Question about what I think is a clog in a/c line

[TorqueEffect]

Well I picked up a can of brake cleaner to start cleaning out the a/c lines before installation, but one hose appears to be clogged, I first noticed when I sprayed the brake cleaner down the hose, and it spat out the top, and not dripped out the other end.

Is there some sort of valve in this hose that only opens with allot off pressure?

I can't think of any other reason why it would be doing this, I mean it is 100% blocked, even tried blowing through it, and nothing, not even a small hiss.

[dalebwilson]

Forgive me if I am off base here but are your hoses still connected at the firewall? If so, there is a thermal expansion valve on the other side of the firewall at the evaporator. This valve opens slightly when your a/c system calls for cooling. Otherwise, it remains closed. The TXV is connected to the high side or small hose.

[TorqueEffect]

Forgive me if I am off base here but are your hoses still connected at the firewall? If so, there is a thermal expansion valve on the other side of the firewall at the evaporator. This valve opens slightly when your a/c system calls for cooling. Otherwise, it remains closed. The TXV is connected to the high side or small hose.

My bad, the a/c lines are off the car. Just one hose in particular is not allowing anything to pass through it.

It is one of the rubber hoses that connects to the a/c compressor.

[dalebwilson]

Ok good. I know of no internal valve on the a/c hose. If it were mine, I would use a combination of a stiff wire and compressed air to clean the hose out. Remember to replace your accumulator/dryer and pull a good vacuum before recharging.

[bravekozak]

coat hanger time

[Gomez]

They still make metal coathangers? Lol

[sc72]

Is it possible that the hose has collapsed internally like front brake lines can do.

[1990new]

Would it be possible to puncture the flexible line from the inside with a metal coat hanger?

[TominMO]

Would it be possible to puncture the flexible line from the inside with a metal coat hanger?

Just be careful; get it as straight as you can, and don't force it through.

Here is a picture of a clog. I'm not sure how it would get in your brake line in the first place:

https://en.wikipedia.org/wiki/Clog

[sc72]

Just be careful; get it as straight as you can, and don't force it through.

Here is a picture of a clog. I'm not sure how it would get in your brake line in the first place:
https://en.wikipedia.org/wiki/Clog

Good one about the Clog lol and I didn't say anything about a (clog) in the brake line, what I am asking is, it possible for the AC line to collapse internally and cause a problem. Now about the hanger, take a pair of needle nose pliers and bend one end of the hanger over tight, then pinch it down tight against it's self, there ya go no sharp edges, then pull the hanger all the way through the AC hose. good luck

[TorqueEffect]

A piece of garage door cable did the trick.

A/C system, is all together, and charged. Seems to be working for the most part, just not super cold like I thought. Also the compressor isn't cyling, but I think that is just because it isn't getting cold enough to need to shut it off.

[twopass]

What did you find in there ? If a hose was stopped up What does your condenser flow like?

[bravekozak]

I think that is just because it isn't getting cold enough to need to shut it off.

I am going to use R-12 because of the low boiling point.
I can even get it locally on Kijiji.

[TorqueEffect]

What did you find in there ? If a hose was stopped up What does your condenser flow like?

Flow on the condenser was just fine.

Didn't see what the clog was in the line, but it cleared up by jamming the cable down it, then I hit it with brake cleaner

[F3BZ]

if comp is not cycling and register temp is too warm, might be too much refrigerant. there's a sight glass on the OEM system accumulator to help get close to correct charge. did you use guages when recharging?