NEED HELP IN SOUTH CENTRAL PA

[JDMSTROKER]

Need help a/c only blowin out defrost not vents 00 f-250 7.3 anyone else ever had this problem uugh pullin my hair out gonna be hot soon.

[kanuck15]

check your vacuum lines for the 4x4. Ive heard of that messing with that before

[dazdillenger]

You have a vacumn leak. If you have ESOF, try plugging the vacuum lines that go to the differentials. If that works, you need to replace the seals inside the hubs. If it doesn't, check on the pass. inner fender for broken/cracked hoses/vacuum resovoir.

[JDMSTROKER]

thanks for info i just bought truck and i noticed the hubs have been changed
to warn manual lockouts maby that's my problem