Automotive Air Conditioning Information Forum

Before I take it into a repair shop, I was wondering if anyone has experienced this problem. I am worried about someone saying I have to replace the entire system and getting scammed. Thanks in advance for any feedback or suggestions.

We've had 1988, 1994, 2005, 2011, and now 2014 Suburbans and ...

Tim wrote: Wed Nov 26, 2025 8:05 am Santech makes very good O-rings in general. IMO, HNBR is HNBR. If kept closed in a bag or plastic case, out of sunlight. Should be good. Are they flexible?

Yes, flexible; look and feel same as brand-new.

Question 1: Do refrigeration O-rings just go bad after several years in use?

Question 2: shouldn't the O-rings in the Santech Nissan HNBR assortment kit be fine, or do I really need to use O-rings from Nissan ?????

Question 3: would it be OK to use new Santech HNBR O-rings that were purchased a ...

JohnHere wrote: Sat Nov 15, 2025 10:45 pm I wonder why GM would apply it to the accumulator, a part that would normally be replaced every time the system is opened for whatever reason (and the decal lost after the first replacement).

Because it's GM.

Agree that it's a dumb location.

peanutaxis wrote: Fri Nov 07, 2025 12:38 am so I replaced the pump (with a second hand one)

A used AC compressor is a huge gamble. New compressors are available for this Mazda, depends on which engine you have:
https://www.ackits.com/comp-dks17d-4478

https://www.ackits.com/comp-dks17d-pv6-12v-4671

I'll concentrate on finding and using the Nissan-correct specification O-ring sizes.

"I'll try to check the sizes I have in that Santech MT2571 kit and other HNBR O-rings I have already, not super sure I can read difference between a 2.00mm O-ring and a 2.43mm one."

I went online, and if I ...

The ones we have are the same as the ones you have.

OK, thanks for confirming that the line is the same as I already have (and cut down to size in 2017). I'll concentrate on finding and using the Nissan-correct specification O-ring sizes.

"I'll try to check the sizes I have in that Santech ...

For whatever it's worth, looking up the Nissan part numbers provided in the service manual on the Nissan sites shows that it won't fit, and "search for parts that fit" comes up with the #8 O-ring...so weird, and Nissan is always replacing part numbers with new ones:
Apparently #92472-N8210 has been ...

Seeing if I can get someone to check the NV stock.

Thanks.



Back when we had the shop and got a fitting like that. I would place a spacer on the end and use a cutting wheel to remove a little of the end. Take off my spacer, used to cut straight and depth. Clean up the end, and always seemed ...

It was Murray Climate Control AC Hose - 56134, what I could get the next day up near Prescott. I even called Murray about the different "depths", and sent them a photo, said no one had ever had that issue before, sure.....

Factory compressor still, at 290K miles.