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Old Oct 21, 2015 | 08:04 PM
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I have a question regarding the long copper tube that comes off of my expansion valve... please see pics below... From what I can tell looking at my old a/c evaporator, a copper wire was wrapped against it. Do I wrap this copper tube around the big/upper evaporator tube and secure it with a wrap of sorts. The end splits in two directions, does one end stay out of the wrap or would all of this be wrapped up? Thanks in advance, Jason






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Old Oct 21, 2015 | 08:35 PM
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thats the sensor bulb. that gets taped using a tar based tape against the evaporator tube thats on top. the tape is available at any HAVC shops
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Old Oct 21, 2015 | 08:40 PM
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So just tidy it up and wrap as much of it as I can against the tube? Short of kinking the tube, is there a wrong way to do this?
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Old Oct 21, 2015 | 08:42 PM
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you only need the bulb touching the tube. so just tidy it up and tape it up. you will know you did it wrong when your AC doesn't work
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Old Oct 21, 2015 | 08:56 PM
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That's the part I'm trying to avoid! Wish I understood the A/C system like I do the rest of the car. I've never had A/C to mess up!
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Old Oct 21, 2015 | 09:01 PM
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I feel your pain last year I learned more then I needed to know when I had to do dads 67 with AC. The worse part is we did not take it apart. But it worked when we got done.
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Old Oct 21, 2015 | 11:04 PM
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That sensing bulb needs to be secured tight to the line, so it can sense evaporator temp to feed refrigerant.
Too loose & it will not sense temperature.
ASk for some pics on here.
Chuck
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