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Car Forum / Dodge / Dodge Cars / September 200691 dodge Spirit AC problem
Hello All, I just bought a 91 P. Acclaim (Dodge spirit) with 2.5 L engine. I know the AC compressor was seized up. I changed the compressor. and put in 3x12 oz 134a gas. Now, the compressor works however, I don't get cold air in the car. My observation is that AC gas does not circulate. After the gas becomes liquid, something keeps the liquid from reaching evaporator. My test: after I run AC for 5 minutes (no problem on clutch engaging), I stop the car and loosen the low pressure side adaptor bolts on compressor. Nothing leaks out. I put it back, and then loosen high pressure side adaptor compressor. As I expect, the gas starts to leak out from the adaptor. I'm sure I don't leak gas. I know some older systems use expansion valve. Where is it on this car, and is there any other place where might be clogged. TIA, Ulas. In article <1157916303.945900.11280@m73g2000cwd.googlegroups.com>, > Hello All, > [quoted text clipped - 16 lines] > > TIA, Ulas. Did you flush the system? Did you add oil? Did you pull a deep vacuum to 500 microns? Where do you suppose the trash from the seized compressor went? The TXV is at the inlet to the evaporator. I did not flust the system. I donto know how. I jsut take the compressor out and put another one back.. Change the low side adaptor to be able to use 134a and that;s it. I put very little oil on the high side before charging and then use 134a with oil addictive. I did not want to put too much oil since I know it is bad for compressors by experience. I believe the compressor is still ok. I didnot pump it to a specific vacuum. I donot have vacuum. Maybe next time, I can put one can of freeon in and then let it go, that way Imight get rid ofmost ofthe air also. I did not thought about the broken pieces of the old compressor. I believe, there is a filter like stuff between compressor and condensor. I will take it out and try to clean it by back pressurizing. I hope that cylinder like thing is a filter. Is the expansion valve sitting on the firewall in the engine compartment? I see a black box where the hoses are attached? Can i take it out or is it welded part of a evaporator. Thanks for the input. > Did you flush the system? > [quoted text clipped - 5 lines] > > The TXV is at the inlet to the evaporator. In article <1157948666.907852.214530@b28g2000cwb.googlegroups.com>, > I did not flust the system. I donto know how. I jsut take the > compressor out and put another one back.. Change the low side adaptor > to be able to use 134a and that;s it. You -do- know that the inside of that system HAS to be cleaner than a hospital operating room, don't you? > I put very little oil on the high side before charging and then use > 134a with oil addictive. I did not want to put too much oil since I > know it is bad for compressors by experience. I believe the compressor > is still ok. > I didnot pump it to a specific vacuum. I donot have vacuum. Maybe next > time, I can put one can of freeon in and then let it go, that way > Imight get rid ofmost ofthe air also. How could you possibly hope to get the moisture (water) out of the system? A deep vacuum isn't one of those "nice to do" things, it's mandatory if you don't want to have problems, big problems. Water can and will freeze in the TXV, a frozen TXV will starve the compressor for oil. > I did not thought about the broken pieces of the old compressor. I > believe, there is a filter like stuff between compressor and condensor. Will stop a piston, won't stop muck. > I will take it out and try to clean it by back pressurizing. I hope > that cylinder like thing is a filter. Needs to be replaced -after- you flush the system and add the proper amount of oil divided amongst the different components. > Is the expansion valve sitting on the firewall in the engine > compartment? I see a black box where the hoses are attached? Can i take > it out or is it welded part of a evaporator. Yes, that's probably it. Chrysler never welded the TXV to the evaporator. > Thanks for the input. Until you make up your mind that you're going to do things right, you're wasting your time. Was the compressor a junkyard special ??? 91 was still probably R12, At least my 92 Dodge van was. their is more to the conversion than just adding R134 Need to do a complete system flush, replace the dryer, refill with the correct amount & type of oil, evacuate the system & recharge. The amount of refridgerant added to the system is critical for best operation |
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