Is there an air conditioning "stop valve"???

In article <fGnfk.75074$kx.58668@pd7urf3no>, "Calab" <[email protected]>
wrote:

> I'm going to try and find the leak in my A/C and have a question...
>
> If I remove the compressor, and blow air into the high side line, should I
> get air/oil out the low side line? Or is there a valve of some sort that
> would block this?

Some version of expansion valve.

> Last time I had the A/C open I was trying to flush the lines and I wasn't
> able to blow through the system.

The proper way to flush is to disconnect each individual component.
You can't flush the receiver/drier and you can't flush the compressor...

"aarcuda69062" <[email protected]> wrote in message
news:nonelson-F25EB7.12175216072008@news.mil.sbcglobal.net...
| In article <fGnfk.75074$kx.58668@pd7urf3no>, "Calab" <[email protected]>
| wrote:
|
| > I'm going to try and find the leak in my A/C and have a question...
| >
| > If I remove the compressor, and blow air into the high side line, should
I
| > get air/oil out the low side line? Or is there a valve of some sort that
| > would block this?
|
| Some version of expansion valve.
|
| > Last time I had the A/C open I was trying to flush the lines and I
wasn't
| > able to blow through the system.
|
| The proper way to flush is to disconnect each individual component.
| You can't flush the receiver/drier and you can't flush the compressor...

That's what I figured, but the expansion valve is buried under the dash in
my 1993 Mazda 626. I was trying to avoid a lot of dissassembly. Everything
else is easily accessed.

Guess I'll need to figure out exactly where the valve is and how to get to
it.

Thanks!