defrost only?

[Cory S]

ok just got done installing new swamps stage 1's in the excursion runs amazing but ac is on defrost only the vacume pump works i tested that???????

[thbd77]

maybe a vacuum leak see if the 4 wheel drive works hubs wont work with a leak either.

[PolarBear]

Could be a leak in the vacuum lines somewhere though. Possibly a hose off of a T or something.

[ocrush]

plug the vacuum pump (located on the inner P/S fender) and the lines formerly connected to it. Then try running the ac on various settings. If it now works start hunting for leaks. My hubs were the culprit, were not dependable, went with manuals. Good luck!

[Zaairman]

You popped off a vacuum line somewhere... Inspect all of the lines and go from there.