Interior and Upholstery AC FLUSH

Potomus Pete

Gretchen Whitmer is eating at me
Mar 7, 2019
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Sarasota Florida
Is there a common chemical that I can clean out both condenser and evap. parts on my ac system. I want to go with a semi-complete kit and buy a 134 resto kit. It has everything but the mentioned parts. . Maybe start with Tolene or xylene. Then finish with the correct flush. I want to get it good with compressed air, but at $40 for a bottle I just want to buy one. I have a vacuum and gauges. Any ideas for the Potomus for a 134 resto. I will take some negativity if need be , but dont crush my dreams KIMG0335.JPG . This kit is from Original Air WILL IT WORK
 
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MustangIIMatt

I need something stupid to play with
Mod Dude
Mar 7, 2002
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View: https://www.amazon.com/FJC-2710-System-Flush-Kit/dp/B0002JMEQW


The first thing you'll need is something like that. Here's the great news: You don't have to buy one. Autozone and others have it in their loaner tools program. It's real simple to operate, it'll either have a fitting for your air hose from your compressor or a schrader valve. Fill it up with the appropriate solvent, either connect the hose, or air it up via the valve. After that it's simply a matter of holding the business end up to your various hoses and fittings and blowing the solvent through. Just don't flush the receiver/drier (in fact, REPLACE IT!) and make sure you pull the orifice tube prior to the flush (AND REPLACE IT TOO!!!).

Now, when it comes to which solvent to use, there are a lot of choices. I've personally used this one a lot: https://shop.advanceautoparts.com/p/ac-pro-certified-a-c-pro-flush-clean-solvent-based-1-quart-cqs-11/7060432-P?searchTerm=a/c flush and had good results every time. Make sure you get a name brand, either from a refrigerant manufacturer or an a/c parts manufacturer (such as this one from Four Seasons, which is a leading aftermarket A/C system supplier: View: https://www.amazon.com/Four-Seasons-69994-Super-Solvent/dp/B004AEQSE4/ref=sr_1_16?dchild=1&keywords=cqs-11+a%2Fc+flush&qid=1592698070&sr=8-16
), as there are a lot of no-name products out there on the internet, and only they know what they're putting in them.

If you don't have access to a compressor, a few of these cans is a good alternative: View: https://www.amazon.com/dp/B004BSHVUY/ref=dp_cerb_2
I've used them in a pinch, and they work well enough, just not quite as good as using a flush can with pour-in solvent.

Two important things to remember when you're done with flushing the condenser, evaporator, and hoses/lines:

1. Make sure and keep blowing air through the parts of the system well after the solvent and/or debris has stopped flowing to make sure there is no solvent or debris left behind.

2. Fill the system with the correct amount of A/C system oil when putting it all together. You will want to use ESTER oil, not pag or mineral on an older car that formerly had R12. The reasons for this are twofold; the ester oil is compatible with any remaining mineral oil left in the system, and ester oil doesn't chemically react to any R12 residue that might linger somewhere in there.
 
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Potomus Pete

Gretchen Whitmer is eating at me
Mar 7, 2019
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Sarasota Florida
Thanks , that information says it all. My only question for now is will it work in regards to leaving the old finned aluminum stuff in. Being a Florida car there is no corrosion and I will take the front one out to clean it.....If I take my time and do it right WILL IT WORK / Would you consider doing this to your car.
 

MustangIIMatt

I need something stupid to play with
Mod Dude
Mar 7, 2002
8,401
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Thanks , that information says it all. My only question for now is will it work in regards to leaving the old finned aluminum stuff in. Being a Florida car there is no corrosion and I will take the front one out to clean it.....If I take my time and do it right WILL IT WORK / Would you consider doing this to your car.
If it's all in good shape, and hasn't been open to the elements to collect dirt, sure.

View: https://www.amazon.com/Interdynamics-Certified-Universal-Fluid-Ounce/dp/B008QDXPFK/ref=pd_lpo_263_t_0/141-8225112-5386250?_encoding=UTF8&pd_rd_i=B008QDXPFK&pd_rd_r=3c37cb17-d07c-4678-988b-fd9ca1980848&pd_rd_w=lLhju&pd_rd_wg=eeDs5&pf_rd_p=7b36d496-f366-4631-94d3-61b87b52511b&pf_rd_r=JEA8F4GQBR6HGCPHY9H6&psc=1&refRID=JEA8F4GQBR6HGCPHY9H6
add that to your list, and pour the correct amount in with the oil when you're putting the system together, and you'll be able to check for leaks with a UV light.
 
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Potomus Pete

Gretchen Whitmer is eating at me
Mar 7, 2019
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Sarasota Florida
All this will be saved on here. Going to order this unit because its ninety degrees every day. Cant wait I was scared after watching several videos of dashboard removal. I could do it but my dash does not squeak , why start now. THANKS
 
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