I Need Help With My A/C

[L_U_D_I_AAccord]

OK
Last year I recharged the A/C and it worked great
Just today I was recharging it again, it took one 12oz bottle, when I tried to put a second bottle in the system is backfiring air out, so I couldn't get anything inside from the second bottle? The clutch is kicking on but no cold air?
Any ideas?
Thanks

[illestatus]

i took my car to a friends shop, where he tested the lines to see if they had any leaks, i replaced the rubber gaskets myself and once i was done, he just connected it to a machine and just charged me for a bottle and a half of freon(50bucks)

[James Matteu]

OK
The clutch is kicking on but no cold air?
Any ideas?
Thanks

Expansion Valve is clogged. Adding dyes can often destroy stuff like that after they have saturated the Dryer. I suggest have the system performance checked first, you need to know how much pressure the A/C Compressor is generating. Knowing the clutch kicks on only tells you the Low/High Pressure Switch is working and that you are staying within the spec range for refrigerant pressure. If it is a flow problem, then replace the Dryer and Expansion Valve together, then recharge the system and retest.

[L_U_D_I_AAccord]

Expansion Valve is clogged. Adding dyes can often destroy stuff like that after they have saturated the Dryer. I suggest have the system performance checked first, you need to know how much pressure the A/C Compressor is generating. Knowing the clutch kicks on only tells you the Low/High Pressure Switch is working and that you are staying within the spec range for refrigerant pressure. If it is a flow problem, then replace the Dryer and Expansion Valve together, then recharge the system and retest.

well haven't put any dyes in the system, but I will probably neet to replace one of the two things you mention.
Thanks!

[bcjammerx]

contrary to popular belief...it is NOT normal for your a/c to require recharges. One at like 10 years old maybe...but even that means you have a leak.

And >1 charge in 10 years means you really have a leak...>1 charge in under 2 years...you have some work to do.

Find your leak(s) and fix 'em. I recommend overhauling the system since you keep leaking so much...new orings all around really is all you'll need...in addition to a new drier of course and the r134 retro...unless you can find a shop willing to recharge with r-12 that is. You'll always have to replace the dryer when opening the system up.

...then try to solve the problem. Otherwise you'll be fighting a lost battle.

[James Matteu]

The Expansion Valve is a bottle neck of sorts, the firt place a clog would form but by no means the only place. Do the performance test, get those pressure readings.

[92BLACKEX]

I would go with R134 conversion. Make sure you get one with a gauge to because you don't need much inside there. If you over fill it then the lines are to full to cause the reaction to make the lines cold. To little then not enough to make it cold enough, that's why you need to gauge to get the right amount so that it all works. Drive it around to for a little while after you fill it up to get some air moving through the condenser and feel how cold the lines (cold line) are and inside the car.

[luckyflip]

sorry for bringing up an old thread.but i found this leak on the pressure switch.(freon bubbling out of the electrical connection)would just replacing it fix my problem?as soon as i fix the leak im going to replace the dryer,vaccume ect.

[bcjammerx]

sorry for bringing up an old thread.but i found this leak on the pressure switch.(freon bubbling out of the electrical connection)would just replacing it fix my problem?as soon as i fix the leak im going to replace the dryer,vaccume ect.

possibly just needs an o-ring/seal. Not sure if you can just replace the seal around it or if you have to get a new switch never taken one off.

inspect all other joints for wetness...which is leaking freon...get all orings needed

DO NOT just unscrew it...it'll blow freon all over you.

you will NEED to take your car to a shop, have them remove all the freon, then remove that part...if you do it quickly you won't need a new receiver/drier...but might.

You'll need a shop to do this;
1. so you don't blow freon into the atmosphere
2. when they pull the freon out (r-12) they can just charge it right back with r-12
3. you will need to pull a vacuum QUICKLY and after fixing the orings...
4. pull a vacuum again QUICKLY

all that to keep moisture out and keep from HAVING to replace the drier. good luck!

[luckyflip]

alright thanks for the info. will replacing the drying increase the ac performance? i want my ac in tip top shape since my wife drives it around also.
i didnt see any other leaks.i used the freon with the uv in it and bought some glasses.