Automotive Air Conditioning Information Forum (Archives)

fjasonf on Mon April 11, 2011 8:41 PM

Year: 2005
Make: Dodge
Model: Grand Caravan
Engine Size: 3.3L
Refrigerant Type: R134a
Ambient Temp: 80
Pressure Low: 40 psi
Pressure High: 80psi
Country of Origin: United States

Hey Guys, I'm needing some help on my wife's van. The compressor locked up last summer and I got one off another van. It never really did all that well then it locked up. It was the middle of the summer so I didn't take the time to learn all I need to do in order to get it right. I've been reading this forum and thought I would give it another shot. Here is what I've done so far...new compressor, new HXV for front and rear, new filter/dryer, new suction line ( had a muffler so I got a new one), new condenser, flushed out the front and rear evaporators and lines the best I could, add an Airsept filter on the suction line where it mounts on the compressor. According to the auto parts store, and what I could fine on the internet, I needed 10oz of PAG 46 and 43oz R134a. The new compressor I got said it had 1.5oz of ice32 already in it. I had a hard time trying to find out if the 1.5oz of ice32 was included in the 10oz. of oil or not but decided not to include it. All the oil I could add to the compressor on the suction side was about 5oz. I put about 1oz. in the filter dryer (don't know if I should of done that or not). After I bolted everything together I turned the compressor to get the oil in the lines then unbolted the suction line and tried to add the other 4oz of oil. after evacuating and adding r134a I'm getting 40 psi on the low side and 80 psi on the high side at 80deg. amb. temp. and 69 degs. on the center air vent idling at 750 rpm. It takes it a little while to get down to 69deg. I've noticed when I take the high side gauge hose off which is on top of the filter/dryer I have some oil come out. I don't know if that is normal or not. Sorry to be long winded I'm just trying to give as much info as possible. If anybody can tell me what I might have done wrong or why the high side is low ( at least I think it is) it would be much appreciated.

Jason

fjasonf on Sun April 24, 2011 2:51 PM

Never mind... I got it