Trying to flush

MitchR on Sat July 16, 2011 12:05 PM

Year: 2000
Make: Chrysler
Model: Town&Country
Engine Size: 3.8
Refrigerant Type: 134
Ambient Temp: 90

After compressor went out I bought new compressor, condenser, txv, and dryer. I'm trying to flush the dam thing and can't get to the rear ac. It sure needs all lines flushed because unscrewing the connectors about midway underneath I noticed black oil dripping out and the suction side line seems to have a dry stickey black smear. I'm having a hard time getting to the rear txv and evaporator to flush. Mechanic replaced the compressor about 2 years ago and said he flushed it out but, I just don't beleive he did the rear lines. I'm trying to do it right so it wont have to be done again. I pulled the back panel off so I see the housing that has the fan and evap so just wondering if the txv is in that housing or unerneath car at the rear. It's giving me pure hell so is it worth messing with the rear or maybe get new lines and just have ac in the front. I certainly value your opinions.

HECAT on Sat July 16, 2011 2:11 PM

For rear air; you will need to remove the TXV at the rear evap, connect the lines at one end and flush them, flush the evap, dry everything real good and install a new TXV.

Or... The old TXV could be clearance drilled to become an open flowing flush fixture and reinstalled to flush the lines and evap as one. This larger circuit will need more liquid and drying time accordingly.

Trying to flush through the TXV kills (slows) solvent flow and prohibits proper drying.

HTH

-------------------------

HECAT: www.hecatinc.com You support the Forum when you consider www.ackits.com for your a/c parts.

FLUSHING TECHNICAL PAPER vs2.pdfÃÂ

MitchR on Sat July 16, 2011 3:42 PM

Thanks so much Hecat. The rear unit is so hard to get to, and I will try one more time, I might just scrap the rear unit. I will then have to get new lines for the front that don't have the split off to the rear. If I do that then the only thing that will need flushing is the front evap. I wonder would the condenser be a shade too big although it does have an auxillary condenser in front of the main so I would surely bypass that one. See any problem with that. Also is lacquer thinner just about as good a flush solution as the real thing? It is about half the cost. I hate to pour a lot of money in this old thing but wife just gotta have air. Thanks again.

TRB on Sun July 17, 2011 11:25 AM

There are many different products people will use to flush a system. At this time the only one ACKits.com supports and uses in their own shop. Are the products produced by Hecat.

-------------------------

When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

HECAT on Tue July 19, 2011 11:20 AM

Lacquer thinner is Toluene, Zylene, and other stuff not recommended to use as a flush because it can possibly damage system materials.

-------------------------