Auxiliary AC Hose Assembly Part Number

[04MCS]

Trying to order the AC hose assembly that brings the refrigerant to the rear auxiliary AC system. I tried filling mine today and heard and then found all the refrigerant dripping out somewhere above the passenger rear tire. Having a real hard time finding the correct part, other than the $400 aftermarket kit offered by Auto Cooling Solutions. Also, saw a youtube video that mentions that the rear lines come in 2 pieces and need to be spliced anyways. i can't find the damn part number to even begin to verify this. Any help would be appreciated. Thanks.

 

[04MCS]

Alternatively, if anyone can tell me the fitting sizes for these two lines so I can order a block-off kit. I've used the Aux a/c about 4 times in the 13 years I've had this Tahoe. Thanks!

 

[Woodblocker55]

Rock Auto has the whole set $189 for my Yukon Xl .go by the RPO code

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[04MCS]

Thanks for the response. They have it for $156 now, unfortunately they want $127 to ship it to me. Probably because of the crazy box size I'm guessing.

 

[trailblazer]

Well someone must sell a block off kit because my ‘09 has one; that is how it was when I bought it a year ago. I’m considering searching down the culprit and putting it back into service. I have done this before with an ‘08 Suburban.

Above the right rear wheel along the frame rail, you can see the refrigerant tubes. The leak in the Suburban was caused by stones being caught between the tubes and it cutting into them. Yup, if GM would have wrapped them with tape or sleeved them for a few dollars more, it would have lasted so much longer.

Buy a UV light and some UV dye injection to find the leak. If you start searching and it’s a hot mess with UV dye everywhere then take several cans of brake cleaner and clean the area so you can pinpoint the leak.

You can actually buy a tube patch kit. It’s a Michigan company that makes them specifically to repair holes in A/C tubes. You cut out a section and install the all-inclusive kit. That or cut, install nuts, flare, and tighten.

If you look at the second photo, you can actually see where the tube degraded. IIRC, I tried welding it too with that aluminum brazing crap but that didn’t bond well. There are solutions out there after you locate the leak.






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[bobo49505]

Auto Cooling Solutions also has block off kits. i got mine for $40 or 50 if your system is empty it takes 10 min to remove hoses and put caps on. then have it recharged.

 

[Woodblocker55]

Look in to hoses google it search YouTube welding air conditioner lines to hose crimps .. there might be local guy does custom lines . I found one 35 miles away . Ask local body shop. [emoji106]

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