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Old 07-29-2010, 08:32 AM   #11
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Quote:
Originally Posted by Savageman View Post
Located down under the right front wheel well cover there are 2 hose/tube assemblies running from the dryer and compressor up to the evaporator (you will need to peel back the plastic wheel well after you take out the 2 plastic fasteners and 1 screw). The evaporator ports are up at the firewall near the brake fluid reservior (you will see the 2 hoses going into it). Once the wheel well is pulled down you will see both hose assemblies with one of the hoses being smaller than the other with thinner tubing. That thinner tubing is actually in two lengths fastened together. If you trace the tubing back from the dryer midway to the evaporator you will find the fitting which connects the tube. (Assuming you have had your system evacuated of refrigerant) Carefully unscrew the nut and pull apart fitting. Look inside the tube (I forget which tube its in but you will see it in one of the two!) You should see that the orifice tube is simply pushed inside the tube and bottoms out in a kink in the tube so that it cant be pushed in too far. You will need needlenose pliers to pull it out. Replace with new one in proper direction and reassemble the tube. Now If you follow the tube further up towards the evaporator you will come to the pressure sensor fitting on the tube. I dont know if a metering valve exists, but there is an orifice block assembly that is brazed to the hose assemblies that attach to the compressor. As far as I know, that block and the orifice tube is what balances the refrigerant pressures. Hope that helps...

sure does.. thnx a bunch. this might be what he needs
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Old 06-07-2019, 03:24 PM   #12
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09 Focus AC Blows Cold through passenger Vents only

2009 Ford Focus (MK2 2nd Generation)
AC blows cold through passenger vents
and warm through drivers vents.
There is talk of this problem on Ford forums about a door being
partially open, but I have not read anything on a resolution
besides take it to a Ford dealer.
Duct tape over closed vents will have to be a temporary
fix for now as it is definitely cooling down the hot car
on this sunny day but July is coming.
The Ford dealer will find other things that are
in need of replacement here in Canada as
my Focus just turned 440,000km
thats 275,000 miles
The car is not worth the labor rate.
I am shooting for half a million km.
I know she'll do it. Hopefully with full AC
My 96 Taurus did 400,000km and still ran great
when I sold it for $700
Thank you for any replies!
Switchbacker
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Old 06-07-2019, 03:43 PM   #13
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That sounds like a door issue to me too, if you simply crawl under dash you may well be able to move the door by hand to get what you want.
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Old 06-07-2019, 06:08 PM   #14
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Some vehicles are known to leak a little bit of freon over the years (possibly an oz/year). They should have told you how bad the leak was. If it holds pressure/vacuum for 30 mins or so I'd just re-charge it and throw some dye in it if possible. I wouldn't be surprised if they had trouble finding any leaks and just blamed it on the evaporator.

Autozone might have an a/c manifold gauge set and a vacuum pump available for loan. It'll cost you $300+ but you get your money back when you return their stuff. It's not hard to learn how to service your own a/c if you think you're up for it, just don't attempt to use one of those single hose with a gauge filler'up on the low pressure side crap they sell, that won't turn out well.

Walmart sells freon (super-tech) here for about $5.90 a can.

In fact I want to say most vehicles leak at least a tiny bit because the systems aren't 100% perfectly sealed, and that's why we have driers/accumulators to deal with anything that does get in, as long as it isn't too large. That's my understanding at any rate. So for old vehicles, they may get low on freon over time, but shops want to make the beans, so they'll find something to blame it on.

Last edited by dhath81; 06-07-2019 at 06:46 PM.
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Old 06-07-2019, 07:07 PM   #15
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Quote:
Originally Posted by switchbacker View Post
2009 Ford Focus (MK2 2nd Generation)

AC blows cold through passenger vents

and warm through drivers vents.

There is talk of this problem on Ford forums about a door being

partially open, but I have not read anything on a resolution

besides take it to a Ford dealer.

Duct tape over closed vents will have to be a temporary

fix for now as it is definitely cooling down the hot car

on this sunny day but July is coming.

The Ford dealer will find other things that are

in need of replacement here in Canada as

my Focus just turned 440,000km

thats 275,000 miles

The car is not worth the labor rate.

I am shooting for half a million km.

I know she'll do it. Hopefully with full AC

My 96 Taurus did 400,000km and still ran great

when I sold it for $700

Thank you for any replies!

Switchbacker
You are low on Freon my 2010 Ford Focus did the same thing after I topped it off problem solved. I was beyond irritated when my car started doing this after doing some research people had mentioned a low charge can contribute to this problem, and sure enough that was it at least for me.

Sent from my LG-LS997 using FF Mobile

Last edited by zacautomotive; 06-07-2019 at 07:11 PM.
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Old 06-09-2019, 12:49 AM   #16
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They have a point, if low then evaporator may not cool throughout its' entire surface and depending on the outlet hole shapes part of the duct may get cool air and the other part not. It depends on how the outlet port from evap into ducts is shaped.

Measure the high side, that would tell you pretty quick.
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