Ac accumulator/drier replacement

Information on some common auto air conditioning topics.
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Rasp933
Posts: 1
Joined: Wed Mar 22, 2017 1:34 am

Ac accumulator/drier replacement

Postby Rasp933 » Wed Mar 22, 2017 1:44 am

Hi.iam new here.
Iam a keep it short n simple.
I need to know if i replace the accumulator/drier on my 2002 civic do i need to get the ac system vaccumed n tested for leaks before i put in new freon?
Or iam good to just put in the new freon.?
Thanks
Dougflas
Posts: 158
Joined: Mon Apr 18, 2016 6:10 pm

Re: Ac accumulator/drier replacement

Postby Dougflas » Thu Mar 30, 2017 12:56 pm

Is it leaking or low on refrigerant now? You want the system to be leak proof before adding a new drier. If it does not leak now, recover the charge and change the drier. Vacuum the system down and add your refrigerant.
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Cusser
Posts: 140
Joined: Sun Apr 24, 2016 6:29 am

Re: Ac accumulator/drier replacement

Postby Cusser » Wed Apr 05, 2017 6:48 am

Rasp933 wrote:Hi.iam new here.
Iam a keep it short n simple.
I need to know if i replace the accumulator/drier on my 2002 civic do i need to get the ac system vaccumed n tested for leaks before i put in new freon?
Or iam good to just put in the new freon.?
Thanks


If there's refrigerant in there now, you must recover the refrigerant before you replace the accumulator/drier. But from your post it seems that you are replacing "just" the accumulator/drier - so I ask WHY?

Yes, the system must be evacuated/vacuumed, confirmed to hold vacuum, and then refrigerant added. EVERY time.

Your 2005 does not use "freon" (which is R-12), it uses R134a. Do NOT add any sealers or leak seal, R134a refrigerant and UV dye only are acceptable.
DarrylS
Posts: 14
Joined: Sat Apr 15, 2017 3:00 am

Re: Ac accumulator/drier replacement

Postby DarrylS » Sat Apr 15, 2017 4:30 am

Hi.iam new here.
Iam a keep it short n simple.
I need to know if i replace the accumulator/drier on my 2002 civic do i need to get the ac system vaccumed n tested for leaks before i put in new freon?
Or iam good to just put in the new freon.?
Thanks

Yes you will have to vacuum the system and yes you want to be sure it is leak free before adding refrigerant. Air left in the system will cause all sorts of problems and if you try to vacuum a leaking system you will pull air into it. System needs to be pressure tested for leaks not vacuum tested.

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