What CONTROLs A/C-Htr air direction between Defrost/Floor/Cab, elect valves??? on 2003 Dodge Ram 1500

A/C-Htr air vents ONLY blow straight into cab regardless of control switch setting; will NOT blow UP (Defrost) nor DWN (Floor) directions at all!

by in Lake Charles, LA on July 12, 2012
1 answer 4 comments
ANSWER by on July 12, 2012
THEY ARE BLEND DOORS THAT CONTROL THIS. HAVE IT DIAG DUE TO THERE ARE 3 AND A FRESH AIR DOOR.
COMMENT by on July 12, 2012
THX; IF 'blend drs' are elect control VALVES, can a FUSE be the possible problem???
COMMENT by on July 12, 2012
not normally its the actuator most of the time
COMMENT by on July 12, 2012
BIG THX, globalhelper, good to know info! Bottomline - I reckon they will have to rip out the dash to get to the root of the problem.
COMMENT by on July 12, 2012
not always 3 are acessed easy and the other is like a 5 hour job. u just have to know which one it is, hope this helps