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So I have this excursion was a v10 and now it has a 2002 7.3 in it . the engine did not have ac compressor on it so my question is will the v10 ac compressor fit on the 7.3 I know that the v10 one has 3 bolts and the 7.3 has 4 bolts would they line up ? And would I be able to use it ? It’s getting upwards of 100 degrees out here in California and I’m not wanting to sweat lol
well yeah they are different but I don’t know really what to do at this point the v10 ac system is still intact but the compressor
Maybe get a high quality image at various angles of the 7.3L and V-10 compressors and compare them. Then find out the individual operating parameters and compare them. Then find out their auxiliary equipment and compare them. Then find out their fittings, connection points and wiring connectors and compare them.
You say the V-10 AC system is still intact, so comparisons between the two should be relatively easy looking at a parts supplier like Tasca or another genuine Ford parts supplier.
Also, is there an update to your "won't start" thread which I have linked below. If there is an update, people may benefit in the future from the loop being closed on the thread.
The operation of the compressor is simple.
Belt turns it, clutch engages or disengages depending upon pressure. Thats it.
Mounting changes with application.
AC Line connection changes with application.
If you can physically bolt it up, make the belt work, and make a good connection to the hoses, and connect the electrical portion to it, it will most likely work.
Your AC system does not care what compressor is connected to it, only that it produces pressure when commanded.
I imagine that 7.3 vs 6.8 compressors are mounted in different locations, requiring different mounts and lines.
I would bolt a 7.3 compressor up to a 7.3 mount on your 7.3 and adapt the lines to fit your expedition. I would imagine 7.3 expedition AC lines would bolt right up.
Maybe get a high quality image at various angles of the 7.3L and V-10 compressors and compare them. Then find out the individual operating parameters and compare them. Then find out their auxiliary equipment and compare them. Then find out their fittings, connection points and wiring connectors and compare them.
You say the V-10 AC system is still intact, so comparisons between the two should be relatively easy looking at a parts supplier like Tasca or another genuine Ford parts supplier.
Also, is there an update to your "won't start" thread which I have linked below. If there is an update, people may benefit in the future from the loop being closed on the thread.
The operation of the compressor is simple.
Belt turns it, clutch engages or disengages depending upon pressure. Thats it.
Mounting changes with application.
AC Line connection changes with application.
If you can physically bolt it up, make the belt work, and make a good connection to the hoses, and connect the electrical portion to it, it will most likely work.
Your AC system does not care what compressor is connected to it, only that it produces pressure when commanded.
I imagine that 7.3 vs 6.8 compressors are mounted in different locations, requiring different mounts and lines.
I would bolt a 7.3 compressor up to a 7.3 mount on your 7.3 and adapt the lines to fit your expedition. I would imagine 7.3 expedition AC lines would bolt right up.
ok imma try that there’s a guy in Vegas that has junkyard full of excursion
The OE Ford manifold hose set off the 7.3 compressor is NLA, (from the dealers anyway) you may find it in aftermarket, Tasca, Etc. Captured in the first pic below is the V-10 I replaced the manifold studs, nuts, and gaskets on, the A/C compressor is below the manifold to the right, notice the manifold attaches to the side of the compressor body, whereas the 7.3 compressor attaches to the rear of the compressor body. Second pic..
So it’s looking like the compressor on v10 sits at the bottom of the engine what !?! That’s crazy well it looks like I’ll be getting lines too lol don’t I have to vacuum the system out too ?
Absolutely, a vacuum removes moisture in the system and brings the system below atmospheric pressure, the oil is hygroscopic, (a sponge for moisture).
Best to do everything right the first time. Including all O rings that you can get to, and or that you disturb.
I have found what I believe is the ac compressor plugs ? Would I still be able to use these for the 7.3 compressor? And would the ac lines that come off still hook up the the evaporator that’s in front of the radiator? One line was cut off and I’m thinking that went to the compressor from the v10 and it’s just been hanging off to the side would this cause damage to my ac after I vacuum it ? I live out in the deser
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I have found what I believe is the ac compressor plugs ? Would I still be able to use these for the 7.3 compressor? And would the ac lines that come off still hook up the the evaporator that’s in front of the radiator? One line was cut off and I’m thinking that went to the compressor from the v10 and it’s just been hanging off to the side would this cause damage to my ac after I vacuum it ? I live out in the deser
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You absolutely need a 7.3 lineset from compressor to condenser and accumulator/dryer.
The round plug will go to pressure switch that is on the line to dryer and the flat plug is for compressor clutch.
If there was not a compressor failure or similar, you can just evacuate the system and add oil and refrigerant.
I strongly recommend you install a 38639 orifice tube for colder AC. I also like to add a valve to the heater core supply (from block, the return is to water pump). Closing this valve in summer makes the air/cab even colder. The best valve I’ve found is a 1/4 turn 3/4” PEX barbed valve. I like to put it on the hose where it runs parallel to the firewall.
