ok i added 13 oz's of r134a to my truck the system sucked it in real quick like less than 2 minutes. i had the idle up to about 1100 and ac on full blast do i need to add more is the question. i hear the system wont let you add more freon than it needs is this correct. also there was virtually no water on the ground after i ran it for about 20 minutes. the air blows pretty cold but not really cold!

my cooler is clean as well so i think according to what i read i just need to add more

 

I hope you used R134A instead of freon...A few questions:

If you added refrigerant, then some must have leaked out before...Did you check and repair all leaks?...

If the system was open for some time, did you replace the drier?...

What were the pressures before and after your repair?...

Did you flush the system before recharge?......Ben

 

The system will definitely take in much more than it requires, which can cause pressures to reach unsafe levels under certain conditions. I don't recommend adding refrigerant without monitoring pressures.

 

gotcha yeah it was 134a sorry for the misunderstanding, yes i realize you need to monitor the pressure but why would it suck down the r134 so quick and why doesnt the condensor condensate? these are tell tale signs of being low correct! i might just add a few valves into the coolant lines to bypass the heater core!

 

What is the low side pressure?

 

Mine works best at around 30-35 lbs. yours may vary .that is getting close to overcharge but that seems to work for mine.

 

I recharged mine to approx. 32lbs.

 

ok its lower than that like 25lbs

 

The system will definitely take more than it can handle. Trust me, I know from experience. Mine blew no cooler than 60* for a while so I thought, well, I'll just add some 134. In no time flat it was gone. Still blowing mediocre so I added some more and all of a sudden I heard a sound from the back of the compressor like it had diarreah. Well, long story short, it built way too much head pressure and terminated the blow off valve on the tail of the compressor. No luck whatsoever finding just the valve, so I headed down to O'Reillys and handed those fellas 249 smackers for a new compressor and cold line. Found the dryer for about 30 bucks just up the road. Put the parts on and had a friend pull a vacuum on it and charge it and from that point on it's beed on the verge of spittin' snowballs .

 

"I hope you used R134A instead of freon" R134A is freon. There are different types of freon. This is just one type.

 

The condenser may not have water condense on the outside if the air is not humid enough, the dew point of the air has to be above the coil temperature.

 

I beg to differ...Freon is the registered tademark of Dupont for some of the CFC's and HCFC's it has marketed in the past...For its R134a, Dupont uses the tradename, Suva...Anything marketed as Freon was manufactured by Dupont, but not all refrigerants are Freon...

http://www2.dupont.com/Refrigerants/...cts/index.html

http://en.wikipedia.org/wiki/Chlorofluorocarbon

http://inventors.about.com/library/i...rs/blfreon.htm

Hope this clears up any confusion......Ben