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A/C leak detection
Any tricks? System seems to hold pressure on the low side with the engine off but loses it when the system is turned on, so I'm guessing a high side leak? It's hard to hear a leak with the fans on and engine running.
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dye
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Is that it, or is there a way to hook it up to compressed air and look for a hiss?
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I've seen other techs use leak detectors. The one we have at the shop is really touchy and I never use it, i'd rather use dye unless its a larger more obvious leak. similar to these (ours is really old) http://www.amazon.com/s/?ie=UTF8&key...l_5ka58bgawy_e
The main problem I could see with using compressed air would be the moisture you would let into the system. Unless you can vacuum it out for a long period of time you may create more problems. |
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I've never found an a/c sniffer that is accurate.
If you can see all the areas that the high and low pressures line bolt to that will use o-rings to seal you can try spraying windex or some sorta of soapy water to see if it bubbles otherwise dye is the best. You can also have a cracked evaporater and be leaking in the heater box sometimes you can see dye where the drain tube would leak out to. |
Dye it is. Thanks fellas.
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what are your running numbers on the low and high?
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Dye or a sniffer is what I do.
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Put the Dye is and then use the A/C, go for a ride and really let the A/C run. after your drive look for the dye. Mine is leaking out of the A/C compressor out of every nook in the casing itself. and it is super obvious and easy to see. if its leaking in a tight spot a blacklight might help
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Black light and yellow tinted glasses you get in a kit and it will be clear as day
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Didn't even get that far. It's the A/C box itself.
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A/c box ?
Talking about the evaporator? Curious Pictures or anything |
I'm guessing evaporator?
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Yeah, that's what I meant.
http://i211.photobucket.com/albums/b...eaterbox-1.jpg Not my car, and this is hacked up, but the dye/oil is leaking on the heat sheild near the toe pan. |
Glad you found it.
Not sure if that only houses the evaporator or not Think that is your tev (thermal expansion valve) where the connection is made might also have a connection inside Just remember follow the leak from the highest point |
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Yeah I fixed it and edited haha
Not your car but still a 4th gen like in the picture ? |
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I might have an evap for you out of a 99
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Let me know if you do. I need to check compatabilitiy, too.
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check it I'm 99% sure I still have it
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Its not that bad to do. I used to have a couple but I think I scrapped them.
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I have one from my 95
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