Quote:
Originally Posted by leathermang
The shops do not do it because they can get by without it... not because it would not be the better procedure.
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I am sure using N2 and R22 is a best way of performing leak test in an IDEAL world. There is always an ideal way and a down-to-earth shady mechanic way of doing things. This is a DIY forum where fund and resources is limited. A practical mechanic like me will improvise, make do, substitute, to achieve the same result. The end result will the the same IMHO. The A/C system is not the be all and end all of a car, there are other important components which makes up the car. They can fail at any time without notice on an old car. So move on.