Search found 1723 matches

by JohnHere
Thu Sep 11, 2025 11:32 am
Forum: Automotive Air Conditioning Forum
Topic: 2015 Tahoe AC pressures and temps wired
Replies: 5
Views: 1765

Re: 2015 Tahoe AC pressures and temps wired

Appreciate your following up with the solution.
by JohnHere
Tue Sep 09, 2025 9:20 am
Forum: Automotive Air Conditioning Forum
Topic: Airconditioner turns off but will not restart.
Replies: 3
Views: 17804

Re: Airconditioner turns off but will not restart.

What did you do to fix the problem?
by JohnHere
Sun Sep 07, 2025 1:23 pm
Forum: Automotive Air Conditioning Forum
Topic: 40' Fleetwood motor home.
Replies: 1
Views: 91

Re: 40' Fleetwood motor home.

Chances are, the compressor won't engage with just a few ounces in the system given that the system holds 3.2 pounds of refrigerant.

I wonder whether your low-side service port adapter is actually depressing the Schrader valve enough to get any refrigerant into the system or whether you're charging ...
by JohnHere
Wed Sep 03, 2025 10:06 am
Forum: Automotive Air Conditioning Forum
Topic: 1990 Pontiac 6000 V6 not cooling well
Replies: 3
Views: 1182

Re: 1990 Pontiac 6000 V6 not cooling well

The 52 PSI reading on the low side translates to an evaporator temperature of about 55°F. By the time the air passing over the evaporator gets into the cabin, it will be warmer than that, which explains the little to no cooling that you're experiencing.

You'll need to get the refrigerant charge ...
by JohnHere
Wed Sep 03, 2025 9:46 am
Forum: Automotive Air Conditioning Forum
Topic: Fitting modern hvac unit to old car
Replies: 6
Views: 2418

Re: Fitting modern hvac unit to old car

If you can locate a complete Mazda A/C system from about 10 or 12 years ago, it will be a *self contained* system using a fixed-displacement compressor that is not ECU/BCU controlled. Anything later than around model year 2016 will have a variable-displacement compressor and ECU/BCU control.

The ...
by JohnHere
Wed Sep 03, 2025 9:13 am
Forum: Automotive Air Conditioning Forum
Topic: Sanden compressor in "72 Monte Carlo
Replies: 2
Views: 158

Re: Sanden compressor in "72 Monte Carlo

A few questions and comments:


Note, evaporator, condenser, expansion valve, POA and drier have all been replaced with new items.
After replacing all these components, is the system now completely "dry" (except for the Sanden compressor), or did you run the system afterwards with the old ...
by JohnHere
Sat Aug 30, 2025 12:25 am
Forum: Automotive Air Conditioning Forum
Topic: 2015 Tahoe AC pressures and temps wired
Replies: 5
Views: 1765

Re: 2015 Tahoe AC pressures and temps wired

From the compressor failure, it's probable that debris is still partially blocking the system.

Did you get a look at the old oil while replacing the components you mentioned? If so, it was probably black in color, which would require a thorough system flush. Then, new oil would have to be added to ...
by JohnHere
Sun Aug 24, 2025 9:42 pm
Forum: Automotive Air Conditioning Forum
Topic: 1959 Thunderbird - TXV Valve Inlet Screen Help
Replies: 4
Views: 2370

Re: 1959 Thunderbird - TXV Valve Inlet Screen Help


... . It sounds like you're saying that not all TXVs need an inlet screen, am I overstating that?
I saw the UAC ex10362C, is this something (if it fits) I can run in the inlet of the TXV? I guess my main concern is the TXV orifice getting clogged over time.
The type of screen you mentioned ...
by JohnHere
Sat Aug 23, 2025 2:49 pm
Forum: Automotive Air Conditioning Procedures, Tips and FAQ.
Topic: Vent temp only at 59 degrees...
Replies: 6
Views: 2374

Re: Vent temp only at 59 degrees...


I hooked up my gauge set today. It was 86F outside. The vent only blew 70F.
Here are current readings:
86 degrees F outside
engine at 2000 rpm
compressor on
readings Low 23 psi, High 340 psi
vent 70
When the engine was idling at 800 rpm, low side was 43 and the high side pressure was 230. At 230 ...
by JohnHere
Sat Aug 23, 2025 9:03 am
Forum: Automotive Air Conditioning Forum
Topic: AC problem
Replies: 2
Views: 1320

Re: AC problem

By the model name of your car, I take it that you're located in Australia. Welcome to this USA-based Forum!

Even though your 2016 Kia Cerato (Forte model in this country) has a VDC with a manual control valve, the latter of which you already replaced, the system might not have the precise weight of ...