only defrost???

[bigredneck61088]

just got done body lifting my 98 4.0 4x4 and just noticed air ony comes out ofthe defrost vent no matter what setting switch is on... i looked under the hood and havent seen any vacuum lines off but i may have missed seeing a few... any suggestions or atleast can u point me in the right direction of things to check???

 

[Earl43P]

The vaccum reservoir is usually a black sphere or a torpedo shape. One vaccum tube goes in, one comes out and goes to the heater control. One of yours is probably disconnected or burnt through.

 

[bigredneck61088]

well i tinkered with it tonight i get vacuum at the resevoir and back out of it, i get vaccuum going to t after it but havent made it any farther... if it is not a line is there anything after the dash that could be the culprit besides a line