might be a vacuum problem, like a leak, that is causing the fresh air box to
send all air to the defrost.

I think others say that you will find a vacuum reservoir that might be
defective, or the hose to it defective. Look for any vacuum lines coming
from the firewall in the engine compartment and follow them to check the
system out.

good luck,
dave

"Mamas" > wrote in message
lkaboutautos.com...
> It's a Hot inside!!!Trouble with air conditioning. I thought that my air
> conditining went out in my Jeep (thought posibly in need of freeon, yet
> last night I stopped at work and the top dash vent up at the windsheild
> has cool air coming from it, yet my vents in the dash are'nt putting out
> the heat. What to do? What could be the problem? Some sort of blockage
> there? Please advise! Mamas
>