Bone dry, how much 134a?
Hotshot
Joined: Jul 2005
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From: Middle Tn.
Chris, Did you get the e-mail and did you find the leak?
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Posting Guru
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From: Amarillo, TX
Yea I look there first,the sticker is gone.
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From: Amarillo, TX
Have not found a leak yet, I am going to put a vacuum on it and see what happens. Thanks again for all of your help!!
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Hotshot
Joined: Jul 2005
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From: Middle Tn.
If you don't show a leak with the vacuum test you could have a restricted orifice tube causing the hi-side high pres. Hard to trouble shoot on the internet on some things. Not everything is black and white. And you still need good fan operation when the A/C is on. That is probably controlled thru the PCM/ECM. Techs, correct me if that last statement is incorrect. Dam electronics.
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Posting Guru
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From: Amarillo, TX
If you don't show a leak with the vacuum test you could have a restricted orifice tube causing the hi-side high pres. Hard to trouble shoot on the internet on some things. Not everything is black and white. And you still need good fan operation when the A/C is on. That is probably controlled thru the PCM/ECM. Techs, correct me if that last statement is incorrect. Dam electronics.
Post Fiend
Joined: Oct 2009
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From: N. Fort Worth, tx
no the fan will not come on or at least to a point were you can tell. its a duty cycled unit.
the orface tube is in the liquid line. its the small line next to the evap case with the quick disconnect.
Im not sure what issue you are having. high side to high, whats the low side doing?
the orface tube is in the liquid line. its the small line next to the evap case with the quick disconnect.
Im not sure what issue you are having. high side to high, whats the low side doing?
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Posting Guru
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From: Amarillo, TX
no the fan will not come on or at least to a point were you can tell. its a duty cycled unit.
the orface tube is in the liquid line. its the small line next to the evap case with the quick disconnect.
Im not sure what issue you are having. high side to high, whats the low side doing?
the orface tube is in the liquid line. its the small line next to the evap case with the quick disconnect.
Im not sure what issue you are having. high side to high, whats the low side doing?
Here is the thread that starting things.
https://www.ford-trucks.com/forums/9...c-problem.html
Post Fiend
Joined: Oct 2009
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From: N. Fort Worth, tx
did you evac the 134a and see how much was in it to start with. either under or overfull will cause no cooling effects.
was there every any icing on the lines at the evap case?
what were the pressures before when you checked?
have you put dye in the system and tryed to find a leak?
just an fyi Im not really an a/c guy. I try to stick with engines.
was there every any icing on the lines at the evap case?
what were the pressures before when you checked?
have you put dye in the system and tryed to find a leak?
just an fyi Im not really an a/c guy. I try to stick with engines.
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Posting Guru
Joined: Jun 2005
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From: Amarillo, TX
did you evac the 134a and see how much was in it to start with. either under or overfull will cause no cooling effects.
was there every any icing on the lines at the evap case?
what were the pressures before when you checked?
have you put dye in the system and tryed to find a leak?
just an fyi Im not really an a/c guy. I try to stick with engines.
was there every any icing on the lines at the evap case?
what were the pressures before when you checked?
have you put dye in the system and tryed to find a leak?
just an fyi Im not really an a/c guy. I try to stick with engines.
Bad thing is all of my reading are for not. As I was getting the readings I had to go inside. Bad thing the gauges came loose a I loss some freon. Dont know how much. I plan on putting a vacuum on it and see what it does. Then add 3 cans and a orifus tube as well.
Just need to find the orifus tube. Are there and O rings that need to be replaced then this is replaced?