Any suggestions on why I only have air flow out my defroster vents of my 01 ram? Temperature works fine just no air flow control.. thanks for any help!!

 

Broken vac line. Check lines that Come off the t in the psssnegee side of the intake. one goes up in to the firewall. If it's broken and retracted back into the dash you're kinda boned.

 

Search this forum for "wild vents"... plenty of info on the issue.

 

Thanks guys, found a cracked hard plastic vac line off the firewall but right before the check valve.. All I did was pull the old piece out of the rubber boot from the check valve and I had enough slack to slide it back over the existing plastic line.. works perfect!!!! So thanks again!!!!!