I say to keep it R-12 for sure, and NEVER add any sealant !!!

Tim wrote: ↑Wed Oct 06, 2021 8:05 am Inlet and outlet evap tubes similar in temp? If so find something else to worry about or maybe chase Mrs. Cusser around the house.

Good suggestion.


And I'll check the evaporator inlet and outlet tubes too !!!

Cusser, would pressures help us? Dave Maybe, but I haven't seen the need so far to measure the low and high side pressures, maybe I'm wrong. I am of the understanding - likely incorrect - that these systems are designed so compressor is always on (not like my 1998 and 2004 Frontiers which use an ev...

2011 GMC Yukon XL Denali, just purchased by us in May, 75K miles. R134a, dual AC. I rarely drive this vehicle, but did drive it on a trip from AZ to CA in the summer. Anyway, Mrs. Cusser drives it all the time, and I noticed when she returns from somewhere that the AC compressor cycles every few sec...

There is dye in the system so somebody was trying to find the leak at some point. Our 2005 Yukon had UV dye in in from the factory, or maybe it was our 1994 Suburban - or both; there was a sticker under the hood stating this. Both have been sold now, I don't know about our 2011..... I saw a PDF sta...

I can only conclude the evaporator is freezing. Maybe. And maybe it is low on R134a; this requires evacuation equipment to pull out and weigh the R134a. Check to make sure that the air flow is NOT being directed to the windshield or under the dash. There are up to 3 electric actuators which have th...

tbirdtbird wrote: ↑Thu Sep 30, 2021 9:25 pm It always amazes me that posters will write in and then completely overlook the advice given

Seems to happen a lot, and on many different forums and groups...

You didn't mention a new drier/accumulator.

what gauges do you guys use? I use R-12 service gauge set from well over 3 decades ago. I have both Ford/Mazda-type and GM/Toyota type high side adapters. I have one vehicle (1988 Mazda truck) still on R-12 (thanks to Tim at ackits.com for supplying a new compressor in 2014). I use R134a service ga...

There ya go, the forum owner ran an AC shop in the past Yep, and I had AC service done there twice (I was local). And have purchased at least four compressors, one evaporator, one vacuum pump, expansion valves, and plenty of miscellaneous stuff like driers from ACkits.com Why four compressors? Two ...