blows cold only !

[Bulldogwayne]

no heat ! blows cold air only ! need heat pl help me ! ps. I have already replaced : thermostat , blend door,ACTUATOR,
blower motor sender,blower control valve,back flushed heater core,
thermostat housing,
ect. still no heat !

 

[techweenie]

Which blend door did you replace? There's two. The passenger side was broken on mine and it affected driver side too.