AC Recharge - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 08-16-2010, 07:48 AM Thread Starter
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AC Recharge

AC is not my strong suit so bare with me here. If I open my system today (after evacuating and capturing the 134) to replace the orifice tube and draw a vacuum on it, do I need to re-add any oil/a first charge or can I just go right in with the regular 134? Thanks!

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post #2 of 2 Old 08-16-2010, 10:48 AM
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Provided it has the correct amount now and you don't lose any evacuating the system, no additional oil should be needed. I haven't gotten around to responding to your other post yet but did you find out where the fixed orfice tube is? I've been thinking about this a bit and I don't recall if you did this or not... I need to go back and reread the whole thread, but I'd be inclined to try a pressure switch before opening the system again just to save the hassle in the event it's not the orfice tube. They're less than $20.

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