Ac compressor compatibility?
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Mountain Pass
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Hotshot
Joined: Jul 2008
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From: N.GA Mountains
I’ve put that orifice tube in dozens of trucks. I doubt that is the issue.
The low side is very high. Either the system is overcharged (or possibly too much oil???
) or there is an obstruction somewhere.
Were you able to flush all the lines and evaporators/condenser/etc out?
The low side is very high. Either the system is overcharged (or possibly too much oil???
) or there is an obstruction somewhere. Were you able to flush all the lines and evaporators/condenser/etc out?
FTE Chapter Leader
Joined: Jan 2005
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From: Henderson, NV
I’ve put that orifice tube in dozens of trucks. I doubt that is the issue.
The low side is very high. Either the system is overcharged (or possibly too much oil???) or there is an obstruction somewhere.
Were you able to flush all the lines and evaporators/condenser/etc out?
The low side is very high. Either the system is overcharged (or possibly too much oil???
) or there is an obstruction somewhere.Were you able to flush all the lines and evaporators/condenser/etc out?
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Mountain Pass
Joined: Dec 2019
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I’ve put that orifice tube in dozens of trucks. I doubt that is the issue.
The low side is very high. Either the system is overcharged (or possibly too much oil???) or there is an obstruction somewhere.
Were you able to flush all the lines and evaporators/condenser/etc out?
The low side is very high. Either the system is overcharged (or possibly too much oil???
) or there is an obstruction somewhere.Were you able to flush all the lines and evaporators/condenser/etc out?
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Mountain Pass
Joined: Dec 2019
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Yes it could be too much oil or too much refrigerant but the problem only started for your wife after it ran okay for awhile, right? Did you fill refrigerant by mass or by watching the pressure? By mass is most accurate. Also like SSJ said, how did you evacuate the system?
FTE Chapter Leader
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From: Henderson, NV
well iv been doing field ops for the past 4-5 months and haven’t had the chance to really figure out what’s going on with it . the temperature outside getting hotter everyday and when I started to drive it so has my wife she said it wasn’t getting as cold I filled by mass and pressure and I blew the lines out and everything completely
When filling by mass, you weigh the bottle of refrigerant as you fill the system and stop when the bottle is lighter by the mass of refrigerant specified for the system. If memory serves, ours calls for 42oz. It also calls foe 9oz of PAG 46 oil.
When you evacuate a system, you’re supposed to pull it down to as close to a perfect vacuum as possible.
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Mountain Pass
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it said 68oz of Freon to fill the ac system up so I got 6 12oz cans and the last can I used about half of it so it should have put me under 68oz by a little that’s what you mean by “mass” correct ? And “pressure“ I was checking the gauge set just to make sure I didn’t over charge the system. And “blew out the lines out “ I meant by flushing it . I took everything apart within the ac system and blew out all the lines and evaporators with my flush kit and air compressor
FTE Chapter Leader
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From: Henderson, NV
I forget your history. Is this for an Excursion with rear air? Did you purge the refrigerant supply line each time you swapped cans? Also, you cannot simply blow the system out with compressed air. You have to use a vacuum pump to evacuate it.
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Mountain Pass
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So I should use one of these 38639 orifice tubes rather than the motorcraft one I just ordered this morning? (lol, oops)
https://www.rockauto.com/en/moreinfo...&pt=6936&jsn=3
Have Rock Auto sending me a new Motorcraft compressor/clutch assembly and accumulator. I took the old compressor out about a year and a half ago and put a bypass pulley on but need to get the A/C going again. I'm not going to bother buying the special tools needed to fix it myself one time so I will take the parts to a shop and let them do it but still am trying to get an idea what is going on. I did seal the lines going to the back of the compressor with rubber plugs and wrapped it tight with duct tape. Looks like a mess but it should have kept the crud out of. One part I don't understand is how to know how much oil to put in. Basically I am just replacing the compressor, accumulator and orifice tube. The condenser is newer (front end was wrecked and the whole cooling stack got replaced) and I assume the evaporator is the original one.
https://www.rockauto.com/en/moreinfo...&pt=6936&jsn=3
Have Rock Auto sending me a new Motorcraft compressor/clutch assembly and accumulator. I took the old compressor out about a year and a half ago and put a bypass pulley on but need to get the A/C going again. I'm not going to bother buying the special tools needed to fix it myself one time so I will take the parts to a shop and let them do it but still am trying to get an idea what is going on. I did seal the lines going to the back of the compressor with rubber plugs and wrapped it tight with duct tape. Looks like a mess but it should have kept the crud out of. One part I don't understand is how to know how much oil to put in. Basically I am just replacing the compressor, accumulator and orifice tube. The condenser is newer (front end was wrecked and the whole cooling stack got replaced) and I assume the evaporator is the original one.
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Looks like a Motorcraft part number YG-343 orifice tube for a 2001-2012 Ford Escape (among many others) that cross references with a "38639" tube?
https://www.partsgeek.com/ctxg24r-fo...=Ad+group+%231
https://www.ebay.com/itm/28425907343...0049#vi-ilComp
I guess this one has a smaller opening than the stock one?
https://www.partsgeek.com/ctxg24r-fo...=Ad+group+%231
https://www.ebay.com/itm/28425907343...0049#vi-ilComp
I guess this one has a smaller opening than the stock one?
Cargo Master
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From: Rock Hill, SC
The orifice diameter on the orange one will be smaller, it's designed for a smaller evap coil. Used in the larger Excursion evap coil, it in essence, is slightly starving the coil of refrigerant, therefore creating a greater drop in coil pressure and temperate, which also creates a risk of the coil freezing over because it's under saturated.
I tried it last year, didn't like it, took it out and installed the OE.
The smart VOV is available too, but I've never tried it.
https://aircondition.com/vov/benefit.htm
http://www.frostycool.com/standard-d...n-replacement/
I tried it last year, didn't like it, took it out and installed the OE.
The smart VOV is available too, but I've never tried it.
https://aircondition.com/vov/benefit.htm
http://www.frostycool.com/standard-d...n-replacement/
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Okay I ordered one of those 15-50120 AC Delco's from Rock Auto. (That Amazon link said they didn't have them in stock right now). Quite a bit more expensive than the standard Motorcraft ones but if that's the ticket...I've got a standard YG-346 coming with the order also so I'll have an extra I guess. Thanks for the advisement on this one. If the performance is still inadequate after all this repair work ill look into adding the valve onto the heater hose but that can be added later obviously.
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