2005 GMC Yukon "heat blend door" Questions

...heat or just vent doesn't go where the mode says it should. Mostly comes out the defrost ports on the dash. This is for both the driver, passenger and rear seat controls. This is probably due to a ...

...heat - just cold air regardless of setting or how fast or slow I have fan speed (fan speed is fine). Auto control or manual doesn't seem to make any difference, The car has been sitting quite ...

Heat heaters (both passenger and driver) will come on, then go out in less than one minute. Push the buttons again - they come on but go out quicker. Press again, they go out almost immediately. What ...

...heat is on. It blows good just hot air. I have read that it could be the heater valve not closing...Is the the same thing as the blend door actuator? Should I start with that or the rear ac expansion ...

i have a 2000 gmc yukon and have no heat cold air blows out of the vents Heater core is probably plugged, or the blend doors are stuck. check the in and out hoses on the fire wall

...heat, just blows cold air what could it be Check coolant level. if ok then see if engine comes up to temp. 190+ at thrmostat housing. If not, replace thermostat. If thermostat is ok, feeel heater ...

blend door Actuator is not working correctly. It seems like it is over travels and gets stuck or something. Tried to reset it by removing the HVAC fuse. Bought new actuator. started to worked normally

...heat. I have checked the temp going in and coming out of the heater sore, 20 degree difference. The t-stat seems to be workin fine. Checked the upper rad hose that goes to the t-stat its at 180 and ...

heat doesnt get hot inside 96 yukon, heater hoses get hot. wheres vac sorce to heater control. the temperature control bend door is electrically (not vacuum controlled) moved by a part called the ...

...on floor i cannot get the heat to come out on the floor no matter what position the switch is in. comes out on defrost only is this the blend door not moving. and will new actuator fix it.