Search found 25 matches
- Mon May 27, 2024 9:40 pm
- Forum: Automotive Air Conditioning Procedures, Tips and FAQ.
- Topic: Overcharged system produces cold air... correctly charged blows hot air
- Replies: 5
- Views: 7723
Re: Overcharged system produces cold air... correctly charged blows hot air
I am stumped right now. I have a 2015 Nissan Sentra SV. I hooked up gauges to low side and high side. Low side was too high, about 60. High side was correct pressure. I recovered some of the refrigerant to the correct psi based on the ambient temperatures. The air was blowing hot. Then i added it b...
- Mon May 27, 2024 9:30 pm
- Forum: Automotive Air Conditioning Forum
- Topic: 2005 Avalon XLS AC air vent temps
- Replies: 12
- Views: 130
Re: 2005 Avalon XLS AC air vent temps
That is impossible to know without relative humidity. Also you need both high and low side pressures to gauge what is going on. FYI A/C performance test are also performed with Recirculated Air, High Fan speed, windows and doors closed and the readings are taken after the system has stabilize with ~...
- Mon May 27, 2024 9:33 am
- Forum: Automotive Air Conditioning Forum
- Topic: 1966 Oldsmobile A/C
- Replies: 13
- Views: 8894
Re: 1966 Oldsmobile A/C
I just looked up the part number of the Ford fan I run on my 1983 G20 with a small block 406 in it. It is Dorman 620-148 used on the 3.0L V6 Rangers in the 90s. Clockwise rotation, 18" diameter, 12 blades, same 3.25" bolt circle as a GM clutch, same 2.62" mounting diameter where it ce...
- Mon May 27, 2024 9:05 am
- Forum: Automotive Air Conditioning Forum
- Topic: 1966 Oldsmobile A/C
- Replies: 13
- Views: 8894
Re: 1966 Oldsmobile A/C
I advise staying far away from the highly flammable refrigerants you mention: R-152a, propane, and isobutane. They're very dangerous to work with, present a fire hazard should the system leak, and they're just not worth the risk, in my opinion. As already suggested, R-12 would be best because your ...
- Mon May 27, 2024 8:54 am
- Forum: Automotive Air Conditioning Forum
- Topic: 1966 Oldsmobile A/C
- Replies: 13
- Views: 8894
- Sun Mar 24, 2024 11:28 am
- Forum: Automotive Air Conditioning Forum
- Topic: C2 Corvette parts search
- Replies: 6
- Views: 8102
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? I have always heard that myself, however GM and Ford used millions of them in cycling clutch orifice tube systems from the factory and many of th...
- Sat Mar 23, 2024 6:19 pm
- Forum: Automotive Air Conditioning Forum
- Topic: C2 Corvette parts search
- Replies: 6
- Views: 8102
Re: C2 Corvette parts search
Are you going to keep it R-12, or do you intend to convert it to R-134a? if the latter, you'll need to re-calibrate your original POA (STV) valve to the "newer" refrigerant. If your original POA valve is intact and rebuildable, why replace it? Several professional rebuilders with an Inter...
- Sat Mar 23, 2024 5:53 pm
- Forum: Automotive Air Conditioning Forum
- Topic: Low Side Pressure
- Replies: 8
- Views: 8280
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 ...
- Fri Mar 22, 2024 11:15 am
- Forum: Automotive Air Conditioning Forum
- Topic: line size
- Replies: 9
- Views: 8811
Re: line size
In terms of liquid flow leaving the condenser I do not see the need for anything larger than a #6 myself in that application. GM used a #6 line even in dual evaporator systems without issue. The largest expansion valves and orifice tubes are much smaller in cross section at their metering area than ...
- Fri Mar 22, 2024 10:52 am
- Forum: Automotive Air Conditioning Forum
- Topic: Low Side Pressure
- Replies: 8
- Views: 8280
Re: Low Side Pressure
"I have seen a lot of older systems that only have a trinary switch on the reciever dryer" A trinary switch includes a LPCO: "The AC trinary switch has three functions: high pressure protection, low-pressure protection, and fan control" While technically that is true, a trinary ...