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A/C Manifold Gauge Sets

Wamsutta

Well-known member
Joined
Jan 8, 2014
Messages
10,900
Location
Amarillo, Texas
What are you guys using and what do you prefer?

The A/C compressor in my car grenaded at the hottest part of the year.

I'm going to install all the parts myself, but I figure for the cost of hiring a shop to recharge the system, I could get an A/C manifold gauge set and do it myself. All I would need is a set that reads R134A. Also if you have any tips on flushing out the system, I would appreciate that too.
 
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engineer2

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Joined
Dec 13, 2009
Messages
11,837
Location
Chicago burbs
I use whatever is cheap. HF should be fine. Center dash vent temperature tells the tale. Should be in the 40's F. If parts or debris have contaminated the system, more thorough disassembly and flushing is needed. Pull down to 400 microns vacuum or better. A cheap Supco (or Amazon) vacuum gauge is adequate.
 

DGersic

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Joined
Mar 12, 2017
Messages
6,431
Location
DeKalb, IL
What are you guys using and what do you prefer?

The A/C compressor in my car grenaded at the hottest part of the year.

I'm going to install all the parts myself, but I figure for the cost of hiring a shop to recharge the system, I could get an A/C manifold gauge set and do it myself. All I would need is a set that reads R134A. Also if you have any tips on flushing out the system, I would appreciate that too.

You need more than gauges. You’ll need at least a vacuum pump and a micron gauge.

You can buy A/C flush at NAPA. You’ll need to replace more than just the compressor. Buy an O ring set at O’Reillys, and a bottle of PAG oil to lube the O rings.
 
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signcrafter

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Joined
May 9, 2012
Messages
12,563
I recently needed to replace a compressor and recharge the system and my pump and gauges were in a different state. Being that they are probably 15 or so years old I just bought new ones to get the job done. I ordered this kit from amazon and have used it twice now and will be using it again tomorrow and have been happy with it so far. https://www.amazon.com/dp/B0F6Y83BB7?tag=atomicindus08-20.

Rockauto has A/C kits that come with a compressor, condenser, expansion valve, dryer, oring kit, and pag oil for decent price and I've ordered half a dozen or so and haven't had any issues yet. You will need to vacuum the system down once you open it up. As for flush any auto parts stores sell it but it's expensive. I just bought a gallon from autozone for 60 bucks which is a lot cheaper then buying the quart size ones, it doesn't go very far and I usually have used 2 quart jugs in the past which comes out more then the 60 bucks for the gallon. I have this flush gun, https://www.amazon.com/dp/B0FSZ3WPZ9?tag=atomicindus08-20.
 

Bill Bowman

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Joined
Mar 28, 2007
Messages
3,158
Location
Metro Chicago
I would bet there's going to be a bunch of swarf floating around in your system. Will a flush get it all? Maybe. Maybe not. Best practice is to replace stuff, rather than try to "clean" it out. Some areas inside lines, and parts don't always flush out as planned. Ask Toyota about how that works out.
 

L.Cheapo

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Joined
Oct 23, 2014
Messages
6,054
All of my A/C tools are Yellow Jacket. Not cheap, but high quality and American made.

When I had a question, I called them. The nice lady who answered the phone transferred me to the engineer who designed the tool, who was obviously able to answer my question. That has value to me.
 
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