bump for info
This is a discussion on Replacement of A/C receiver drier within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I have searched too no success on many forums and found no answer so I apologize if I missed a ...
I have searched too no success on many forums and found no answer so I apologize if I missed a thread somewhere that answered my question.
02 wrx 106k miles
A/C not working, hasn't for a few months now. I bought an expansion valve and a receiver drier to replace mine (have chased the problem around, replaced all o-rings-high side hose-and compressor worked for 2 days and stopped again) figured its worth a shot.
The shop I took them to claimed that the drier cannot be replaced...that you have to buy the whole condensor but I have seen threads elsewhere that reference replacing just the drier; yes it is more common to replace both but my condensor does not have a leak and I can't afford one right now.
Does anyone have directions or a tutorial on how you replace it?
Any help is appreciated.
I had a similar problem on my '02. A fast leak that couldn't be found by usual means. Finally the shop found a leak in the evaporator and said I needed a new expansion valve. (I wonder if the bad exp valve caused too much pressure to build up and blew out the evaporator?) Anyway you might want to check there for leaks too although its a pita to get to under the dash. I also had them replace the thermosensors for the TSB out there; not sure if the freezing could have also contributed to evaporator failure.
Anyway, they recommended replacing the receiver/drier also but when they went to source it found out that you have to replace the whole condenser. I opted out. I tried to search as well and had no luck finding anything. Sorry.
In the mean time, the a/c stopped working again after about a month. Fearing the worst, I took it back to the shop and they discovered an O-ring failure on ones they had replaced; they figured they must have had a bad lot and did it under warranty. However, since I got it back there has been more noise coming from under the glovebox when I step on the gas. It's like the normal engine noise isn't being blocked as well, or a fan is running louder or something. I haven't poked around too much yet but any ideas on how they might have caused this?
have you had any dye added to the system? that should pinpoint your leak.
I added dye a long time ago and found one big leak at the compressor itself - took it to a shop and they found many leaks-
-high side/ low side hose o-rings (both sides of each)
-high side hose joint condenser side
high pressure hose
*as the shop had recommended
This is the time at which i was told the exp valve I had purchased was wrong part (found out later they were dead wrong) and couldnt be installed as well as the receiver drier not being replaceable (this turned out to be true)
Evac - recharge = cold air lasted for 2 days
So I am not going to pay 500 bucks for them to do the same thing they did last time + install the expansion valve. Just dont have the cash. So now since there is absolutely no pressure in the system Im just going to DIY the expansion valve (buying vacuum pump, pump oil, freon, pag 100 oil, etc. for half the price of taking it back to the shop) this way if i have any more problems (evaporator, thermosensor etc) i already have the tools I need to do the repairs myself and save $.