Automotive Air Conditioning Information Forum

Ok back on topic, these were the readings at noon today.

12:00PM
85F outside, I was in a covered garage that was not in the sun felt like 78-80F

Pressures at 1500rpm:
35 Low
225 High

With box fan in front
30 Low
200 High

So my thinking is the (new) Expansion Valve (bulb type) is ok.
There is ...

You can delete this entire post if you want.

Its not an "issue" really.

Its always about Money.

The latest most expensive thing out there is R1234YF and its more flammable than duracool.

Its crazy. Used overseas all the time and in the USA.

Cusser, I am still going to do some more testing,, the verdict is still out.
What I find odd, is I am really pretty good at installing and maintaining AC in these trucks.

It is a really simple system.

I find it strange that:

1) I now have two possibly defective thermoswitches all of a sudden ...

Its legal in all states except these.

Arkansas, Arizona, Connecticut, Florida, Idaho, Indiana, Iowa, Kansas, Louisiana, Maryland, North Dakota, Oklahoma, Texas, Utah, Virginia, Wisconsin, Washington, and the District of Columbia.

Luckily I do not live in any those places.


The legality lies in ...

Ok today, I took a break from it, but yesterday, best I can recall after it was running for about 5-10 mins and it was 87F outside I think, the readings were
30 Low side
200-225 High side with no fan in front of condenser.

Tomorrow I may take new readings to be certain.

I am running Duracool ...

Ok I had never done that before, taking the bottom of the evaporator case apart under the dash, but I did it.
It was not easy.

I moved it up and no change.

So I connected gauges once again and this time it looked to me like the expansion valve was at fault and to me that would explain why my two ...

I dread taking the bottom of the evap case apart, but I will do it and move it really close to the top and see what happens before I order an adjustable one.

Its such a pain to deal with this evap case under the dash.
I may unclip it and see if I can adjust the probe and see, but I feel like it will be the same.
I was thinking about an adjustable one, like if I have to go in there at all, I was thinking of putting one in that I can fine tune and be done ...

Yes I am sure its in the right place. There is mark where it goes.