ok so my trucks air conditioning works but doesnt blow cold air
so it needs recharged but its a 94 and they dont have any r12 around anymore thanks to people complaining about epa stuff
anyway can i use the new stuff to recharge it and will it be fine or do i have to convert it over to use the new stuff
anyway i have heard that you can use new in old and it will be fine
ive also heard that you have to replace stuff
so anyone do a recent recharge of there ac yet on a truck as old as mine
if so let me know
and also im not sure of how to recharge the ac i know you have to use a vacum pressure system ot get out the moisture but what else do i need to do
thanks in advance

 

Honestly, I don't know a darn thing about retro fitting the A/C for R134a, but I know you'll have to swap the R12 fittings over to R134a quick connect ones at least.

Maybe try this out: How to Retrofit Air Conditioning in Cars to New Refrigerant - wikiHow

I'd suggest when you're charging 'er up again, make sure to use manifold gauges to fill by pressure. Don't just fill up based on vent temperature. As for the oil, if you just replace the receiver dryer, don't go crazy with refrigerant oil. Overall, the guide looks pretty solid, but if you really want it done right, take it to a licensed A/C specialist and they'll know exactly what to do. Make sure to vacuum the system for 30 minutes at least.

Good luck

 

thanks null head for the help
in all honesty i probably wont be doing the recharge myself as you said you gotta change fittings around
so i will be calling my local shops and find out which ones are licsenced to do it
ill keep you posted
and as for the dryer and what not i havent doen a darn thing to it i baught it 4 weeks ago and i just know realized it wasnt blowing cold air just air not hot and not cold eather
and i may wait for my dad to get back from cali as he was an ac repair man for 20 years fro houses and he has all the tools to do it plus he has done my grandpas ac in his cadilac

 

A poor choice of words on my part, really. I meant to say "certified" repair man. There are state and ASE cert for A/C repair. Being "licensed" in A/C is only so you can buy like 30lb cans of refrigerant .. so you might not get too far asking for "licensed" A/C repair techs

Sounds like your dad would be the guy to talk to! I say replace the dryer because there's a desiccant bag inside there which absorbs moisture when the system is sealed up ... once you expose the inside of the system to air, and not vacuum it down first, it's highly suggested to replace it because once that desiccant bag gets saturated, it's useless and your A/C wont run right.

Cheers

 

i will defenantly do that would an auto parts store sell those or are they special order from a dealership as i hate dealing with them casue there over priced and they look at ya like your stupid and try to convince ya to have them do it but i refuse to use them at all unless its on my 05 crown vic as that is way to new for me to work on i only do stuff i can do without there special little tools they got as im gonna have to get my trans flushed soon and for that i have to drop the pan and change the filter and what nor dont have the thing they use to flush it with

 

Beats me if autoparts store has it ... I'd just go in and ask 'em. I just ran a search under my 89 truck and autozone didn't show up with much ... Seems like Autozone loves to sell A/C stuff cause nobody knows anything about it. Just go in and ask what they offer for retrofitting the A/C.

 

lol yeah im having the same problem im searching every where for that part if i find one ill let ya know where i did

 

hah my truck didn't come with factory A/C ... thanks though. I was searching on your behalf

 

well i didnt know ill keep up my looking maybe ill find it by accident or something when i am not lookin i do that alot i am goin to a junk yard this week maybe ill just pull one from there

 

well i did find one oreillys auto parts store has this part
Murray - A/C Accumulator

for like 25 bucks
thats all i found