In the middle of tearing apart my volvo to replace the evaporator. How do I dsconnect the A/C lines from the evaporator under the hood. I see a black ring around the attach point, any secret to getting that thing apart?

You need a special tool to get the A/C lines loose from the evaperator.

Tech,

Got the special tool ($10 for 4 sizes at autozone) and everything is back together. Im down to refilling the system. I have a can of dryer, a can of sealant and a can of freon. Do I really need to vacuum the system? If so, how do I do that and what tools are needed? If not I'm going to follow the directions on the DIY kit I bought and go from there. Any other recommendations? Thanks

Also, what tool do I need to use to get the connections back on?

Nothing to go back on they will just snap back on.

One side snapped on the other side just slides back and forth without locking. Should I try clamping it down with a pair of plyers or does it have to be replaced?

Got everything put together, 4 0z of oil, vacummed the system, 4 0z of oil, and recharged. It's blowing super cold air again and no leaks.

One last question. My SRS light is now on - I've checked all the connections. Anything else I can do? No codes in the OBD - kinda at a loss for ideas on this one. Tech, thanks for the great instructions on the evaporator replacement - I would not have attempted this fix without it.

Jim

I think you may need to get the dealer to reset the SRS.

You have the passenger side airbag plugged in?

Also if you turned the key on before you had everything plugged in it would have set a code. You will have to find a scanner that reads SRS codes.

The average scanner won't read SRS codes.

Hey guys, what is the name of the special tool you are referring to that removes the AC lines from the evaporator. Is it an Orifice Removal Tool?

No it is not. I think the specific name is A/C line quick disconnect tools.

Just a note regarding recharging my 95 850. As best I have been able to find out, this system requires being recharged under a vaccuum. Simply using a recharge bottle from Advance, AutoZone, etc does not work. At least in my case it wouldnt work, and that was just trying to add some freon to get the pressure back right. Under a completely discharged system, I cannot imagine it working without doing so with the proper equipment under a vaccuum.

I tried doing so multiple times on my own, but as soon as I took it to an A/C place that could do so under a vaccuum properly, it worked great and blew at a cold 33 degrees (actually too cold i think as it would keep freezing up, and an apparent leak made it quick working again as soon as its pressure dropped below the acceptable amount).

In any case, recharging under a vaccuum is required from what I can tell, which I think is not something most DIYers can do (or I just dont know how to do so).

lets say i think i have a clogged or leaking hose evap (the notorious water leaking on pass side), would i have to do allt ehse steps?

No you can fold down the carpet behind the radio area of the dash on the side. Thne there is a plastic cover. Closest to the dash pull the panel towards the dash and slide towards the back of the car and remove it.
Then you can see the drain hose.

thank you! i will go try that now and let you know the results!

is it a black hose that leads into the floorboard? seems like its fine.

i notice that i notice the water drip out around the pass side when i turn left. sometimes i can hear the water dripping somewhere in the dash, then i turn left and it all comes out on the pass side.

If you can HEAR the water dripping, then sounds like your heating coil is busted.







Sorry, that was just a guess-talk.


This post has been edited by ampangbear: May 26 2008, 10:21 PM

Did you remove the hose and blow into it?
If it is clogged you will need to blow into it to try to unclog it.

Tech, what about the use of the 'cleaning chemicals' for those places? Some say it erodes the material.

What say you?

no i havent removed it, but i will try...i just know if im at a stand still and i have the ac on, i can hear water but see no leak...i turn left and woooooooooooooooooooooooooooosh water dripping down the pass side