Ac stuck on defrost & floor

*update* found the break in the line
99e0388c46e22292b219dc1ab154be43.jpg
now how do I go about replacing it?


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Used a vacuum like rubber coupler to test it and it works. Thanks for all the advice and suggestions. Everything works like it should. Going to replace the line.


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I need Help. this item has a small leak the vacuum reservoir (black box)? it is on driver side, inside, above the left tire. Where can I get a new one I looked at Rock auto, no luck. The tire on that side wore a hole in it we fixed the hole still has leak in the maximum position. About 2;RPM we have improved it a lot. Decided to replace the box.

Any help would be great. Hoses are goo etc sb
 
I need Help. this item has a small leak the vacuum reservoir (black box)? it is on driver side, inside, above the left tire. Where can I get a new one I looked at Rock auto, no luck. The tire on that side wore a hole in it we fixed the hole still has leak in the maximum position. About 2;RPM we have improved it a lot. Decided to replace the box.

Any help would be great. Hoses are goo etc sb

how did the tire rub a hole thru it?

http://www.fordparts.com/Commerce/PartDetail.aspx?n=4zn1NYqy5N351HtGwWc9%2fg%3d%3d&id=421843281&m=2&search=true&year=2003&make=Mercury&model=Marauder
 
Hi thanks for the info. not sure. I was looking for a part number as it causes the Vacuum air, to not keep up with the Max air button. RPM over 2000. Has to be the vac box as all the rest in series has been replaced.
 
it causes the Vacuum air, to not keep up with the Max air button.
Not sure what you mean by "keep up with". All the MAX setting does is turn the temp down to 60°, close the Recirc/Fresh door, and turn up the fan speed.

If you have a leak anywhere in the vacuum supply, you should have the infamous default-to-defrost issue when accelerating or under a heavy load.

Also check the supply line right where it goes through the firewall. Others have found cracks in the line there.
 
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