everything blows through the defroster vents, makes A/C very inefficient in AZ heat.

I see the lines on the manifold on DS (this is a 95 4.0) that look fine.

I don't hear any vacuum hissing behind dash. Does anyone know the routing of the vacuum hose that comes in behind the dash to feed the HVAC panel? The service manual and AllData are no help at all.

TIA

 

their under and behind the dash, a couple come in through the passenger side near the fuel shut off switch. i think they go up behind the glove box and over.