Hi gang,

I've been volunteered to replace my son's A/C compressor in his Jeep as his is locked up; son does not want a "compressor bypass kit" installed. 2 questions;

1) Any tips on getting the right one the 1st time from eBay?

2) 40 years ago I used to charge automotive A/C units and install A/C systems but have forgotten a lot; I still have my guages though.
a) Since the A/C lines are being removed I assume I'll have to rent an A/C vacuum pump from Autozone and use it 30 - 45 monutes first - correct?
b) What kind of freon do I need to recharge the system with - I've heard R12 might not be sold anymore at autozone; I don't even know what's in the Jeep system now?
c) 40 years ago, We would add 5-6 cans to a system - any guestimate how much I would need for this job?
d) R134a would need to be used?

Thanks for the read,
Mark

 

You're going to use R134a. If I remember correctly 20 ounces which is less then 2 small cans.
Do you still have your vacuum pump?
Probably should replace drier and the one line that has the orifice in it.
Flush everything else as best you can.
Then check that the system holds vacuum.
Don't see any problem with getting the right one.
Getting a reliable one off Ebay not so sure.
Despite the savings Ebay would not be my go to for something like this but that is me.

 

When I did mine almost 4 years ago got my compressor on eBay it may of been a 4 seasons brand but cannot remember and its no longer in my buying history. Also don't forget to to buy the correct compressor oil. I think besides the oil that came in the compressor used the general rule of 2 ounces more per item replaced/flushed. Also as Ralph77 stated replace the drier and the line that has the orifice. I bought a vacuum pump as those cheap pneumatic ones just takes to long to pull down a good vacuum.

 

Hi Ralph - thanks for the quick reply!! Never had a vacuum pump - those were always furnished by the dealerships I worked at - the guages were considered a tool and the mechanics (me) were required to purchase those.
I was going to do the tool rental at autozone or o'reillys for the pump rental.
My son is really strapped for money and so am I being retired; Social Security doesn't pay much, but will see what kind of deal I can get at autozone for a replacement compressor.

Thanks,
Mark

 

Thanks Country2 for the reply. Most of the new or rebuilt compressors on eBay state they are precharged with oil. If the compressor is the only item we'll be replacing I'll just need to add freon after using the vacuum pump, right?...

 

My thinking about not buying an Ebay one leans more towards a warranty situation.
Certain things I just don't buy online.
I don't know how the warranties work and don't feel like finding out.
If there is a problem I don't want to have to jump through hoops to get it taken care of.

But country2 does bring up a good point about the oil that I did forget to mention.
There is a breakdown of how many ounces should go in what component.
What to say it is less then 8 ounces total.
And you have to use the right stuff.

 

I guess I'll probably end up having to buy this - here's what I found locally for $250.00:

 

Nevermind...saw the kit your getting.

 

See here is the thing with me. I don't really care about AC.
I bought my Jeep kinda running and not really driveable about 7 years ago.
Nothing to savage and kinda cheap.
One of the reasons was cause the AC compressor had seized and took the belt with it.
So knowing the bypass pulley existed bought one.
Worked out the issues with the Jeep and the more she behaved herself the more I fixed.
Well then I got it in my head to fix the AC. That was about 5 years ago.
Every year I try one thing. Until last year. Well down to believing that my small leak is coming from either the
evap core or the condenser. Condenser is nothing. Evap on the other hand.........
Maybe someday. LOL.
Did the AC work as it should before the AC compressor seized?
If money is tight I say just do the bypass. It uses the stock belt.
Guessing it does get hot in GA though.
Save up to fix the AC down the road. Gotta figure talking about at least a couple hundred dollars here.
And you could end up like me. Spending all this money and still not really having AC.
Again don't care. Don't even mind that I spent the money.
More a I want things to work as it should.
When I do try to fix it I use it more just to see how long my most current fix holds.
If it worked as it should probably turn it on twice a year. More a roll down the window kinda guy. MLOL.

 

Do you have a link to that?
Cause the orifice in my '00 is not something you can replace. Which kinda sucks.
You have to replace the line that has the orifice in it.
Least I am pretty sure you can't.

 

yea, pull a vacuum let it hold for a while to make sure no leak...I let mine sit overnight but thats just me... a hour of holding should be good enough...think I had to jump out the low side pressure switch to get the compressor to kick in to pull from the cans.

here is a good link on the oil
http://www.techchoiceparts.com/refri...apacities/jeep

 

Ours you got to replace the line and yes it does sucks..

 

Make sure the drier style matches yours I remember the one I got sent was wrong.

 

That is most likely the right drier for him.
There was some kind of change around '99, maybe '00 I think, that some used the black one like that and
then went to the silver one. Which is what I had to use.