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Old 11-28-2022, 08:22 PM   #1
Monaco Owners Club
Join Date: Nov 2014
Location: Chilliwack BC
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A/C leak??

I took off the bottom fresh air cover on the passenger side between bottom of dash and floor at the top of the steps on 2004 Monaco dynasty. When I put the screw in the top left corner there was a hissing sound and red oily fluid came out as it kept hissing. Is that Freon or whatever they use now? Hopefully it’s just for the dash air and I don’t have to worry on getting it fixed tell spring and can still use it to go to the sunny weather for winter?
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Old 11-28-2022, 09:00 PM   #2
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Imho I would disconnect dash a/c compressor electric connection.. so you will not burn compressor up.. that way you cannot inadvertently run compressor..
Good luck and keep us posted
2000 southwind storm, workhorse custom chassis with 7.4l vortec
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Old 11-28-2022, 10:16 PM   #3
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A/C leak??

It would either be freon / oil from air conditioner or antifreeze from heater coil.

If it leaks a lot more with motor running and hot its antifreeze otherwise its the a/c and will blow ambient air from vents.

There is a low pressure cutoff switch on the a/c so compressor wont engage until you get it repaired.
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Old 11-28-2022, 10:42 PM   #4
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Thank you for the help. Will be an expensive repair I’m sure. Terrible place to get at where the leak is.
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Old 11-28-2022, 11:29 PM   #5
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Chances are there were different length screws securing that panel. When you reinstalled it, you may have used a longer screw than was removed from that location. I would suggest removing the panel again to verify what the screw apparently punctured. Refrigerant is colorless and I have not seen red colored refrigerant oil either. It might be a dye that was installed in the A/C for leak detection.

Coolant could be red, if the screw hit heater components. If leak is coolant, you will need that plugged up before travels.

Last thing I thought of being red, is ATF fluid used for hydraulic systems. Any chance there could be a hose back there? I would want to be sure of what leaked and from where.
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Old 11-29-2022, 11:00 AM   #6
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Your slide and jacks hydraulic pump is there. It can have atf in it. I would slide under the coach and check. It shouldn't be ac. The dye for ac is an ugly greenish brown that you see with a black lite. Radiator fluid could be red and is a little oily feeling but usually it's way on the orange side of red and the color is very translucent.
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