2004 Excursion - A/C Clutch
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5th Wheeling
Joined: Mar 2014
Posts: 43
Likes: 2
From: Plano
2004 Excursion - A/C Clutch
2004 Excursion (EB)- A/C Clutch
My AC blows warm air. One of the troubleshooting steps is to determine whether the clutch is engaged/spinning. I couldn't find any good video to help with this visual inspecting, mainly because of the pully location.
Any suggestion?
My AC blows warm air. One of the troubleshooting steps is to determine whether the clutch is engaged/spinning. I couldn't find any good video to help with this visual inspecting, mainly because of the pully location.
Any suggestion?
Cargo Master
Joined: Nov 2015
Posts: 3,420
Likes: 934
From: Fort Worth, TX
The front-most edge of what looks like the pulley assembly, which has a sort of triangular shape, is part of the clutch. If it isn't spinning, the clutch is not engaged. You should hear a distinctive "click" when the clutch engages and starts to spin.
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5th Wheeling
Joined: Mar 2014
Posts: 43
Likes: 2
From: Plano
Thanks for the prompt response, i couldn't determine whether its spinning even with a light 
, too hard to reach. I didn't try from the bottom though. Might be that's the better way.
Anyway, thanks for the prompt response, appreciate.
, too hard to reach. I didn't try from the bottom though. Might be that's the better way.Anyway, thanks for the prompt response, appreciate.
Fleet Mechanic
Joined: Jan 2023
Posts: 1,295
Likes: 439
Here is a good instructional video on how to replace the clutch, if that proves to be the problem. My AC clutch was starting to fall apart (the 3 rubber tabs failing) after 200,000 miles.
Last edited by Don Ridley; May 11, 2023 at 10:54 AM. Reason: fix youtube link
Fleet Mechanic
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5th Wheeling
Joined: Mar 2014
Posts: 43
Likes: 2
From: Plano
Jumping the LP switch spins the AC clutch so i started to recharge the refrigerant and it started to blow cold air. I was happy until I realized few hours later that I have a leak. it went down to 0.
I think i hear a noise in the accumulator.
I need to do a leak test and ran into:
Do you have any other youtube you recommend?
what compressor oil?
I think i hear a noise in the accumulator.
I need to do a leak test and ran into:
Do you have any other youtube you recommend?
what compressor oil?
Laughing Gas
Joined: Mar 2019
Posts: 947
Likes: 144
From: Columbus Ohio
If your unsure if the AC is charged correctly or its the clutch, jump out the low pressure switch for the AC and see what happens. If the AC compressor engages when you bypass the low pressure switch it had a low refrigerant charge. Now if the compressor runs without having to jump it out, and quits running after awhile(10 to 20 minutes or whatever time), its the clutch. The easiest way to fix it is loosenthe center bolt of AC compressor completely, remove the clutch and bolt in one piece paying attention to both washers coming off with the bolt/clutch, then remove the thinner washer and reassemble. The thin washer is typically. 060". Removing it will allow the compressor to lock back up. Doing that has saved me a few hundred dollars a few times now of not having to replace the clutch.
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5th Wheeling
Joined: Mar 2014
Posts: 43
Likes: 2
From: Plano
i already done that, my problem is now a leak. I need to run a leak test and looking for video recommendation and whether i should use soap or dye and whether i should use stop leak products.
Laughing Gas
Joined: Mar 2019
Posts: 947
Likes: 144
From: Columbus Ohio
Sorry, my bad I didnt read the whole thing
Cargo Master
Joined: Nov 2015
Posts: 3,420
Likes: 934
From: Fort Worth, TX
You could buy generic PAG 46 oil or spend more for the Motorcraft
https://parts.lakelandford.com/p/for...829/YN12D.html
https://parts.lakelandford.com/p/for...829/YN12D.html
Cargo Master
Joined: Nov 2015
Posts: 3,420
Likes: 934
From: Fort Worth, TX
For leak detection, I bought a kit with dye, color balanced glasses, and a UV flashlight. Put the dye in, charge the system, run it for a few days, and go searching for leaks after dark. Just be careful to keep from getting the dye everywhere. And be prepared to remove the cover of the evaporator box if you don't see any leaks elsewhere.