Year: 87
Make: Jeep
Model: Cherokee
Engine Size: 4.0L
Refrigerant Type: r134a
Country of Origin: United States
Hello, I have a Jeep Cherokee that I've just about completed an R134A conversion which included the following:
-AC Kits Parallel Flow Condensor
-Proper HNBR o-rings
-Proper oil
-Rebuilt compressor
-New accum/drier
-Flushed system with AC flushing solvent
My situation now is that for other reasons I have the dash diassembled and have access to the evaporator. It being the original, I figure if it is ideal to replace it, I should do it now.
My questions:
Is there an evaporator design meant for R134A much like the "Parallel Flow" condensor works better with R134A vs. R12?
What are the differences between part #s 27-33646, 54177MD, and 27-20285? Just pick the one that matches OEM or is one better for R134A?
Is there any problem using "high mileage" R134A? (contains sealers for older systems)
Thanks for any help
Would not hurt to change the evap since you'll be able to get at it, OEM design is fine..DO NOT USE anything but the proper oil, UV dye and "Virgin" R134a...Stay away from sealers or other "magic" in a can..I don't see the expansion valve on your list??
Article on sealers
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Chick
Email: Chick
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Freedoms just another word for nothing left to lose
Affter all you have spent, it would not make sense to stop and risk failure now..Do it right and you'll do it once...
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Chick
Email: Chick
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Freedoms just another word for nothing left to lose
Yea, I'm convinced not to use the high mileage stuff, how about the R134A that already contains the UV Dye? Is that the same as using dye and plain r134a separately? Just reading in to what Chick said...
Quote134a with just dye is OK to use.
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Use just one can of 134a + dye. Put it in first, then finish charging with plain 134a. Or buy dye separately. Either way you want to have a little UV dye in there as it will make any future leaks easier to find.
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