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Replaced AC system Saturday, purple fluid all over e

This is a discussion on Replaced AC system Saturday, purple fluid all over e within the General Help forums, part of the LSx Technical Help Section category; Saturday I replaced my dying AC compressor with a brand new one, and replaced the dryer, condenser, and orifice tube ...

  1. #1
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    Replaced AC system Saturday, purple fluid all over e

    Saturday I replaced my dying AC compressor with a brand new one, and replaced the dryer, condenser, and orifice tube while I was at it. Today, I noticed a burning plastic like smell coming from the air vents, so I popped the hood and noticed that everything was soaked in a purple fluid. I took a photo of some of it soaked up on a cloth, does anyone know what this fluid is and how I can resolve the issue? Engine oil temp is fine, and its 105 degrees here today. AC is cold, but takes a while to get cold and ultimately isn't ice cold.


  2. #2
    Smiles for 9.5 Years cammed goat's Avatar
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    Looks like refrigerant oil. Did you make sure you tightened all nuts/bolts and use all of the supplied O-rings that came with the new compressor?

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    Quote Originally Posted by cammed goat View Post
    Looks like refrigerant oil. Did you make sure you tightened all nuts/bolts and use all of the supplied O-rings that came with the new compressor?
    I used all the supplied O-rings, tightened everything, and even checked it for leaks with a professional-grade AC machine. It showed -30 on the gauge, and a tech told me that was indicative of no leaks.

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    Smiles for 9.5 Years cammed goat's Avatar
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    The burnt plastic smell is odd though. Was there any squealing coming from under the hood when you smelled the odor? I am wondering if the AC clutch took a shit on ya.

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    No squealing. I ran the car and watched the belts turn, everything seemed fine, and I didn't see anything spraying out.

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    Smiles for 9.5 Years cammed goat's Avatar
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    Welp...only thing you can do is have dye injected into the A/C system and check around the compressor and lines for leaks. If you have a leak...which from the pics, it looks like you do...the faulty parts will have to be replaced.

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    Does this system use the over pressure purge valve.......?

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    Waiting on the Tree transamtom's Avatar
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    You need to make sure there wasn't too much oil in the system.

    The way you do it is drain the old compressor oil into a measuring cup.

    Only add that much oil to the new compressor.,any more and its overfull.

    Thats what probable happened.

    Hopefully you didn't damage the seals on the new comp.

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    O U 8 1 2 Spaz's Avatar
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    when you charged the new unit how much did you fill it???
    Last edited by Spaz; 06-15-2011 at 01:43 PM.

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    Found out today it is coolant, and that my water pump is on its last legs.

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