Search found 1197 matches

by JohnHere
Thu Mar 28, 2024 9:40 am
Forum: Automotive Air Conditioning Forum
Topic: Kubota farm tractor both low side and high side High
Replies: 19
Views: 10440

Re: Kubota farm tractor both low side and high side High

I had a similar issue with my Kubota B2601. It sounds like there could be a problem with the expansion valve or maybe a refrigerant flow issue. In my case, it turned out to be a malfunctioning expansion valve that wasn't regulating the refrigerant flow properly, causing abnormal pressure readings. ...
by JohnHere
Tue Mar 26, 2024 11:59 am
Forum: Automotive Air Conditioning Forum
Topic: 2010 Rav4 no ac power to switch
Replies: 2
Views: 52

Re: 2010 Rav4 no ac power to switch

If the system is only half full of refrigerant, ~8 ounces net weight, the binary or trinary switch (the switch with the three wires connected to it) has probably opened because of low pressure. It's actually doing its job and not allowing the compressor to run under such conditions. Before delving i...
by JohnHere
Sat Mar 23, 2024 8:37 pm
Forum: Automotive Air Conditioning Forum
Topic: C2 Corvette parts search
Replies: 6
Views: 577

Re: C2 Corvette parts search

My understanding is that the A-6 was not designed to cycle due to its small-diameter clutch, not because of the compressor itself.

What say you, GM Tech?
by JohnHere
Sat Mar 23, 2024 10:09 am
Forum: Automotive Air Conditioning Forum
Topic: Low Side Pressure
Replies: 8
Views: 415

Re: Low Side Pressure

Without re-reading this thread, I don't think we know the make, model, and year of this vehicle and whether it has a TXV or OT. Regardless, it's possible that the charge is "off" and/or that it has a restriction someplace, as suggested earlier. If it's an older vehicle and the A/C system h...
by JohnHere
Wed Mar 20, 2024 2:17 pm
Forum: Automotive Air Conditioning Forum
Topic: Walmart out of r134a refrigerant in Kentucky
Replies: 7
Views: 308

Re: Walmart out of r134a refrigerant in Kentucky

I happened to be in the Walmart Supercenter in my area today and checked whether they had refrigerant...ANY refrigerant...and they didn't. There's plenty available online—both R-134a and R-1234yf—that can be delivered to my local store for pick-up. However, some of it is sourced from offshore and is...
by JohnHere
Sun Mar 17, 2024 4:24 pm
Forum: Automotive Air Conditioning Forum
Topic: Walmart out of r134a refrigerant in Kentucky
Replies: 7
Views: 308

Re: Walmart out of r134a refrigerant in Kentucky

I don't think Walmart is getting out of the refrigerant business of selling the small cans. But with R-1234yf currently selling for about six times that of R-134a (per pound), it looks like the market for the newer refrigerant is going to be much smaller among DIY-ers. To buy any refrigerant in bulk...
by JohnHere
Fri Mar 15, 2024 7:40 am
Forum: Automotive Air Conditioning Forum
Topic: Compressor Won’t Shut Off, Freezing Evaporator
Replies: 13
Views: 658

Re: Compressor Won’t Shut Off, Freezing Evaporator

After the daily ambient temperatures rise in your area to 80°F and above, keep an eye on it after running it for a while. If you notice reduced air flow together with poor cooling, the evaporator has iced-up again due to a refrigerant leak someplace. Given the vehicle's age and mileage, the leak cou...
by JohnHere
Fri Mar 15, 2024 7:21 am
Forum: Automotive Air Conditioning Forum
Topic: line size
Replies: 9
Views: 441

Re: line size

The smaller the hose ID, the greater the velocity and pressure. So it might or might not work if you go with a #8 hose instead of the called-for #6 hose. Worse comes to worst, you'll have to plumb it over if it doesn't work. Another possibility that comes to mind is to use a #6 hose all the way from...
by JohnHere
Tue Mar 12, 2024 1:06 pm
Forum: Automotive Air Conditioning Forum
Topic: line size
Replies: 9
Views: 441

Re: line size

Unless I'm misunderstanding, I think you're mixing terminology a bit. Do you mean a #10 from the evaporator to the accumulator, and a #8 from the accumulator to to the compressor (on the LP side)? Also, the #6 from the condenser to the R/D, and then from the R/D to the evaporator (on the HP side), s...
by JohnHere
Sun Mar 10, 2024 7:04 pm
Forum: Automotive Air Conditioning Forum
Topic: Compressor Won’t Shut Off, Freezing Evaporator
Replies: 13
Views: 658

Re: Compressor Won’t Shut Off, Freezing Evaporator

Refrigerant loss probably is responsible for the evaporator freezing-up and blocking airflow on your 18-year-old Jeep. Before doing anything else, have a professional A/C shop charge the correct amount of refrigerant into the system, as suggested earlier, by recovering and noting what's in there now...