You can buy a kit and do it yourself. I had to last year because DH was gone AGAIN so he couldn't, and if I recall (that's not easy lately
) it wasn't that hard or expensive.
Go to the store and buy a can of refrigerant. Read the directions.
It's as simple as starting your car, turn AC on high, connect the hose to the AC line under the hood, depress the tab on the can to fill the refrigerant.
Costs anywhere from $10-20 for a can of refrigerant. Most also have a lubricant and can also seal minor leaks. I have always had old used cars and I charge them up every year, though why you need AC now is beyond me.
Get estimates if you're having it done at a garage. The Chrysler dealership where we bought the vehicle was charging literally hundreds over the Pontiac dealership that did the work (I think we paid less than $100, but cannot really remember now).
You can do it yourself (I just spoke to my son). He says go into Auto Zone (or like store) and buy a can of R134A if the vehicle is newer than 1990, or R12 before '89. He said this will be under $4 a can. He then said you'd need to buy a $15 tool (depending on which product you buy). From here, talk to the guy at the store because I don't know the specifics(I didn't ask my son the process, but he said anyone could do it). In this case, that would probably be, anyone but me!!!!
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My 1993 Lincoln had R-12. It was one of the last cars. Even was a sticker on the window advising to use R-12. I still have the car and had to have it retrofitted with R-134 as the dealer didn't have R-12 anymore and was cheaper. Mixing the two is not a no-no.
I don't know how they handle R-134 but with R-12 (and this is expensive) it has to be pumped out into a containment. Gone are the days of venting into the atmosphere. Also R-12 isn't made/sold anymore making it expensive.
A car shouldn't need additional refrigerant, it's not something that gets depleted from use; if you need to add refrigerant you have a leak somewhere.
Well they have a stop/fix leak kit out there for the ac I'll try that and see if that works.. if not off to the shop we go.
Well, my son knows a lot more than me, that's all I'm sayin. He's been going to school for it for the past 3 years, and he has more experience in doing it than most who are not professional mechanics (I think he did about 8 or 9 automobiles last summer alone - friends). He will attend the University of Northwestern Ohio in the fall, so he's not had his, "formal" training yet, but the school will qualify him to work on a Nascar pit crew if he's good enough.
EDIT: Oh, and he finds out tomorrow if he passed the testing to be qualified to do state inspections.