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What is this part?

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Old Jun 24, 2024 | 12:17 AM
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From: SW MO
What is this part?


It's on a 2005 F250 V10 engine, there was a grey vacuum line laying next to it not connected to anything and it reaches the front and back nipples on this. The rear side is a 90 degree elbow with a nipple and the front is a straight nipple? So I am guessing that the grey vacuum line goes to either the front or back of it?
 
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Old Jun 24, 2024 | 05:40 AM
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Heater control valve. Grey vacuum line attaches to it
 
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Old Jun 24, 2024 | 05:43 AM
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You'll need to fish out the remaining line out of the rubber elbow on the end of it without damaging (or replace) and feed the line back in. Your ac will then blow cold again
 
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Old Jun 24, 2024 | 05:48 AM
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From: SW MO
You'll need to fish out the remaining line out of the rubber elbow on the end of it without damaging (or replace) and feed the line back in. Your ac will then blow cold again
Can you explain this a little more please
 
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Old Jun 24, 2024 | 06:02 AM
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Originally Posted by Digital_Dad
Can you explain this a little more please
the vacuum line broke at the 90 degree elbow in your picture.


if enough of the grey line inside the elbow is exposed to grab ahold of to pull out and you have enough Grey line remaining, simply reconnect the existing line to the elbow and carry on. If you damage the rubber elbow in an attempt to extract, oreillys or amazon sells a replacement: dorman 47408


 
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Old Jun 24, 2024 | 06:34 AM
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This is what it should look like. Straight connector, not a 90 degree fitting. Wire tie it to the harness so it doesn’t pull out.


 
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Old Jun 25, 2024 | 11:25 PM
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From: SW MO
I plugged the red vacuum line I created that I had stuck on the front of heater control valve and took the gray one I stuck on the post on the rear of the valve and moved it to the front where it belongs. So that's done.

But now I still don't have cold air. I do have a clicking coming from here:


Also the pipe is ice cold where I have it circled in blue but not past the black fitting:


​​​​​​its cold coming out of the box on the left and up to that black circular piece of plastic on the right but past that it's warm.
 
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Old Jun 26, 2024 | 08:41 AM
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Are you sure the clicking isn’t coming from the compressor clutch turning on and off? That looks like a pressure sensor.
 
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Old Jun 26, 2024 | 12:59 PM
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Absolutely, put my hand on it and felt the clicking and then unplugged it to verify and it stopped clicking.
 
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Old Jun 26, 2024 | 09:39 PM
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As far as it appears to me it’s the clutch cycling switch, but thought those were transducers. As far as I am aware, they don’t click. It should cause the clutch to turn on and off which is an obvious audible click. Unplugging it will cause the clutch to no longer cycle. Low pressure will also cause the clutch to not cycle.
 
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Old Jun 26, 2024 | 11:51 PM
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The clutch on the front of the AC compressor comes on and shuts right off over and over.
 
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Old Jun 27, 2024 | 06:50 PM
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Originally Posted by Digital_Dad
The clutch on the front of the AC compressor comes on and shuts right off over and over.
1. Cause is low on refrigerant.
2. Insufficient air flow across evaporator.
 
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