video was good, but some of the information was wrong. first you said you prefer to service the vehicle ( Initially) with the vehicle off so you can hear any leaks. good, but you can only service the vehicle when it is off for the Initial service of fridgerant. the compressor will not run with no freon. second you said the ideal pressure is 30 on the low side and 150 on the high, false because pressure is effected by temperature, you have to follow the pressure/temp chart to service correct

[mrjoeyman]

One of the best videos I have seen here on this subject. Thanks.

[profleetautorepair]

@mrjoeyman No problem, I will keep them coming as I find good subjects worth recording!

[jessellanos787]

@profleetautorepair i want to top up the gas in my car it has gas but need alittle so can i use one of these diy kits

[joey72ify]

Very good!! nice guy. thanks.

[RowAshore]

Just put in a can of R134 in a 2004 Malibu. Still no cooling! Can hear compressor kick on when press AC button. Thoughts? Great video, very informative, thanks!

[profleetautorepair]

@RowAshore Couple of possibilities as stated in video, if you did not vacuum air is in system equals no cold air or you did not put enough freon in the system. If compressor turns on means you have enough pressure to get some cool air and that the system is electronically and I would say for the most part mechanically capable of producing cold air.

[maxhauler]

Thanks for the great tutorial video!

[spelunkerd]

That's a good review. People don't realize that this is a hard area to work on, from the perspective of a backyard mechanic. I did think you had to draw down the system for longer than 15 min to clear all impurities. How do you know how much PEG oil to add to a vacuumed system?

[profleetautorepair]

When you vacuum down system with a vacuum pump you will remove some of the oil with it. We are able to measure amount removed and put it back in. Generally we will add 1 ounce of Ester oil(synthetic oil compatible with all a/c systems) to any vehicle older than 10 years or if we see signs of oil seepage outside of system. We also add a dye tracer in the 1 oz of oil to locate future freon leaks.

[frankie2234]

Asked question too soon. Look forward to coming for service all the way from Detroit area. Thanks Sam.

[frankie2234]

do you vacuum the system out first?

[profleetautorepair]

Always! I will never just add a random amount to system, to risky. This allows you to fill with the exact amount needed and will eliminate freon from being cause of cooling concerns if afterwards vehicle does not cool correctly.