Automotive Air Conditioning Information Forum

Vintage Air returned my call today. They said the high/low numbers are good. They suggested I turn down the temperature control to try to maintain 38/40 degrees out of the vents.

I wouldn't add any refrigerant until we know how many ounces (net weight) of refrigerant is recommended for this system and how much was put in.

Originally, did you charge it by weight or by pressures?

You mentioned vapor lock. Is that in the fuel system?


Vapor lock reference is fuel system ...

Is the evaporator icing-up and blocking airflow after running the system for a while? Evaporator icing could explain the cold-to-warm-to-cold cycling.

At a 30°F vent temperature (too cold) coupled with the low, low-side pressure, the system appears to be undercharged.


Should I try adding a ...

I have a Vintage Air system in my 55 Thunderbird. I installed it last year and it worked very well. This summer, the air goes from cold to warm, intermittently. It does not seem to be related to any RPM or MPH

I measured static pressure with car off Low = 95, High= 100.

Specs from Vintage air ...

I just installed a Vintage AC system designed for my car. I added a 10" electric fan (comes on when compressor turns on) to support the mechanical fan (also upgraded to 6 blade steel fan)

These cars run very hot and I want to add some insulation to the floor. Under the seat there is no rug or ...

I just installed the Vintage Air kit on my 55 Thunderbird. The tech from Vintage Air suggested that I insulate the low side hose (from evaporator to compressor) because there is a lot of heat in the engine compartment. What is the best product to use for this?

Should I consider insulating any other ...

Had a ground issue. Bracket for compressor and alternator is powder coated

Alternator was fine because one of the mounting bolts goes directly into the engine block

Compressor needed a jumper to ground. I mounted the compressor so long ago I forgot all about it

I couldn’t get the Freon to load ...

OP, if you have a newer can tap with a flat pin (not sharply pointed) inside, then screw it directly onto the can without the plastic adapter, which isn't needed in this instance.



I actually have both the pointed and flat ended taps.................... I used the pointed one with the blue ...

I cannot seem to get a tap that will work with the newer cans of R134A. I had the tap with the point (for the older cans), I bought a new tap that has a flat spike................. I also bought an "adapter" (blue plastic screws on the can), I tried both taps with the plastic adapter

I can't seem ...

Due to conflicting specs on the internet (and no visible sticker in the engine compartment) I added some PAG100 and later found for m y year Jeep Wrangler, 2001, I should have used PAG46. I replaced the evaporator and accumulator and added 2 ounces to each.

Could this be a problem?