1990 Jeep Cherokee Limited Edition
 

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

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
>

The vacuum reservoir is located inside the right front bumper (yeah
sounds strange). Tow bolts from the bottom of the bumper hold the
thing in place. The vacuum lines run along the right fender and go
behind the battery. On my 88 the battery acid ate through the vacuum
line and same symptoms.