That line won't work on mine. I have both the small and large suction lines made together into a block fitting that bolts to the "H" valve mounted on the firewall. I am going to have to get both the suction line and the discharge line as an assembly.chuzz said:Advance Auto Parts shows they carry the suction line for $93.69. Their part # is T55591. No luck finding the discharge line, though.
That's why when I was looking on ebay and different places, I thought "I am not going to want a NOS replacement that has been laying on the shelf, it mght not be the barrier type hose". I believe this hose is just bad. I have never had a problem like this with a r134a conversion. It's true what you said about the molecules, but it's well known that after a hose has been exposed to r12 and it's oil for a long period, the hoses become "seasoned" and USUALLY do not leak the r134a through. Either my hose is bad, or that theory didn't work this time.B10alia said:You need to get hoses rated for R134a. The molecules are different sizes and the tolerances that would hold the larger R12 molecules in don't hold the smaller R134a molecules and they seep out. Take a look and see if you can find any Gen II minivans in your local junkyard (1991-1995) with the 2.5. I wouldn't be surprised at all if the hoses for a later van would fit yours. The changes to the vans were more evolutionary than anything (aside from styling) from Gen I to Gen II from what I understand. The Nippondenso compressor that you probably have (10PA17, may have a suffix, i.e. A,B,C) was extremely common on the K-based cars, so something from, say, a '94 AA or AP, which are still pretty common, might work, and would be already set up for R134a.
I am googling that number and nothing is coming up. My system has no rear A/C so that should be correct. We all know how the aftermarket parts people try to make "one size fits all" to keep less parts on the shelf, and sometimes it's "supposed" to fit, and we have all been there when it "barely" fits. They all show a 6 cyl application, no 2.5.ImperialCrown said:I show a suction hose part # of 3849782 for the single A/C system (no rear). It does not discern between 4 or 6 cylinder applications.
I asked a local garage and they gave me a place that is supposed to be able to make up hoses. I am going to check and see if they can do it and how much it would cost. I don't know if they can deal with those block type fittings or not. I was thinking if there was a way, I could possibly silver solder a standard fitting somehow on the short metal lines on the block, and then use a universal type hose. Maybe that's what the garage is going to do, I don't know.KOG said:Look for a local hose shop. Truck parts stores, industrial parts distributors or hydraulic hose shops often can do A/C lines using your existing fittings.
Thanks for that ebay link. I need to do some more research. It's funny that they list that one as fitting the v6 also. I am now wondering if the v6 listed hoses really would fit the 4cyl afterall. I would never buy that NOS one for r134a, but I am hoping if the aftermarket v6 hose does fit, that they are using the better barrier type hose when they are making them.ImperialCrown said:The dual lines were part # 4462745 - no Google hits either.
The discharge line # 4462149 looks like both hoses together and got an e-bay hit:
http://www.ebay.com.au/itm/87-88-Grand-Caravan-Voyager-A-C-Suction-Liquid-Line-NOS-4462149-/370671337531
I agree that the old refrigerant hoses may not be very reliable with R-134a and may need to be updated with new hose. If you can save the hose ends, a length of generic R-134a compatible refrigerant hose could be cut and clamped to the ends.
The Chrysler TSB # 24-01-95A for converting R-12 systems to R-134a (the right way to do it) would be incredibly expensive to do as it asks to replace many major components.
"Hybrid" refrigerants and oils that claim to be safe with either system may actually damage some components and introduce leaks.