R12 AC questions

K45

K45

Active Member
Joined
Feb 21, 2007
Location
Statesville
Lately the ac has not be getting as cool. I do not know if I have a leak or not but that is going to be the 1st step in getting it to work. Once this happens I need to figure out whats the best option on feeling it back up. I am about positive there is nothing wrong with the compressor.

I have been reading online about this stuff. I know R12 is obsolete expensive and hard to fine. I read about the conversions to R134A . I saw where the conversion cost anywhere from $30-$1000, and that it is a DIY project to it is a professional job only. I am just looking for the most cost efficient means of getting the ac right. I have also read a little about a R12A as an option.

So if there are any AC experts out there to help clear up this information, I would like your input thanks​
 
a/c

I am not an "expert" but I have done several vehicles (by choice of the owner) by just simply installing the conversion fittings and recharging (which includes pulling a vacuum) with R134A. I have not had a single issue by doing this; so it seems to be the cheapest way out. It is recommended to change all the orings, oil, etc.
I would ask myself; Is the vehicle worth spending alot of money on; or do you just want a/c?
my two cents
 
I have converted 3 vehicles with the DIY approach, and I have 2 waiting on me (my Dad's...)

I put the conversion fittings on, vacuum it down to boil all the moisture out, add 2 oz of pag oil, then recharge with 134A.

I also am no expert, but I have not had any trouble out of any I have converted. The vacuum step is important because moisture will cause long term issues. But, as ^^^^^ he said, what is long term? He hasn't had any troubles w/o vacuum.

Good luck.
 
I agree with them also. On a different thought, install a water valve on the heater line. I get them from Lowes in the plumbing section with the barbed ends cast into brass the ball valve and splice it in the line. Been doing this for years because the heater valves that comes factory let's a little hot water circulate even when off. Check your hose and see. Both my Suburbans are done this way and the 96 was cooled down 12 degrees at the AC vent! Valve and two clamps about $10.00, cooler air out the vents, Priceless!
 
Get freeze12 from the local parts store. I have used it in 3 trucks and it works great. Its a r12 subsitute and is the easiest way to go...
 
X2 on the freeze 12 we have been using it for years in our shop. much cheaper than converting it over and it takes a little less than the sticker calls for to get it full
 
whatever you decide to go with you need to change your compressor oil to the recomended oil for that type of refrigerant. if you dont eventually the compressor will shit the bed.
 
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