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Where is the Low Pressure AC Port / Valve?


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8 replies to this topic

#1 OFFLINE   cmax-nynj

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Posted 14 June 2015 - 10:32 AM

same as topic?  I only see the High pressure port under the hood









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#2 OFFLINE   Plus 3 Golfer

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Posted 14 June 2015 - 08:29 PM

Item 6 in snippet against firewall.  Looks like you have to remove the engine cover at minimum to get to it.

 

 

med_gallery_167_32_48612.jpg

gallery_167_32_18641.jpg


Edited by Plus 3 Golfer, 15 June 2015 - 08:08 AM.

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#3 OFFLINE   cmax-nynj

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Posted 15 June 2015 - 06:27 AM

This is a stupid design but thank you. Would you know what item 3 is?



#4 OFFLINE   Plus 3 Golfer

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Posted 15 June 2015 - 08:09 AM

See my post above.



#5 OFFLINE   cmax-nynj

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Posted 16 June 2015 - 10:04 AM

Thanks


Edited by cmax-nynj, 16 June 2015 - 10:15 AM.


#6 OFFLINE   tracks_II

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Posted 17 June 2016 - 04:28 PM

A couple of weeks ago when I topped off the A/C I found that I could access the low pressure port by reaching through the opening in the right wheel well where the trans-axle comes out. I pulled the right front tire, turned the steering wheel all the way to the right and reached right up to the low pressure port. I had to work by feel, but there was a surprising amount of room back in behind the engine. I didn't run into anything hot, so didn't have to wait for the car to cool off before unhooking the hose.

 

I took some pictures that show how to to do it and even shows the low pressure port. Once you know where to look, it's pretty straight forward.

 

The blue hose is the low pressure. This picture shows how I routed it so I could reach it from below.

Attached File  1.JPG   165.27KB   1 downloads

 

This picture shows the location of the high pressure port, (red hose).

Attached File  2.JPG   184.38KB   0 downloads

 

Right front wheel well with the tire removed. The red circle shows the location of  the low pressure port. You have to reach up (yellow arrow) to get to it.

Attached File  3.jpg   110KB   1 downloads

 

This view is under the car, looking up. Once again the red circle shows the location of the port.

Attached File  4.jpg   110.24KB   1 downloads

 

Close up view of picture 4. The blue hose is attached to the low pressure port. When you go looking for the port, it will have a black plastic cap screwed on it.

Attached File  5.jpg   97.53KB   1 downloads

 

Hope this helps.


Edited by tracks_II, 17 June 2016 - 04:48 PM.

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#7 OFFLINE   cmax-nynj

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Posted 11 July 2016 - 09:28 AM

Thank you very much.  Does your AC blow ice-cold on hot days now?  I have two cars and I noticed the CMax does not blow cold enough on hot sunny days since day 1.



#8 OFFLINE   tracks_II

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Posted 19 July 2016 - 11:53 AM

Thank you very much.  Does your AC blow ice-cold on hot days now?  I have two cars and I noticed the CMax does not blow cold enough on hot sunny days since day 1.

Yes, adding a few ounces really helped on triple digit temperature days. Of course, the only proper way to be sure the system has the correct amount of R-134a is to evacuate it and then put in the number of ounces Ford has specified. 



#9 OFFLINE   cmax-nynj

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Posted 02 July 2017 - 06:38 PM

Thank you very much for the tip. I was able to find the Low pressure port after removing the wheel and felt it by hand.  I added a little R-134a since I was worried about over-charging. I had temperature reading as low as 28F while the car was still in the air. Once rolling, however, I never got reading below 32F. I will try recharging again on a hot day.  Ford engineers couldn't have made this more difficult.  BTW, the remaining refrigerant from the hose had a green dye. Was it the same in your case?


Edited by cmax-nynj, 02 July 2017 - 06:39 PM.







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