Cusser, I believe that auto manufacturers make their caps with proprietary threads and size differences inside because I've had the same problem as you with replacements not threading on. Why they do that is anyone's guess. One would think that the caps would be standard across the industry with on...

Apparently, there are differences/two types of red high side R134a caps and also differences/two types of blue low side caps, see the photo below from a replacement cap assortment, see the differences. But I don't know what the internal differences are - anyone know ??? https://i.imgur.com/B7DnSaF.p...

Since Arizona has already had a few 100F days, I noticed that the AC in my 1998 Frontier wasn't as cold as it had been, and the AC compressor clutch was cycling way more than it had in the previous 20 years (I have a dashboard light in parallel to the AC clutch so I can monitor this). So today I wen...

I've encountered just a few service valve caps that leaked. One was on a R-12 refrigerator from the late 1960s that lost its charge due to a crack in the seal of the service valve cap (like with vehicles, never expect a service valve schraeder to seal 100%). And a couple of years ago one of the valv...

Not real hot up here yet so thinking it will reach 75F during afternoon Have a middle left vent thermometer set up. If at that temp on sunny day should I read around 50F or should it be colder at that 3 fan speed. The local radio show/shop owner/master mechanic here in Phoenix (now retired) used to...

I was able to get some time to take it to a quick ac service shop and they evacuated the system, pulled a vacuum and filled up with the proper amount of r134. My hopes were high but soon dashed as the clutch still didn't want to kick on. At least now I know what it isn't. Any other ideas? thank you...

Run your fan speed where YOU feel comfortable. I find on my '88 Mazda truck, 1998 Frontier, and 2004 Frontier (Arizona) that I use the speed about 3/4 of maximum. Of course with vents directed at occupants. When it has been parked in daylight, the inside-cabin air is hotter than the outside air, so ...

Simple answer: Air moves slower across the coil allowing for more time to remove the heat load. 1. Yes, the temperature of the air will be lower because of the low speed (see above). 2. The cooling of the person or cabin is determined by how many BTUs are exchanged. So the person will likely be mor...

JohnHere wrote: ↑Sat Apr 20, 2024 12:10 pm That said, if the system is cooling as it should, I would indeed leave it alone per your Item #1.

Exactly what I would do.

I am trying to workout my wife's A/C problem. 2007 Mazda MX-5 (Miata) GT. Today her A/C works great, but when it is hot outside it does not get cool at all vents are warm. I hooked up a manifold and went through the pressure test as per the Mazda manual. Here are the numbers: Engine warm @ 1500RPM,...