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Thread: Getting A/C going

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Posts: 1-10 of 20
2012-06-23 17:02:26
#1
Getting A/C going
I bought a compressor from a forum member, I got a drier and r134 from Autozone last night, my gasket kit should be in in a couple of hours.

The drier I got doesn't have the sensor/connector on it that the oem one has, should I still use the new one but without the connector?

I got pag150 oil for the new compressor, where do I put it in and how much do I put in?

As far as taking the compressor off the car I think I can manage that, just loosen the alternator bracket and push it down so you can take the drivebelt off the a/c compressor, take the high and low lines off along with the clutch switch and put the new one on with new gaskets in reverse order.

I need help with this asap!
2012-06-23 19:54:10
#2
Is this for your b14? On the sensor part Swap it out of your old One n put it in on your new one with a new o ring.. The total oil amout for your compressor is 7oz if your system is dry and flushed put 5oz onto compressor inlet and the other 2oz on the drier..
2012-06-23 22:54:11
#3
I got the other compressor on, new o rings for high and low pressure sides, new dryer with pressure switch, when I went to put the freon in, the compressor kicked on almost right after I started putting the freon on, the gauge reads that I'm in the red on the low side but there is barely any freon that came out of the bottle

I don't know what is up but there isn't any cold air
2012-06-24 00:13:39
#4
Did u pull a vacuum? Hope ur not using those wimpy autozone gauges that are on the
Bottle.. Car should take about 28oz of freon. It should say on your hood the
Correct amount..
2012-06-24 01:12:08
#5
Not that I'm a cooling expert, but I think you need to bleed air out will feeding in the freon don't you? Also why didn't you just get the freon cans that have the lube in them? Again not an expert or even a novice by any means, but I've done a house and 2 car charges.

Here this may help:


2012-06-24 04:50:46
#6
U need to pull a vacuum to remove moisture out of the system otherwise your system will start producing water inside and ice up and will build calcium and eat up our evaporator and other components.. Pull a vacuums for at least 30 min. Close it and let the vacuum suck in the freon..
2012-06-24 04:53:31
#7
yeah you need one of the machines to pull the vacuum and it can also fill it too
2012-06-25 00:46:10
#8
Didn't have a vacuum pump and r134a gauges readily available, it was a long shot what I tried, I'm not surprised it didn't work. Now that there is some freon in the system though, what is the best way to discharge it without taking it somewhere?
2012-06-25 03:42:59
#9
Originally Posted by SentraThis96
Didn't have a vacuum pump and r134a gauges readily available, it was a long shot what I tried, I'm not surprised it didn't work. Now that there is some freon in the system though, what is the best way to discharge it without taking it somewhere?


release it to the atmosphere

u can rent a vacuum pump from autozone i did in the past, untill i bought one..

just buy some cheap gauges from harbor freight for like under 50 bucks..

pull a good vac for 30 min to 1 hour.. close it and add one bottle of freon to get it going and charge to correct amount...

remember charge through your low side not highside.. ive seen people trying to do it and wonder why it isnt getting any freon...and blow shit up..

if your compressor ceased u might wanna do a flush and replace the expansion valve cuz it can get plugged up with contamination and cause your a/c system not to function correctly...
Last edited by SERIO_PEDO on 2012-06-25 at 03-45-09.
2012-06-25 04:03:36
#10
Originally Posted by SERIO_PEDO
Originally Posted by SentraThis96
Didn't have a vacuum pump and r134a gauges readily available, it was a long shot what I tried, I'm not surprised it didn't work. Now that there is some freon in the system though, what is the best way to discharge it without taking it somewhere?


release it to the atmosphere

u can rent a vacuum pump from autozone i did in the past, untill i bought one..

just buy some cheap gauges from harbor freight for like under 50 bucks..

pull a good vac for 30 min to 1 hour.. close it and add one bottle of freon to get it going and charge to correct amount...

remember charge through your low side not highside.. ive seen people trying to do it and wonder why it isnt getting any freon...and blow shit up..

if your compressor ceased u might wanna do a flush and replace the expansion valve cuz it can get plugged up with contamination and cause your a/c system not to function correctly...


^^ This is very well said, and the ONLY way you will get your a/c working. The longer you pull full vac, the better. I have heard of people leaving them overnight. Without getting nearly every molecule of water, co2, nitrogen, and other air out of the system it will never work.

I am currently in the process of collecting parts to convert my NX from R12 to R134a. It's actually sad since the system is still charged with R12 which runs at much lower pressure, but my compressor froze solid while I was driving. It separated my crank pulley damper violently.
Last edited by Will on 2012-06-25 at 04-06-19.
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